Metadata: Identification_Information: Citation: Citation_Information: Originator: Athey, J.E. Originator: Szumigala, D.J. Originator: Newberry, R.J. Originator: Werdon, M.B. Originator: Hicks, S.A. Publication_Date: 2004 Title: Bedrock geologic map of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska Geospatial_Data_Presentation_Form: Map and vector digital data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2004-3B Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (DGGS) Other_Citation_Details: 1 sheet, scale 1:50,000 Online_Linkage: http://dx.doi.org/10.14509/3310 Description: Abstract: The Preliminary Interpretive Report 2004-3B, "Bedrock geologic map of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska," is the bedrock geologic map of an approximately 123-square-mile area in the central Livengood Quadrangle, Alaska. Purpose: The bedrock geologic map was produced from field work in 2003 by mineral-resource personnel from the Alaska Division of Geological & Geophysical Surveys and the University of Alaska Fairbanks. Additional mapping by DGGS personnel in 2001 was incorporated into the project. The purpose of the project is to provide 1:50,000-scale geologic mapping of the Livengood airborne geophysical survey area. The Livengood airborne geophysical surveyhelicopter-based survey included aeromagnetic and electromagnetic data which were released by DGGS in 1999. The geophysical survey and geologic mapping are part of the Alaska Airborne Geophysical/Geological Mineral Inventory Program, a special multi-year investment by the State of Alaska to expand Alaska's geologic and mineral resources knowledge base, catalyze future private-sector mineral exploration and development, and guide state planning. Supplemental_Information: The 16 layers listed below are present as shape files. For printing or viewing from a GIS environment, the layers are listed in order of topmost layer to bottommost layer. Attribute information for the 16 layers (entities) is included in this metadata file under the "Entity_and_Attribution_Information" section. Each layer is listed and described in detail under its own heading starting "Entity_Type_Data_Layer". >lvg_ages point locations of age data >lvg_fossils point locations of fossil data >lvg_structure point locations of bedding and foliation orientation data >PD_97TLdh point locations of drill holes from Placer Dome Exploration, Inc. 1997 Tolovana project >lvg_foldsymbols symbols depicting fold types and orientations >lvg_faultsymbols symbols and text depicting fault movement >lvg_dikeoriented dike strike and trend orientations from DGGS mapping >lvg_dikes dike locations and compositions from DGGS mapping >lvg_industrydikes dike locations from industry data >lvg_xsectlines cross-section traces >livfold_polyline axial traces of folds >bedcont stratigraphic, intrusive, and fault (including thrust) contacts >lvgborder border of the map area >lvgshtdk polygon containing large number of industry-located igneous rock samples >lmst areas of limestone within the Amy Creek dolomite unit (lPzZd) >bedpolys bedrock unit polygons Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2001 Ending_Date: 2004 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -148.750 East_Bounding_Coordinate: -148.250 North_Bounding_Coordinate: 65.625 South_Bounding_Coordinate: 65.500 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: 40Ar/39Ar Theme_Keyword: Geologic Map Theme_Keyword: Geochemistry Theme_Keyword: Geochronology Theme_Keyword: Geology Theme_Keyword: Igneous Rocks Theme_Keyword: K-Ar Theme_Keyword: Livengood Bench Theme_Keyword: Metamorphic Rocks Theme_Keyword: Plutonic Rocks Theme_Keyword: Sedimentary Rocks Theme_Keyword: Sm-Nd Dates Theme_Keyword: STATEMAP Project Place: Place_Keyword_Thesaurus: none Place_Keyword: Alaska, State of Place_Keyword: Livengood Dome Place_Keyword: Livengood Mining District Place_Keyword: Livengood Quadrangle Place_Keyword: Money Knob Place_Keyword: Old Smoky Prospect Place_Keyword: Tolovana Mining District Stratum: Stratum_Keyword_Thesaurus: none Stratum_Keyword: Amy Creek Assemblage Stratum_Keyword: Cascaden Ridge unit Stratum_Keyword: Lost Creek Unit Stratum_Keyword: Rampart Group Stratum_Keyword: Victoria Creek Fault Stratum_Keyword: Wickersham Unit Temporal: Temporal_Keyword_Thesaurus: none Temporal_Keyword: Cambrian Temporal_Keyword: Cenozoic Temporal_Keyword: Cretaceous Temporal_Keyword: Devonian Temporal_Keyword: Holocene Temporal_Keyword: Mesozoic Temporal_Keyword: Mississippian Temporal_Keyword: Paleozoic Temporal_Keyword: Proterozoic Temporal_Keyword: Pleistocene Temporal_Keyword: Permian Temporal_Keyword: Pennsylvanian Temporal_Keyword: Silurian Temporal_Keyword: Ordovician Temporal_Keyword: Tertiary Temporal_Keyword: Triassic Access_Constraints: This report, map, and/or dataset are available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below). Use_Constraints: Any hardcopies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. Data_Set_Credit: This project is part of the Alaska Airborne Geophysical/Geological Mineral Inventory Program funded by the Alaska State Legislature and managed by State of Alaska, Department of Natural Resources (DNR), Division of Geological & Geophysical Surveys (DGGS). Partial funding for the geologic mapping, geochronologic dates, and geochemical analyses performed for this project was also provided through the U.S. Geological Survey STATEMAP Program under award number 03HQAG0055. Native_Data_Set_Environment: ArcInfo version 8.0.2, ArcGIS 8.3, and Microsoft Word 2000. Cross_Reference: Citation_Information: Originator: Athey, Jennifer E. Originator: Werdon, Melanie B. Originator: Newberry, Rainer J. Originator: Szumigala, David J. Originator: Craw, Patty A. Originator: Hicks, Shelley A. Publication_Date: 2004 Title: Geologic map of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2004-3a Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 1 map sheet, scale 1:50,000 Online_Linkage: http://dx.doi.org/10.14509/3309 Cross_Reference: Citation_Information: Originator: Athey, Jennifer E. Originator: Craw, Patty A. Publication_Date: 2004 Title: Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2004-3 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: Text report, 24 p. Accompanies PIR 2004-3A, PIR 2004-3B Online_Linkage: http://dx.doi.org/10.14509/1901 Cross_Reference: Citation_Information: Originator: DGGS, Staff Originator: Geoterrex-Dighem, Staff Originator: Stevens Exploration Inc., Staff Publication_Date: 1999 Title: CD-ROM containing profile and gridded data and section lines of 1998 geophysical survey data for part of the Livengood mining district, Alaska, central Livengood Quadrangle Geospatial_Data_Presentation_Form: Tabular digital data, raster digital data, vector digital data Series_Information: Series_Name: Public-Data File Issue_Identification: PDF 99-19 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 1 CD-ROM Online_Linkage: http://dx.doi.org/10.14509/3308 Cross_Reference: Citation_Information: Originator: Athey, J.E. Originator: Layer, P.W. Originator: Drake, Jeff Publication_Date: 2004 Title: 40Ar/39Ar ages of rocks collected in the Livengood C-3, C-4, and B-5 quadrangles, Alaska Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Raw-Data File Issue_Identification: RDF 2004-1 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 12 p. Online_Linkage: http://dx.doi.org/10.14509/2972 Cross_Reference: Citation_Information: Originator: Athey, J.E. Originator: Werdon, M.B. Originator: Szumigala, D.J. Originator: Newberry, R.J. Originator: Hicks, S.A. Originator: Erickson, H.A. Publication_Date: 2004 Title: Major-oxide, minor-oxide, and trace-element geochemical data from rocks collected in the Livengood Quadrangle, Alaska, in 2001 and 2003 Geospatial_Data_Presentation_Form: Report, map Series_Information: Series_Name: Raw-Data File Issue_Identification: RDF 2004-2 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/2971 Cross_Reference: Citation_Information: Originator: Newberry, R.J. Originator: Athey, J.E. Publication_Date: Unknown Title: Microprobe-based compositions of placer and lode gold in the Livengood area, Tolovana mining district, Alaska Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Raw-Data File Issue_Identification: in prep. Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Cross_Reference: Citation_Information: Originator: Bundtzen, T.K. Originator: Eakins, G.R. Originator: Conwell, C.N. Publication_Date: 1982 Title: Review of Alaska mineral resources 1981 Geospatial_Data_Presentation_Form: Report, map Series_Information: Series_Name: Annual Report Issue_Identification: AR 1981 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 48 p., 2 sheets, scale 1:42,240 Online_Linkage: http://dx.doi.org/10.14509/234 Cross_Reference: Citation_Information: Originator: Cathrall, J.B. Originator: Antweiler, J.C. Originator: Mosier, E.L. Publication_Date: 1987 Title: Occurrence of platinum in gold samples from the Tolovana and Rampart districts, Livengood Quadrangle, Alaska Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Open-File Report Issue_Identification: OFR 87-330 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 7 p. Online_Linkage: http://www.dggs.alaska.gov/pubs/id/11663 Cross_Reference: Citation_Information: Originator: Freeman, C.J. Originator: Schaefer, J.R.G. Publication_Date: 1999 Title: Alaska resource data file, Livengood Quadrangle Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Open-File Report Issue_Identification: OFR 99-574 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 464 p. Online_Linkage: http://www.dggs.alaska.gov/pubs/id/14654 Cross_Reference: Citation_Information: Originator: Glover, A.E. Publication_Date: 1950 Title: Placer gold fineness Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Miscellaneous Report Issue_Identification: MR 195-1 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Territorial Department of Mines Other_Citation_Details: 38 p. Online_Linkage: http://dx.doi.org/10.14509/990 Cross_Reference: Citation_Information: Originator: Newberry, R.J. Originator: Clautice, K.H. Publication_Date: 1997 Title: Compositions of placer gold in the Rampart-Eureka-Manley-Tofty area, eastern Tanana and western Livengood Quadrangles, central Interior Alaska, determined by electron microprobe analysis Geospatial_Data_Presentation_Form: Report, tabular data, figures Series_Information: Series_Name: Public-Data File Issue_Identification: PDF 97-49 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 49 p. Online_Linkage: http://dx.doi.org/10.14509/1813 Cross_Reference: Citation_Information: Originator: Nokleberg, W.J. Originator: Bundtzen, T.K. Originator: Berg, H.C. Originator: Brew, D.A. Originator: Grybeck, Donald Originator: Robinson, M.S. Originator: Smith, T.E. Originator: Yeend, Warren Publication_Date: 1987 Title: Significant metalliferous lode deposits and placer districts of Alaska Geospatial_Data_Presentation_Form: Report, map Series_Information: Series_Name: Bulletin Issue_Identification: B 1786 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 104 p., 2 plates, scale 1:5,000,000 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/3724 Cross_Reference: Citation_Information: Originator: Péwé, T.L. Originator: Wahrhaftig, Clyde Originator: Weber, F.R. Publication_Date: 1966 Title: Geologic map of the Fairbanks Quadrangle, Alaska Geospatial_Data_Presentation_Form: Report, map Series_Information: Series_Name: Miscellaneous Geological Investigations Map Issue_Identification: Map I-455 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 5 p., 1 sheet, scale 1:250,000 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/13676 Cross_Reference: Citation_Information: Originator: Reger, R.D. Publication_Date: 1987 Title: Preliminary photointerpretive maps of the geology, geologic-materials, permafrost, and wetlands-classification, Fairbanks C-5 Quadrangle, Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Public-Data File Issue_Identification: PDF 87-19 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 4 sheets, scale 1:31,680 Online_Linkage: http://dx.doi.org/10.14509/1321 Cross_Reference: Citation_Information: Originator: Smith, P.S. Publication_Date: 1941 Title: Mineral industry of Alaska - 1940 Geospatial_Data_Presentation_Form: Report, tabular data Series_Information: Series_Name: Bulletin Issue_Identification: Bull. 926 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 37 p. Online_Linkage: http://www.dggs.alaska.gov/pubs/id/3530 Cross_Reference: Citation_Information: Originator: Szumigala, D.J. Originator: Swainbank, R.C. Originator: Henning, M.W. Originator: Pillifant, F.M. Publication_Date: 2003 Title: Alaska's Mineral Industry 2002 Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Special Report Issue_Identification: SR 57 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 63 p. Online_Linkage: http://dx.doi.org/10.14509/2919 Cross_Reference: Citation_Information: Originator: Weber, F.R. Originator: Wheeler, K.L. Originator: Rinehart, C.D. Originator: Chapman, R.M. Originator: Blodgett, R.B. Publication_Date: 1992 Title: Geologic map of the Livengood Quadrangle, Alaska Geospatial_Data_Presentation_Form: Report, map Series_Information: Series_Name: Open-File Report Issue_Identification: OFR 92-562 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 20 p., 1 sheet, scale 1:250,000 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/11832 Cross_Reference: Citation_Information: Originator: Barnes, D.F. Publication_Date: 1961 Title: Gravity low at Minto Flats, Alaska Geospatial_Data_Presentation_Form: Report Larger_Work_Citation: Citation_Information: Originator: Unknown, ed., Publication_Date: 1961 Title: Short Papers in the Geologic and Hydrologic Sciences, Articles 293-435 Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Professional Paper Issue_Identification: P 424-D Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: p. D 254-257 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/3866 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/4263 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Location data for geologic point shape files were downloaded from Garmin 12XL GPS units into a Microsoft Access database. Field notes were manually entered into the database. Spatial data attributes were either queried directly from the database or attached to the objects using MapInfo Professional 6.5 or 7.5, and ArcGIS 8.3. Attributes were verified for consistency and completeness during the creation of the metadata. Geologic data used in the compilation are the field maps and notes from this project (2001 and 2003) as well as data from other sources as noted in the "Source_Information" section. The attributes of this geospatial data set consist of text identifiers and numeric codes that indicate the identity of the geologic unit or type of geologic feature and determine how each feature is symbolized. To check attribute accuracy, a color check plot was visually compared to the geologist's original compilation. Discrepancies between the digital geospatial dataset and the original analog or digital compilation were corrected as needed. The geologic interpretations presented in this report have undergone two technical reviews by geologists familiar with the subject of the report or geology of the map area. Reviewers' suggestions were incorporated into the final draft when deemed appropriate by the author. Logical_Consistency_Report: Topology is present on appropriate polygon and line feature classes of the originating geodatabase; others are point feature classes. Completeness_Report: This dataset includes feature classes that contain information about geologic units; age, fossil, and field sample locations; structural features; structural measurements; dike locations; and drill hole locations. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: DGGS location data and estimated position errors were downloaded from Garmin 12XL GPS units into an Access database. Sample numbers and locations with selected data were queried from the database or brought into an Excel spreadsheet and then spatially registered and analyzed in MapInfo Professional 6.5 or 7.5. See "Source_Information" section for horizontal positional accuracy of locations not measured by DGGS. Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 10 Horizontal_Positional_Accuracy_Explanation: A value of estimated position error in meters was calculated by the Garmin 12XL units and recorded for each sample location. Estimated position error calculated by the Garmin 12XL units was not less than 3 meters and averaged approximately 6 meters. The GPS system suffers from calculation and geometric error. This error results from items such as error in satellite positions, mathematical error introduced by the formulas used by the GPS unit for calculating position, and errors caused by narrow satellite alignments. Estimated position error is a value determined by the GPS manufacturer for the calculation and geometric error as a whole. "Selective availability," a deliberate degradation of GPS data managed by the U.S. government that induces an additional error of approximately 100 meters to a GPS location, was not in effect during DGGS's 2001 or 2003 field work. Bedrock geologic map data have a horizontal positional accuracy dependent on the "on-screen" method of digital cartography. Map error is induced by: (1) transferring map data from base topography to a mylar compilation map, with an estimated potential error due to a pen line width of approximately 0.001 being equivalent to approximately 1.5 meters on the ground; (2) the digitizing RMS error (24 control points on a regular grid have an average RMS error of 10.8 meters on the ground; individual control point error ranges from 4.3 to 21.2 meters on the ground); and (3) the accuracy of the human operator digitizing the geologic linework from the topographic base map, with an estimated error due to a pen line width of approximately 0.001 being equivalent to approximately 1.5 meters on the ground. Total potential horizontal error for bedrock geologic map features is estimated to be approximately 10 meters. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Albanese, M.D. Publication_Date: 1983 Title: Bedrock geologic map of the Livengood B-4 Quadrangle, east-central Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Report of Investigations Issue_Identification: RI 83-3 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:40,000 Online_Linkage: http://dx.doi.org/10.14509/2342 Source_Scale_Denominator: 40000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1983 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Albanese, 1983 Source_Contribution: This map contains geologic unit descriptions and outcrop locations and was used to plan traverses and help define geologic units. Source_Information: Source_Citation: Citation_Information: Originator: Allegro, G.L. Publication_Date: 1984 Title: Geology of the Old Smoky Prospect, Livengood C-4 Quadrangle Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Report of Investigations Issue_Identification: RI 84-1 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 10 p., 1 sheet, scale 1:120 Online_Linkage: http://dx.doi.org/10.14509/2360 Source_Scale_Denominator: 120 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1984 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Allegro, 1984 Source_Contribution: This report contains detailed information about the Old Smoky prospect that was used to help define unit descriptions and understand alteration textures seen in the area. Source_Information: Source_Citation: Citation_Information: Originator: Athey, J.E. Originator: Layer, P.W. Originator: Drake, Jeff Publication_Date: 2004 Title: 40Ar/39Ar ages of rocks collected in the Livengood C-3, C-4, and B-5 quadrangles, Alaska Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Raw-Data File Issue_Identification: RDF 2004-1 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 12 p. Online_Linkage: http://dx.doi.org/10.14509/2972 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2004 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Athey and others, 2004a Source_Contribution: This report contains 40Ar/39Ar age data that was used to constrain the timing of igneous activity and sericite-bearing gold-arsenopyrite alteration from the Old Smoky prospect. This report contains the raw analytical data for 40Ar/39Ar laser step-heating conducted at the University of Alaska Fairbanks Geochronology Lab in Fairbanks, Alaska. The locations for these data are plotted on the geologic maps, and their interpreted ages are cited in the booklet PIR 2004-3, which contains unit descriptions for reports PIR 2004-3a and PIR 2004-3b. Source_Information: Source_Citation: Citation_Information: Originator: Athey, J.E. Originator: Werdon, M.B. Originator: Szumigala, D.J. Originator: Newberry, R.J. Originator: Hicks, S.A. Originator: Erickson, H.A. Publication_Date: 2004 Title: Major-oxide, minor-oxide, and trace-element geochemical data from rocks collected in the Livengood Quadrangle, Alaska, in 2001 and 2003 Geospatial_Data_Presentation_Form: Map, spreadsheet Series_Information: Series_Name: Raw-Data File Issue_Identification: RDF 2004-2 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/2971 Source_Scale_Denominator: 63360 Type_of_Source_Media: Report, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2004 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Athey and others, 2004b Source_Contribution: The major-oxide, minor-oxide, and trace-element data contained in this report were used to assign root names and trace-element-indicated tectonic settings to igneous and weakly metamorphosed igneous rocks. These data were used to define map unit boundaries and were incorporated into unit descriptions for PIR 2004-3a and PIR 2004-3b, which are contained in booklet PIR 2004-3. Source_Information: Source_Citation: Citation_Information: Originator: Blodgett, R.B. Publication_Date: 1992 Title: Taxonomy and paleobiogeographic affinities of an early Middle Devonian (Eifelian) gastropod faunule from the Livengood Quadrangle, east-central Alaska Geospatial_Data_Presentation_Form: Report Publication_Information: Publication_Place: Stuttgart, Germany Publisher: Palaeontographica Abteilung A Other_Citation_Details: Palaeontographica Abteilung A, v. 221, p. 125-168 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1992 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Blodgett, 1992 Source_Contribution: This report contains fossil data that provide age constraint for the Cascaden Ridge sedimentary unit (Dc). Source_Information: Source_Citation: Citation_Information: Originator: Brosgé, W.P. Originator: Lanphere, M.A. Originator: Reiser, J.N. Originator: Chapman, R.M. Publication_Date: 1969 Title: Probable Permian age of the Rampart Group, central Alaska Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Bulletin Issue_Identification: B 1294-B Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 18 p. Online_Linkage: http://www.dggs.alaska.gov/pubs/id/3667 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1969 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Brosgé and others, 1969 Source_Contribution: This report contains descriptions and age data for the Rampart volcanic rocks and constrains the age of unit Trg. Source_Information: Source_Citation: Citation_Information: Originator: Bundtzen, T.K. Publication_Date: 1983 Title: Bedrock geologic outcrop map of the Livengood B-3 Quadrangle Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Report of Investigations Issue_Identification: RI 83-6 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:40,000 Online_Linkage: http://dx.doi.org/10.14509/2345 Source_Scale_Denominator: 40000 Type_of_Source_Media: Map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1983 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Bundtzen, 1983 Source_Contribution: This map contains geologic unit descriptions and outcrop locations and was used to plan traverses and help define geologic units. Source_Information: Source_Citation: Citation_Information: Originator: Chapman, R.M. Originator: Weber, F.R. Originator: Michael Churkin, Jr. Originator: Carter, Claire Publication_Date: 1980 Title: The Livengood Dome Chert, a new Ordovician formation in central Alaska and its relevance to displacement on the Tintina Fault Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Professional Paper Issue_Identification: P 1226-F Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: p. F1-F13 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/4189 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1980 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Chapman and others, 1980 Source_Contribution: This report contains information about Livengood Dome Chert unit Old, Lost Creek units Ss and Sl, and Amy Creek units lPzZmc, lPzZd, and lPzZmb. Source_Information: Source_Citation: Citation_Information: Originator: DGGS, Staff Originator: Geoterrex-Dighem, Staff Originator: Stevens Exploration Inc., Staff Publication_Date: 1999 Title: CD-ROM containing profile and gridded data and section lines of 1998 geophysical survey data for part of the Livengood mining district, Alaska, central Livengood Quadrangle Geospatial_Data_Presentation_Form: Tabular digital data, vector digital data Series_Information: Series_Name: Public-Data File Issue_Identification: PDF 99-19 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 1 CD-ROM Online_Linkage: http://dx.doi.org/10.14509/1901 Type_of_Source_Media: Tabular digital data, raster digital data, vector digital data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: DGGS and others, 1999 Source_Contribution: The geophysical datasets in this publication were used throughout the Livengood mapping project. Prior to field work, the geophysical data were used to identify locations of geophysically inferred faults and potential unit boundary locations, and unusual anomalies were noted for follow-up investigation in the field. Printed copies of the geophysical data, overlain by topography, were carried by geologists in the field to help determine the geologic cause for variations in the geophysical data along their traverses. During map compilation, geophysical data were useful for extending mapped contacts through regions covered by vegetation or surficial deposits. Source_Information: Source_Citation: Citation_Information: Originator: Foster, R.L. Publication_Date: 1966 Title: The petrology and structure of the Amy Dome area, Tolovana mining district, east-central Alaska Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Rolla, MO, USA Publisher: University of Missouri-Rolla Other_Citation_Details: Ph.D. dissertation, 225 p., 1:7,200 Source_Scale_Denominator: 7200 Type_of_Source_Media: Report, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1966 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Foster, 1966 Source_Contribution: This report contains detailed information about the Cambrian ophiolite assemblage and other surrounding units and was used to help define bedrock units in the map area. Source_Information: Source_Citation: Citation_Information: Originator: Freeman, C.J. Publication_Date: 2003 Title: Executive summary, Livengood project, Alaska Geospatial_Data_Presentation_Form: Report Publication_Information: Publication_Place: Fairbanks, AK, USA, not published Publisher: Avalon Development Corporation Other_Citation_Details: 14 p., includes geologic maps interpreted from Cambior Inc. exploration in 1999 Type_of_Source_Media: Report, figures Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2003 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Freeman, 2003 Source_Contribution: This report contains a summary of mineral industry work in Livengood and some geologic interpretation. Source_Information: Source_Citation: Citation_Information: Originator: Hanneman, Karl Publication_Date: 1998 Title: Summary report, Livengood Gold project, Interior Alaska Geospatial_Data_Presentation_Form: Report Publication_Information: Publication_Place: Not published Publisher: Alaska Placer Development, Inc. Other_Citation_Details: 14 p. (refers to soil grid conducted by E. Twelker, 1981-1984) Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Hanneman, 1998 Source_Contribution: This report contains a summary of mineral industry work in the Livengood area and mentions the soil grid conducted by Eric Twelker from 1981 to 1984. The soil grid was used in this study to help interpret the bedrock geology in areas not traversed by DGGS personnel. Source_Information: Source_Citation: Citation_Information: Originator: Hite, J.B. Publication_Date: 1977 Title: Summary report on the Money Knob project, Livengood, Alaska Geospatial_Data_Presentation_Form: Report Publication_Information: Publication_Place: Not published Publisher: Homestake Mining Company Other_Citation_Details: 5 p., 1 sheet, scale 1:4,800 Source_Scale_Denominator: 4800 Type_of_Source_Media: Report, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1977 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Hite, 1977 Source_Contribution: This report contains a geologic map that was used to supplement geologic mapping by DGGS personnel and locate unmapped felsic dikes. Source_Information: Source_Citation: Citation_Information: Originator: Irvine, T.N. Originator: Baragar, W.R.A. Publication_Date: 1971 Title: A guide to the chemical classification of the common volcanic rocks Publication_Information: Publication_Place: Ottawa, ON, Canada Publisher: Canadian Journal of Earth Sciences (National Research Council of Canada) Other_Citation_Details: Canadian Journal of Earth Sciences, v. 8, p. 523-548. Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Irvine and Baragar, 1971 Source_Contribution: This report contains methodology for calculating CIPW normative compositions and was used to determine the compositions of igneous rocks. Source_Information: Source_Citation: Citation_Information: Originator: Joesting, H.R. Publication_Date: 1941 Title: The Hudson Cinnabar prospect (Olive Creek), Tolovana district, Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Prospect Evaluation Issue_Identification: PE 49-6 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Territorial Department of Mines Other_Citation_Details: 6 p., 1 sheet, scale 1:240 Online_Linkage: http://dx.doi.org/10.14509/1931 Source_Scale_Denominator: 240 Type_of_Source_Media: Report, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1941 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Joesting, 1941 Source_Contribution: This report contains a description of the cinnabar mineralization at the prospect on Olive Creek. Source_Information: Source_Citation: Citation_Information: Originator: Lister, G.S. Originator: Snoke, A.W. Publication_Date: 1984 Title: S-C mylonites Publication_Information: Publication_Place: Amsterdam Publisher: Elsevier Ltd. Other_Citation_Details: Journal of Structural Geology, v. 6, p. 617-638 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1984 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Lister and Snoke, 1984 Source_Contribution: This report contains a description of S-C fabric in rocks experiencing shear and re-alignment of minerals. Source_Information: Source_Citation: Citation_Information: Originator: J.B. Mertie, Jr. Publication_Date: 1917 Title: The gold placers of the Tolovana district Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Bulletin Issue_Identification: B 662-D Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: p. 221-277 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/4735 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1917 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mertie, 1917 Source_Contribution: This report contains descriptions of geomorphology, mineralization, and geology in the Livengood area. Mertie discusses a hypothetical drainage reversal of Livengood Creek based on the geomorphologic features of the creek. Source_Information: Source_Citation: Citation_Information: Originator: Newberry, R.J. Originator: Haug, S.A. Publication_Date: 1997 Title: CIPW norm, trace element, and Sr isotopic data for igneous rocks of the Tanana B-1 Quadrangle and vicinity Geospatial_Data_Presentation_Form: Spreadsheet Series_Information: Series_Name: Public-Data File Issue_Identification: PDF 97-29I Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 16 p. Online_Linkage: http://dx.doi.org/10.14509/1780 Type_of_Source_Media: Report, tabular data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Newberry and Haug, 1997 Source_Contribution: This report contains trace-element data, which indicate a within-plate signature for the Rampart volcanic rocks (unit Trg) and suggest that the Rampart volcanic rocks may represent back-arc rifting in a marine environment. Source_Information: Source_Citation: Citation_Information: Originator: Reifenstuhl, R.R. Originator: Dover, J.H. Originator: Newberry, R.J. Originator: Clautice, K.H. Originator: Liss, S.A. Originator: Blodgett, R.B. Originator: Weber, F.R. Publication_Date: 1998 Title: Interpretive geologic bedrock map of the Tanana A-1 and A-2 quadrangles, central Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Public-Data File Issue_Identification: PDF 98-37B Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 17 p., 1 sheet, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/1864 Source_Scale_Denominator: 63360 Type_of_Source_Media: Report, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Reifenstuhl and others, 1998 Source_Contribution: This report contains descriptions of bedrock units that extend westward from the Livengood area, or that correlate with units in the Livengood area. The report also describes gold occurrences that may be genetically similar to lode gold prospects in the Livengood area. Source_Information: Source_Citation: Citation_Information: Originator: Reifenstuhl, R.R. Originator: Dover, J.H. Originator: Pinney, D.S. Originator: Newberry, R.J. Originator: Clautice, K.H. Originator: Liss, S.A. Originator: Blodgett, R.B. Originator: Bundtzen, T.K. Originator: Weber, F.R. Publication_Date: 1997 Title: Geologic map of the Tanana B-1 Quadrangle, central Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Report of Investigations Issue_Identification: RI 97-15A Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 17 p., 1 sheet, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/2551 Source_Scale_Denominator: 63360 Type_of_Source_Media: Report, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Reifenstuhl and others, 1997 Source_Contribution: This report contains descriptions of bedrock units that extend westward from the Livengood area, or that correlate with units in the Livengood area. The report also describes gold occurrences that may be genetically similar to lode gold prospects in the Livengood area. Source_Information: Source_Citation: Citation_Information: Originator: Rinehart, C.D. Originator: Light, T.D. Originator: Shew, N.B. Publication_Date: 1997 Title: Petrography and radiometric ages for selected rocks from the Livengood Quadrangle, Alaska Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Open-File Report Issue_Identification: OF 97-484-D Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 22 p. Online_Linkage: http://www.dggs.alaska.gov/pubs/id/12830 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Rinehart and others, 1997 Source_Contribution: This report contains age data for igneous units that may be genetically similar to igneous rocks in the map area. Source_Information: Source_Citation: Citation_Information: Originator: Robinson, M.S. Publication_Date: 1983 Title: Bedrock geologic map of the Livengood C-4 Quadrangle, east-central Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Report of Investigations Issue_Identification: RI 83-4 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:40,000 Online_Linkage: http://dx.doi.org/10.14509/2343 Source_Scale_Denominator: 40000 Type_of_Source_Media: Map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1983 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Robinson, 1983 Source_Contribution: This map contains geologic unit descriptions and outcrop locations and was used to plan traverses and help define geologic units. Source_Information: Source_Citation: Citation_Information: Originator: Saunders, R.H. Publication_Date: 1955 Title: Report on the Griffin Nickel prospect, Livengood Quadrangle Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Prospect Evaluation Issue_Identification: PE 49-13 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Territorial Department of Mines Other_Citation_Details: 8 p. Online_Linkage: http://dx.doi.org/10.14509/1938 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1955 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Saunders, 1955 Source_Contribution: This report contains a description of variably mineralized quartz-carbonate-altered serpentinite. Source_Information: Source_Citation: Citation_Information: Originator: Smith, T.E. Publication_Date: 1983 Title: Bedrock geologic map of the Livengood C-3 Quadrangle, east-central Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Report of Investigations Issue_Identification: RI 83-5 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:40,000 Online_Linkage: http://dx.doi.org/10.14509/2344 Source_Scale_Denominator: 40000 Type_of_Source_Media: Map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1983 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Smith, 1983 Source_Contribution: This map contains geologic unit descriptions and outcrop locations and was used to plan traverses and help define geologic units. Source_Information: Source_Citation: Citation_Information: Originator: Weber, F.R. Originator: Blodgett, R.B. Originator: Harris, A.G. Originator: J.T. Dutro, Jr. Publication_Date: 1994 Title: Paleontology of the Livengood Quadrangle, Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Open-File Report Issue_Identification: OF 94-215 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 24 p., 1 sheet, scale 1:250,000 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/11883 Source_Scale_Denominator: 250000 Type_of_Source_Media: Report, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1994 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Weber and others, 1994 Source_Contribution: This report contains fossil data that provide age constraint for several of the sedimentary units in the map area. Source_Information: Source_Citation: Citation_Information: Originator: Weber, F.R. Originator: Smith, T.E. Originator: Hall, M.H. Originator: Forbes, R.B. Publication_Date: 1985 Title: Geologic guide to the Fairbanks-Livengood area, east-central Alaska, AAPG, SEPM, and SEG Meeting, Anchorage, Alaska, 1985 Geospatial_Data_Presentation_Form: Report Publication_Information: Publication_Place: Anchorage, AK, USA Publisher: Alaska Geological Society Other_Citation_Details: 44 p. Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1985 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Weber and others, 1985 Source_Contribution: This report contains descriptions of geologic units that were incorporated into the unit descriptions. Source_Information: Source_Citation: Citation_Information: Originator: Weber, F.R. Originator: Wheeler, K.L. Originator: Rinehart, C.D. Originator: Chapman, R.M. Originator: Blodgett, R.B. Publication_Date: 1992 Title: Geologic map of the Livengood Quadrangle, Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Open-File Report Issue_Identification: OF 92-562 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 20 p., 1 sheet, scale 1:250,000 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/11832 Source_Scale_Denominator: 250000 Type_of_Source_Media: Report, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1992 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Weber and others, 1992 Source_Contribution: This report and map contain detailed unit descriptions and geologic information that directly apply to this study. This publication was used to help define geologic units and unit boundaries in the map area. Source_Information: Source_Citation: Citation_Information: Originator: Wheeler, K.L. Originator: Weber, F.R. Publication_Date: 1988 Title: Bibliography of selected references on the geology of the Livengood Quadrangle, east-central Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 88-203 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 79 p. Online_Linkage: http://www.dggs.alaska.gov/pubs/id/11749 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wheeler and Weber, 1988 Source_Contribution: This compilation of references contains an introduction that identifies the Victoria Creek Fault as a strand of the Tintina Fault system. Source_Information: Source_Citation: Citation_Information: Originator: Wilson, F.H. Originator: Dover, J.H. Originator: Bradley, D.C. Originator: Weber, F.R. Originator: Bundtzen, T.K. Originator: Haeussler, P.J. Publication_Date: 1998 Title: Geologic map of central (Interior) Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Open-File Report Issue_Identification: OF 98-133 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 76 p., 3 sheets, scale 1:500,000 Online_Linkage: http://pubs.usgs.gov/of/1998/of98-133-a Source_Scale_Denominator: 500000 Type_of_Source_Media: Report, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wilson and others, 1998 Source_Contribution: This report contains detailed unit descriptions that were used to help define the geologic units in the map area. Source_Information: Source_Citation: Citation_Information: Originator: Blodgett, R.B. Originator: Zhang, Ning Originator: Ormiston, A.R. Originator: Weber, F.R. Publication_Date: 1988 Title: A Late Silurian age determination for the limestone of the "Lost Creek Unit," Livengood C-4 Quadrangle, east-central Alaska Geospatial_Data_Presentation_Form: Report Larger_Work_Citation: Citation_Information: Originator: T.D. Hamilton, ed. Originator: J.P. Galloway, ed. Publication_Date: 1988 Title: Geological Studies in Alaska by the U.S. Geological Survey during 1987 Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Circular Issue_Identification: C 1016 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: p. 54-56 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/13414 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/16330 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Blodgett and others, 1988 Source_Contribution: This report contains fossil data and a description of the Lost Creek units (Ss and Sl). Source_Information: Source_Citation: Citation_Information: Originator: Clough, J.G. Originator: Goldhammer, R.K. Publication_Date: 2000 Title: Evolution of the neoproterozoic Katakturuk Dolomite ramp complex, northeastern Brooks Range, Alaska Geospatial_Data_Presentation_Form: Report Larger_Work_Citation: Citation_Information: Originator: J.P. Grotzinger, ed. Originator: N.P. James, ed. Publication_Date: 2000 Title: Carbonate Sedimentation and Diagenesis in the Evolving Precambrian World Geospatial_Data_Presentation_Form: Report Publication_Information: Publication_Place: Tulsa, Oklahoma Publisher: SEPM Special Publication Other_Citation_Details: SEPM Special Publication, no. 67, p. 209-241 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Clough and Goldhammer, 2000 Source_Contribution: This report contains a detailed description of the Katakturuk Dolomite, which may be facies equivalent to the Amy Creek assemblage. Source_Information: Source_Citation: Citation_Information: Originator: Gergen, L.D. Originator: Decker, J.E. Originator: Plafker, George Publication_Date: 1988 Title: A comparative petrologic study of sandstone from the Wilber Creek, Cascaden Ridge, and Wickersham units in the Livengood Quadrangle Geospatial_Data_Presentation_Form: Report Larger_Work_Citation: Citation_Information: Originator: J.P. Galloway, ed. Originator: T.D. Hamilton, ed. Publication_Date: 1988 Title: Geological Studies in Alaska by the U.S. Geological Survey during 1987 Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Circular Issue_Identification: C 1016 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: p. 57-60 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/13414 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/16331 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Gergen and others, 1988 Source_Contribution: This report contains a discussion of depositional environments for the Wilber Creek, Cascaden Ridge, and Wickersham units based on clast composition, characteristics, and modal analysis. Source_Information: Source_Citation: Citation_Information: Originator: Péwé, T.L. Publication_Date: 1975 Title: Quaternary geology of Alaska Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Professional Paper Issue_Identification: P 835 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: 145 p. Online_Linkage: http://www.dggs.alaska.gov/pubs/id/3962 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1975 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Péwé, 1975 Source_Contribution: This report contains a description of the Pleistocene fauna uncovered in Lillian Creek. Source_Information: Source_Citation: Citation_Information: Originator: Karl, S.M. Originator: Ager, T.A. Originator: Hanneman, Karl Originator: Teller, S.D. Publication_Date: 1988 Title: Tertiary gold-bearing gravel at Livengood, Alaska Geospatial_Data_Presentation_Form: Report Larger_Work_Citation: Citation_Information: Originator: J.P. Galloway, ed. Originator: T.D. Hamilton, ed. Publication_Date: 1988 Title: Geological Studies in Alaska by the U.S. Geological Survey during 1987 Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Circular Issue_Identification: C 1016 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: p. 61-63 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/13414 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/16332 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Karl and others, 1988 Source_Contribution: This report contains a description of unconsolidated sedimentation in Livengood valley and a Tertiary pollen age from Livengood Bench. Source_Information: Source_Citation: Citation_Information: Originator: Loney, R.A. Originator: Himmelberg, G.R. Publication_Date: 1988 Title: Ultramafic rocks of the Livengood Terrane Geospatial_Data_Presentation_Form: Report Larger_Work_Citation: Citation_Information: Originator: J.P. Galloway, ed. Originator: T.D. Hamilton, ed. Publication_Date: 1988 Title: Geologic studies in Alaska by the U.S. Geological Survey during 1987 Geospatial_Data_Presentation_Form: Report Series_Information: Series_Name: Circular Issue_Identification: Circ. 1016 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: p. 68-70 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/13414 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/16361 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Loney and Himmelberg, 1988 Source_Contribution: This report contains a description of the ophiolite assemblage and addresses the nature of the contact between the mafic and ultramafic rocks and the Cascaden Ridge sedimentary rock unit (Dc). Source_Information: Source_Citation: Citation_Information: Originator: Moore, T.E. Publication_Date: 1987 Title: Geochemistry and tectonic setting of some volcanic rocks of the Franklinian assemblage, central and eastern Brooks Range Geospatial_Data_Presentation_Form: Report Larger_Work_Citation: Citation_Information: Originator: Irv Tailleur, ed. Originator: Paul Weimer, ed. Publication_Date: 1987 Title: Alaskan North Slope Geology, Volume II Geospatial_Data_Presentation_Form: Report Publication_Information: Publication_Place: Fullerton, California Publisher: SEPM, Pacific Section, California and Alaska Geological Society Other_Citation_Details: p. 691-710 Type_of_Source_Media: Report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1987 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Moore, 1987 Source_Contribution: This report contains a trace-element-indicated tectonic setting of within-plate for the volcanic rocks associated with the Katakturuk Dolomite. The volcanic rocks and Katakturuk Dolomite may be equivalent to the Amy Creek assemblage in the map area. Source_Information: Source_Citation: Citation_Information: Originator: Weber, F.R. Originator: Wheeler, K.L. Originator: Dover, J.H. Originator: Rinehart, C.D. Originator: Blodgett, R.B. Originator: Cady, J.W. Originator: Karl, S.M. Originator: McCammon, R.B. Originator: Miyaoka, R. Publication_Date: 1988 Title: Geologic framework Geospatial_Data_Presentation_Form: Map Larger_Work_Citation: Citation_Information: Originator: Weber, F.R. , ed. Originator: McCammon, R.B., ed. Originator: Rinehart, C.D. , ed. Originator: Light, T.D., ed. Originator: Wheeler, K.L. , ed. Publication_Date: 1988 Title: Geology and mineral resources of the White Mountains National Recreation Area, east-central Alaska Geospatial_Data_Presentation_Form: Map Series_Information: Series_Name: Open-File Report Issue_Identification: OF 88-284 Publication_Information: Publication_Place: Washington, DC, USA Publisher: U.S. Geological Survey Other_Citation_Details: p. 4-58 Online_Linkage: http://www.dggs.alaska.gov/pubs/id/11727 Type_of_Source_Media: Report, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Weber and others, 1988 Source_Contribution: This report contains detailed unit descriptions of geologic units in the southern Livengood Quadrangle that may correlate with geologic units in the map area. Source_Information: Source_Citation: Citation_Information: Originator: Division of Geological & Geophysical Surveys Publication_Date: 1973 Title: Unpublished miscellaneous geologic mapping of trenches and streams in the Livengood area Geospatial_Data_Presentation_Form: Map Other_Citation_Details: Unpublished information, thought to be authored by Eakins, G.R. and Foster, R.L. Type_of_Source_Media: Atlas Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1973 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: DGGS, 1973 Source_Contribution: This collection of maps contains unpublished trench and stream mapping that was incorporated into this study. Eakins's name appears on some of the work and he is assumed to be an author. Written correspondence from 1973 indicates that Eakins invited Foster to work on the project, and that Foster agreed to take part in the field work. It is unknown if Foster did contribute to this mapping. Other unknown persons may also have contributed to the mapping effort. Source_Information: Source_Citation: Citation_Information: Originator: Freeman, C.J. Originator: Kulash, William Originator: Wolf, Ken Originator: McCoy, Dan Originator: Wietchy, D.M. Publication_Date: 1997 Title: Summary report for the Tolovana Gold project, Livengood-Tolovana mining district, Alaska Geospatial_Data_Presentation_Form: Report Other_Citation_Details: Unpublished report for Placer Dome U.S. Inc. Type_of_Source_Media: Report, tabular data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Freeman and others, 1997 Source_Contribution: This report contains a summary history of industry exploration in the Livengood area and geologic information. Bedrock unit information determined from drill hole samples in the Livengood valley was incorporated into this study. Source_Information: Source_Citation: Citation_Information: Originator: Minehane, D.L. Originator: Rogers, J.A. Publication_Date: 1997 Title: 1997 Tolovana project report, Livengood, central-Interior Alaska Geospatial_Data_Presentation_Form: Report, vector digital data Other_Citation_Details: Placer Dome Exploration, unpublished report Source_Scale_Denominator: 10000 Type_of_Source_Media: Report, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Minehane and Rogers, 1997 Source_Contribution: This report contains geologic information, project information such as drill hole locations, and associated samples of drill core that was incorporated into this study. Source_Information: Source_Citation: Citation_Information: Originator: Morrison, P.R. Publication_Date: 1990 Title: Plate V. Geologic cross-section A-A', in Money Knob summary report Geospatial_Data_Presentation_Form: Map Other_Citation_Details: Amax Gold Inc., unpublished report Source_Scale_Denominator: 240 Type_of_Source_Media: Map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1990 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Morrison, 1990 Source_Contribution: This map contains a cross section of two drill holes collared near the junction of Lillian Creek and the old Elliott Highway. Source_Information: Source_Citation: Citation_Information: Originator: University of Alaska Fairbanks geologic field camp Publication_Date: 2001 Title: Unpublished data from University of Alaska-Fairbanks field camp Geospatial_Data_Presentation_Form: Map Other_Citation_Details: Unpublished field map created by the University of Alaska Fairbanks field camp, 2001, 1 sheet, scale 1:100,000 Source_Scale_Denominator: 100000 Type_of_Source_Media: Map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2001 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: UAF geologic field camp, 2001 Source_Contribution: This map shows geologic contacts and generalized units and was used as a general geologic guide to the area. Source_Information: Source_Citation: Citation_Information: Originator: USGS Publication_Date: 1997 Title: Digital Raster Graphic (DRG), Livengood C-3 Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Reston, VA, USA Publisher: USGS Online_Linkage: http://agdc.usgs.gov/data/usgs/geodata/drg/temp/drglist_L.html Source_Scale_Denominator: 63360 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: Ground Condition Source_Citation_Abbreviation: U.S. Geological Survey, Digital Raster Graphic (DRG), Livengood C-3 Source_Contribution: This topography was used in the publication as a base for the sample location points. This topography appears as a transparent overlay on the printed geologic maps. Source_Information: Source_Citation: Citation_Information: Originator: USGS Publication_Date: 1997 Title: Digital Raster Graphic (DRG), Livengood C-4 Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Reston, VA, USA Publisher: USGS Online_Linkage: http://agdc.usgs.gov/data/usgs/geodata/drg/temp/drglist_L.html Source_Scale_Denominator: 63360 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: Ground Condition Source_Citation_Abbreviation: U.S. Geological Survey, Digital Raster Graphic (DRG), Livengood C-4 Source_Contribution: This topography was used in the publication as a base for the sample location points. This topography appears as a transparent overlay on the printed geologic maps. Process_Step: Process_Description: Field work - During the summer of 2003 DGGS conducted a geologic field mapping project to provide geologic ground truth for airborne geophysical surveys flown in the Livengood area in 1999 (DGGS and others, 1999). DGGS efforts are focused on determining the geologic framework of the Livengood area, and its potential for placer gold and lode mineral deposits. Field work for bedrock investigations, including ridge traverses and examination of riverbank exposures, was conducted for approximately 90 person-days during the months of May through August 2003 and 5 person-days in July 2001. Field notes and rock samples were collected at approximately 1,100 stations throughout the Livengood Quadrangle. Plots of airborne magnetic and resistivity data (DGGS and others, 1999) overlain with standard USGS raster topography were used daily in the field to help identify geologic contacts, units, and faults. At most field stations, magnetic susceptibility data were collected to help identify magnetic units. Bedrock mappers recorded observations on 1:50,000-scale topographic base maps of 15-minute quadrangles that were enlarged from a scale of 1:63,360. In the evenings, each geologist's observations were compiled onto a single mylar base map. Field stations were located using handheld Garmin 12XL GPS units. Field station notes and downloaded GPS location data were entered into a Microsoft Access 2000 database. Geologic information from relevant literature, mineral industry, and historical accounts was incorporated into the data generated from field work. Source_Used_Citation_Abbreviation: Albanese, 1983 Source_Used_Citation_Abbreviation: Allegro, 1984 Source_Used_Citation_Abbreviation: Blodgett, 1992 Source_Used_Citation_Abbreviation: Brosgé and others, 1969 Source_Used_Citation_Abbreviation: Bundtzen, 1983 Source_Used_Citation_Abbreviation: Chapman and others, 1980 Source_Used_Citation_Abbreviation: DGGS and others, 1999 Source_Used_Citation_Abbreviation: Foster, 1966 Source_Used_Citation_Abbreviation: Freeman, 2003 Source_Used_Citation_Abbreviation: Hanneman, 1998 Source_Used_Citation_Abbreviation: Hite, 1977 Source_Used_Citation_Abbreviation: Joesting, 1941 Source_Used_Citation_Abbreviation: Lister and Snoke, 1984 Source_Used_Citation_Abbreviation: Mertie, 1917 Source_Used_Citation_Abbreviation: Newberry and Haug, 1997 Source_Used_Citation_Abbreviation: Reifenstuhl and others, 1998 Source_Used_Citation_Abbreviation: Reifenstuhl and others, 1997 Source_Used_Citation_Abbreviation: Robinson, 1983 Source_Used_Citation_Abbreviation: Saunders, 1955 Source_Used_Citation_Abbreviation: Smith, 1983 Source_Used_Citation_Abbreviation: Weber and others, 1994 Source_Used_Citation_Abbreviation: Weber and others, 1985 Source_Used_Citation_Abbreviation: Weber and others, 1992 Source_Used_Citation_Abbreviation: Wheeler and Weber, 1988 Source_Used_Citation_Abbreviation: Wilson and others, 1998 Source_Used_Citation_Abbreviation: Blodgett and others, 1988 Source_Used_Citation_Abbreviation: Clough and Goldhammer, 2000 Source_Used_Citation_Abbreviation: Gergen and others, 1988 Source_Used_Citation_Abbreviation: Karl and others, 1988 Source_Used_Citation_Abbreviation: Péwé, 1975 Source_Used_Citation_Abbreviation: Loney and Himmelberg, 1988 Source_Used_Citation_Abbreviation: Moore, 1987 Source_Used_Citation_Abbreviation: Weber and others, 1988 Source_Used_Citation_Abbreviation: DGGS, 1973 Source_Used_Citation_Abbreviation: Freeman and others, 1997 Source_Used_Citation_Abbreviation: Minehane and Rogers, 1997 Source_Used_Citation_Abbreviation: Morrison, 1990 Source_Used_Citation_Abbreviation: UAF geologic field camp, 2001 Source_Used_Citation_Abbreviation: U.S. Geological Survey, Digital Raster Graphic (DRG), Livengood C-3 Source_Used_Citation_Abbreviation: U.S. Geological Survey, Digital Raster Graphic (DRG), Livengood C-4 Process_Date: 2003 Process_Step: Process_Description: Laboratory data - During this project, 50 rock samples were collected for whole rock (major- and minor-oxides, and petrogenetically important trace-elements) analysis and 54 rock samples were collected for geochemical trace-element analysis (Athey and others, 2004b). Analytical data were used to aid interpretation and development of the geologic map and evaluation of the area's mineral potential. To further geologic understanding of the area, igneous and metamorphic rock samples were selected for whole-rock geochemical analysis. Results from major-oxide and trace-element geochemistry of igneous and metamorphic rocks were used to classify rocks according to established petrologic nomenclature. To help evaluate the area's mineral resource potential, rocks that were either visibly mineralized, or had features that suggested the potential to be mineralized, were analyzed for geochemical trace elements. Unweathered or minimally weathered rock samples were preferentially selected for analysis. Details about the analyses are found in the source publications. Petrography and modal analyses on more than 154 thin sections, and modal analysis of approximately 57 rock slabs stained for potassium feldspar, were also used to classify rocks according to established petrologic nomenclature. Geochronologic information was obtained by the 40Ar/39Ar and K-Ar methods in order to determine the age of geologic units in the map area as well as the age of sericite alteration spatially associated with gold-bearing, arsenopyrite-altered intrusive rock at the Old Smoky prospect in the Livengood C-4 Quadrangle (Athey and others, 2004a). See text and "Source_Information" section for further details about the analyses. One Sm-Nd analysis is in process. Microfossil and megafossil information was obtained by the study of hand samples, thin sections, slabs, and residue from dissolved carbonate. Source_Used_Citation_Abbreviation: Athey and others, 2004a Source_Used_Citation_Abbreviation: Athey and others, 2004b Source_Used_Citation_Abbreviation: Irvine and Baragar, 1971 Source_Used_Citation_Abbreviation: Rinehart and others, 1997 Process_Date: 2004 Process_Step: Process_Description: Digital Cartography - The final compilation of the bedrock geologic map data on mylar was scanned as a high-resolution tiff file. The files were imported into MapInfo Professional 7.5, and geographically registered in UTM coordinates (see spatial reference information section below). Geologic polygons were digitized 'on-screen' by tracing geologic contacts; each polygon was attributed with appropriate supporting information. The geologic polygon and line layers were imported into ArcGIS 8.3 geodatabase format using ArcTools and ArcCatalog 8.3. Spatially registered point data for the map were made in MapInfo Professional 6.5 and 7.5 from Microsoft Excel and Access 2000 files and converted into ArcGIS 8.3 geodatabase format using ArcTools and ArcCatalog 8.3. Editing and quality control checks took place at every process step. Final geologic feature and attribute editing was completed in ArcGIS 8.3. Map text was created in Microsoft Word. All final map layout and editing was accomplished in CorelDRAW 10.0. Source_Used_Citation_Abbreviation: U.S. Geological Survey, Digital Raster Graphic (DRG), Livengood C-3 Source_Used_Citation_Abbreviation: U.S. Geological Survey, Digital Raster Graphic (DRG), Livengood C-4 Process_Date: 2004 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000032 Ordinate_Resolution: 0.000032 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lvg_ages Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000064 Ordinate_Resolution: 0.000064 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lvg_fossils Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000032 Ordinate_Resolution: 0.000032 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lvg_structure Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000005 Ordinate_Resolution: 0.000005 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: PD_97TLdh Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000032 Ordinate_Resolution: 0.000032 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lvg_foldsymbols Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000032 Ordinate_Resolution: 0.000032 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lvg_faultsymbols Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000005 Ordinate_Resolution: 0.000005 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lvg_dikeoriented Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000032 Ordinate_Resolution: 0.000032 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lvg_dikes Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000005 Ordinate_Resolution: 0.000005 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lvg_industrydikes Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000032 Ordinate_Resolution: 0.000032 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lvg_xsectlines Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000064 Ordinate_Resolution: 0.000064 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: livfold_polyline Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000064 Ordinate_Resolution: 0.000064 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: bedcont Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000233 Ordinate_Resolution: 0.000233 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lvgborder Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000007 Ordinate_Resolution: 0.000007 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lvgshtdk Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000029 Ordinate_Resolution: 0.000029 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: lmst Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000233 Ordinate_Resolution: 0.000233 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: bedpolys Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lvg_ages Entity_Type_Label: lvg_ages.shp Entity_Type_Definition: Object type is point, there are 13 rows associated with this entity, and the entity values refer to locations and information pertaining to radiometric ages Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: SAMPLENO Attribute_Definition: Generic example of unique sample identifier: YearAAA999X: Year=4 digit year of sample collection, AAA=geologist's initials (one to three characters), 999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials are: MBW - Melanie Werdon, RN - Rainer Newberry, Z - Dave Szumigala. See attributes "AR_REF" and "OTHER_REF" for source citation of information on sample numbers not in this format. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others (see reference attribute information) Attribute_Domain_Values: Unrepresentable_Domain: Unique sample identifier Attribute: Attribute_Label: MAPNO Attribute_Definition: Symbol identifying sample location on map. Attribute_Definition_Source: This report Attribute_Domain_Values: Unrepresentable_Domain: Unique identifier for each sample. Letters correspond to sample type: A = Ar/Ar, K = K/Ar, S = Sm/N Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: Location of sample is outside of map area and not shown on map Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: EASTING Attribute_Definition: Easting Attribute_Definition_Source: UTM Zone 6, NAD 27 (see Spatial_Reference_Information) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 421700 Range_Domain_Maximum: 434278 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: NORTHING Attribute_Definition: Northing Attribute_Definition_Source: UTM Zone 6, NAD 27 (see Spatial_Reference_Information) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7261024 Range_Domain_Maximum: 7268767 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: ABBREV Attribute_Definition: Abbreviation of bedrock unit in which the sample was located Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cgs Enumerated_Domain_Value_Definition: GREENSTONE Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cmg Enumerated_Domain_Value_Definition: METAGABBRO Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cmg(?) Enumerated_Domain_Value_Definition: METAGABBRO? Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kmk Enumerated_Domain_Value_Definition: MONEY KNOB PLUTON Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: lPzZmb Enumerated_Domain_Value_Definition: AMY CREEK METABASALT Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tl Enumerated_Domain_Value_Definition: LAMPROPHYRE DIKE Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ka Enumerated_Domain_Value_Definition: MONZONITE TO SYENITE DIKES Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute: Attribute_Label: MINERAL Attribute_Definition: Mineral or whole rock sample analyzed for age determination Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Unrepresentable_Domain: Mineral or whole rock sample analyzed for age determination Attribute: Attribute_Label: ARAR_AGE Attribute_Definition: Best age determined by 40Ar/39Ar method; see "AGE_TYPE" attribute information for method of age calculation Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Unrepresentable_Domain: Age of sample with 1-sigma error in units 'millions of years ago' (Ma); one sample was analyzed twice Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: Age not determined by 40Ar/39Ar method Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: AGE_TYPE Attribute_Definition: Method used to calculate the best 40Ar/39Ar age Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: integrated Enumerated_Domain_Value_Definition: Integrated age determined from total gas measured, equivalent to potassium-argon (K-Ar) age Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: plateau Enumerated_Domain_Value_Definition: Plateau age defined as three or more gas fractions, with a Mean Standard Weighted Deviation (MSWD) < ~2.5, and with more than 50% 39Ar released Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: Age not determined by 40Ar/39Ar method Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: OTHER_AGE Attribute_Definition: Age determined by K-Ar or Sm-Nd method Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Unrepresentable_Domain: Age of sample with 1-sigma error in units 'millions of years ago' (Ma) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: Age not determined by K-Ar or Sm-Nd method Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: ROCK_TYPE Attribute_Definition: Description of sample collected for dating Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Unrepresentable_Domain: Sample description Attribute: Attribute_Label: AR_REF Attribute_Definition: References for 40Ar/39Ar data, see Source information Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others (see Source information) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Athey and others, 2004a Enumerated_Domain_Value_Definition: Reference for collection of Livengood Quadrangle 40Ar/39Ar and K-Ar age data Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys (see Source information) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: This study Enumerated_Domain_Value_Definition: Work conducted for this study; raw data not published in Athey and others (2004a) Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: No reference, age not from 40Ar/39Ar data Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: OTHER_REF Attribute_Definition: References for K-Ar and Sm-Nd data, see Source information Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others (see Source information) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Rinehart and others, 1997 Enumerated_Domain_Value_Definition: Reference for K-Ar data Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: This study Enumerated_Domain_Value_Definition: Sm-Nd date is in process Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: No reference, age not from K-Ar or Sm-Nd data Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lvg_fossils Entity_Type_Label: lvg_fossils.shp Entity_Type_Definition: Object type is point, there are 24 rows associated with this entity, and the entity values refer to information pertaining to fossil localities Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: SAMPLE Attribute_Definition: Generic example of unique sample identifier: YearAAA999X: Year=4 digit year of sample collection, AAA=geologist's initials (one to three characters), 999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials are: MBW - Melanie Werdon, RN - Rainer Newberry, Z - Dave Szumigala, LF - Larry Freeman. See reference for information on sample numbers not in this format. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others (see reference attribute information) Attribute_Domain_Values: Unrepresentable_Domain: Unique sample identifier Attribute: Attribute_Label: MAPNO Attribute_Definition: Symbol identifying fossil location on map Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Unique map number for each sample Attribute: Attribute_Label: EASTING Attribute_Definition: Easting Attribute_Definition_Source: UTM Zone 6, NAD 27 Alaska (see Spatial_Reference_Information) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 419133 Range_Domain_Maximum: 442526 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: NORTHING Attribute_Definition: Northing Attribute_Definition_Source: UTM Zone 6, NAD 27 Alaska (see Spatial_Reference_Information) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7263542 Range_Domain_Maximum: 7278410 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: MEGAFOSSIL Attribute_Definition: Description of type of megafossil identified Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Unrepresentable_Domain: Description of megafossil Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: Sample was not examined for megafossils Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: IDENT Attribute_Definition: Analyst or agency who identified the megafossil Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: DGGS Enumerated_Domain_Value_Definition: Personnel from Alaska Division of Geological & Geophysical Surveys Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Blodgett, R.B. Enumerated_Domain_Value_Definition: U.S. Geological Survey, 4200 University Drive, Anchorage, Alaska 99508 Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: Sample was not examined for megafossils Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: AGE Attribute_Definition: Age of identified macrofossil Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Unrepresentable_Domain: Geologic age of identified macrofossil Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: No macrofossils were identified in order to provide an age Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: MICROFOSSI Attribute_Definition: Description of type of microfossil identified in hand sample, thin section, or leached-carbonate residue Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Unrepresentable_Domain: Description of microfossil Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: Samples were not examined for microfossils Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: IDENT0 Attribute_Definition: Analyst who identified microfossil Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: C.D. Blome Enumerated_Domain_Value_Definition: See source Weber and others, 1994 Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: DGGS Enumerated_Domain_Value_Definition: Personnel from Alaska Division of Geological & Geophysical Surveys Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Weber, F.R. Enumerated_Domain_Value_Definition: See source Weber and others, 1994 Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: N.M. Savage Enumerated_Domain_Value_Definition: Department of Geological Sciences, 1272 University of Oregon, Eugene, Oregon 97403-1272 Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Blodgett, R.B. Enumerated_Domain_Value_Definition: U.S. Geological Survey, 4200 University Drive, Anchorage, Alaska 99508 Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: Samples were not examined for microfossils Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: AGE0 Attribute_Definition: Age of identified microfossil Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Unrepresentable_Domain: Geologic age of microfossils Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: No microfossils were identified in order to provide an age Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: ROCK_TYPE Attribute_Definition: Sample description of fossil-bearing rock Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Unrepresentable_Domain: Sample description Attribute: Attribute_Label: REFERENCE Attribute_Definition: Megafossil or microfossil references; see Source_Information Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others (see Source information) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Blodgett, 1992 Enumerated_Domain_Value_Definition: Fossil reference Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: This study Enumerated_Domain_Value_Definition: Samples collected during this study Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Weber and others, 1994 Enumerated_Domain_Value_Definition: Fossil reference Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: ABBREV Attribute_Definition: Bedrock units from which fossil samples were collected; C designates Cambrian age Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cwl Enumerated_Domain_Value_Definition: METAGABBRO Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Dc Enumerated_Domain_Value_Definition: METAGABBRO Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Old Enumerated_Domain_Value_Definition: MONEY KNOB PLUTON Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sl Enumerated_Domain_Value_Definition: AMY CREEK METABASALT Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ss Enumerated_Domain_Value_Definition: LAMPROPHYRE DIKE Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: lPzZd Enumerated_Domain_Value_Definition: MONZONITE TO SYENITE DIKES Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: lPzZmc Enumerated_Domain_Value_Definition: AMY CREEK SILICEOUS MUDSTONE AND CHERT Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lvg_structure Entity_Type_Label: lvg_structure.shp Entity_Type_Definition: Object type is point, there are 120 rows associated with this entity, and the entity values refer to bedding and foliation orientation data Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: SAMPLENO Attribute_Definition: Generic example of unique sample identifier: YearAAA999X: Year=4 digit year of sample collection, AAA=geologist's initials (one to three characters), 999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials are: MBW - Melanie Werdon, JEA - Jennifer Athey, RN - Rainer Newberry, Z - Dave Szumigala, LF - Larry Freeman. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Unique sample identifier. Attribute: Attribute_Label: EASTING Attribute_Definition: UTM Zone 6, NAD 27 (see Spatial_Reference_Information) Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 419404 Range_Domain_Maximum: 441636 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: NORTHING Attribute_Definition: UTM Zone 6, NAD 27 (see Spatial_Reference_Information) Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7265210 Range_Domain_Maximum: 7278083 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: STRIKE Attribute_Definition: Strike of plane in "Right-hand rule", where north is 0 and degrees increase clockwise to 360, always 90 degrees counter-clockwise from dip direction Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 350 Attribute_Units_of_Measure: degrees Attribute: Attribute_Label: DIP Attribute_Definition: Degrees that a plane is inclined relative to horizontal, horizontal being 0 degrees, vertical being 90 degrees; always 90 degrees clockwise from strike Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 90 Attribute_Units_of_Measure: degrees Attribute: Attribute_Label: STRUCTURE Attribute_Definition: Type of structure to which the orientation data apply Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: foliation Enumerated_Domain_Value_Definition: Foliation Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: vertical foliation Enumerated_Domain_Value_Definition: Vertical foliation Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: bedding Enumerated_Domain_Value_Definition: Bedding Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: vertical bedding Enumerated_Domain_Value_Definition: Vertical bedding Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: Quadrant Attribute_Definition: Obsolete - This was a necessary field for programmatic placment of dip numbers around the structure symbol Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 4 Attribute_Units_of_Measure: degrees Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: PD_97TLdh Entity_Type_Label: PD_97TLdh.shp Entity_Type_Definition: Object type is point, there are 9 rows associated with this entity, and the entity values refer to diamond drill hole locations from Placer Dome Exploration, Inc.'s 1997 Tolovana project Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: EASTING Attribute_Definition: Easting Attribute_Definition_Source: UTM Zone 6, NAD 27 Alaska (see Spatial_Reference_Information) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 427625 Range_Domain_Maximum: 433265 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: NORTHING Attribute_Definition: Northing Attribute_Definition_Source: UTM Zone 6, NAD 27 Alaska (see Spatial_Reference_Information) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7265475 Range_Domain_Maximum: 7269377 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: PD_HOLE Attribute_Definition: Placer Dome Exploration, Inc. drill hole number Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others (see Source information "Minehane and Rogers, 1997") Attribute_Domain_Values: Unrepresentable_Domain: Unique number Attribute: Attribute_Label: LOC_NOTE Attribute_Definition: Originator and information pertaining to location data Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others (see Source information) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: DGGS estimate Enumerated_Domain_Value_Definition: Location estimated from Placer Dome Exploration, Inc. notes stating the 97-TL6 collar is near the junction of Amy and Lucille creeks, and the bedrock at the location was siliceous dolomite Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: GPS location by DGGS Enumerated_Domain_Value_Definition: Collar located in the field by DGGS and location measured with a Garmin 12XL GPS Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Minehane and Rogers, 1997 Enumerated_Domain_Value_Definition: Collar location estimated from Placer Dome Exploration, Inc. 1997 Tolovana project map; see Source information Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lvg_foldsymbols Entity_Type_Label: lvg_foldsymbols.shp Entity_Type_Definition: Object type is point, there are 40 rows associated with this entity, and the entity values refer to symbols depicting fold types and orientations Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: TYPE Attribute_Definition: Type of fold symbol Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: anticline symbol Enumerated_Domain_Value_Definition: Anticline symbol Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: over anti symbol Enumerated_Domain_Value_Definition: Overturned anticline symbol Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: over syn symbol Enumerated_Domain_Value_Definition: Overturned syncline symbol Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: plunge symbol Enumerated_Domain_Value_Definition: Plunge direction of the fold Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: syncline symbol Enumerated_Domain_Value_Definition: Syncline symbol Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: PLUNGE Attribute_Definition: Number indicating angle of plunge measured or estimated downward from horizontal (if known) Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 50 Attribute_Units_of_Measure: degrees Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: Plunge is not recorded for this type of symbol Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lvg_faultsymbols Entity_Type_Label: lvg_faultsymbols.shp Entity_Type_Definition: Object type is point, there are 39 rows associated with this entity, and the entity values refer to symbols and text depicting fault information and relative fault movement Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: TYPE Attribute_Definition: Explanation of records in attribute "TEXT" Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: continuation of fault unk Enumerated_Domain_Value_Definition: '?' marks where the fault trace can no longer be mapped (aka 'unknown') Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: down-thrown Enumerated_Domain_Value_Definition: 'D' marks down-thrown side of fault Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: up-thrown Enumerated_Domain_Value_Definition: 'U' marks up-thrown side of fault Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: right lateral Enumerated_Domain_Value_Definition: Faults interpreted with right lateral movement Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: named fault Enumerated_Domain_Value_Definition: Prominent fault with name Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: MAP_TEXT Attribute_Definition: Map text for fault plane relative movement, uncertain continuation of faults, and named faults Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ? Enumerated_Domain_Value_Definition: Continuation of fault unknown Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: D Enumerated_Domain_Value_Definition: Down-thrown side of fault Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: U Enumerated_Domain_Value_Definition: Up-thrown side of fault Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MYRTLE CREEK FAULT Enumerated_Domain_Value_Definition: Myrtle Creek Fault Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: VICTORIA CREEK FAULT Enumerated_Domain_Value_Definition: Victoria Creek Fault Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Null Enumerated_Domain_Value_Definition: No text string is necessary for this record Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lvg_dikeoriented Entity_Type_Label: lvg_dikeoriented.shp Entity_Type_Definition: Object type is vector, there are 5 rows associated with the entity, and the entity values refer to dikes with measured strike or trend Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: SAMPLENO Attribute_Definition: Generic example of unique sample identifier: YearAAA999X: Year=4 digit year of sample collection, AAA=geologist's initials (one to three characters), 999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials are: MBW - Melanie Werdon, RN - Rainer Newberry Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Unique sample identifier. Attribute: Attribute_Label: EASTING Attribute_Definition: UTM Zone 6, NAD 27 Alaska (see Spatial_Reference_Information) Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 429249 Range_Domain_Maximum: 434090 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: NORTHING Attribute_Definition: UTM Zone 6, NAD 27 Alaska (see Spatial_Reference_Information) Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7264828 Range_Domain_Maximum: 7267650 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: TREND Attribute_Definition: Angle of strike of dike, strike and dip recorded using "right-hand rule"; trend recorded where strike is unmeasurable; trend recorded in horizontal plane of dip-direction; see Attribute "Note" for further explanation of data Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 300 Attribute_Units_of_Measure: degrees Attribute: Attribute_Label: DIP_PLUNGE Attribute_Definition: Dip of the dike (if known), no "0" degree horizontal sills in this dataset - see Attribute "Note" for further explanation of data Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 58 Range_Domain_Maximum: 90 Attribute_Units_of_Measure: degrees Attribute: Attribute_Label: NOTES Attribute_Definition: Further explanation of dike orientation data. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Strike of dike with fixed-length line indicating orientation; point location of measurement indicated by easting and northing Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: Trend of dike where strike and dip cannot be measured, fixed-length line indicating orientation; point location of measurement indicated by easting and northing Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lvg_dikes Entity_Type_Label: lvg_dikes.shp Entity_Type_Definition: Object type is point, there are 47 rows associated with this entity, and the entity values refer to dike locations and compositions from DGGS mapping Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: SAMPLENO Attribute_Definition: Generic example of unique sample identifier: YearAAA999X: Year=4 digit year of sample collection, AAA=geologist's initials (one to three characters), 999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials are: MBW - Melanie Werdon, JEA - Jennifer Athey, RN - Rainer Newberry, Z - Dave Szumigala. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Unique sample identifier. Attribute: Attribute_Label: EASTING Attribute_Definition: UTM Zone 6, NAD 27 Alaska (see Spatial_Reference_Information) Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 421051 Range_Domain_Maximum: 434487 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: NORTHING Attribute_Definition: UTM Zone 6, NAD 27 Alaska (see Spatial_Reference_Information) Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7264828 Range_Domain_Maximum: 7269125 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: TYPE Attribute_Definition: Type of dike composition Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Olivine clinopyroxenite Enumerated_Domain_Value_Definition: Olivine clinopyroxenite Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Granite Enumerated_Domain_Value_Definition: Granite Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Lamprophyre Enumerated_Domain_Value_Definition: Lamprophyre Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Quartz monzodiorite Enumerated_Domain_Value_Definition: Quartz monzodiorite Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Quartz monzonite Enumerated_Domain_Value_Definition: Quartz monzonite Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Quartz syenite Enumerated_Domain_Value_Definition: Quartz syenite Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Syenite Enumerated_Domain_Value_Definition: Syenite Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Undifferentiated alkalic Enumerated_Domain_Value_Definition: Undifferentiated alkalic Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Undifferentiated calc alkalic Enumerated_Domain_Value_Definition: Undifferentiated calc alkalic Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Undifferentiated felsic Enumerated_Domain_Value_Definition: Undifferentiated felsic Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: UNIT Attribute_Definition: Bedrock unit associated with dike; "C" designates Cambrian age Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ka Enumerated_Domain_Value_Definition: MONZONITE TO SYENITE DIKES Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tl Enumerated_Domain_Value_Definition: LAMPROPHYRE DIKE Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cc Enumerated_Domain_Value_Definition: OLIVINE CLINOPYROXENITE DIKE Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ka Enumerated_Domain_Value_Definition: MONZONITE TO SYENITE DIKES Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: --- Enumerated_Domain_Value_Definition: Dike is equivalent to either unit Ka or Kc Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lvg_industrydikes Entity_Type_Label: lvg_industrydikes.shp Entity_Type_Definition: Object type is point, there are 43 rows associated with this entity, and the entity values refer to felsic rock sample locations from mineral industry data; location error varies between sources and is largely unknown but estimated to be between 10 m and 500 m; some samples were collected from colluvial units and may not represent underlying bedrock Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: EASTING Attribute_Definition: Easting Attribute_Definition_Source: UTM Zone 6, NAD 27 Alaska (see Spatial_Reference_Information) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 426936 Range_Domain_Maximum: 435924 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: NORTHING Attribute_Definition: Northing Attribute_Definition_Source: UTM Zone 6, NAD 27 Alaska (see Spatial_Reference_Information) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7264791 Range_Domain_Maximum: 7271164 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: REFERENCE Attribute_Definition: Source reference for the dikes Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and others (see Source information) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1981-1984 soil grid (E. Twelker); Hanneman, 1998 Enumerated_Domain_Value_Definition: See source information Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Freeman, 1997 Enumerated_Domain_Value_Definition: See source information Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Freeman, 2003 Enumerated_Domain_Value_Definition: See source information Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Hite, 1977 Enumerated_Domain_Value_Definition: See source information Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Minehane and Rogers, 1997 Enumerated_Domain_Value_Definition: See source information; some dikes may be from drill holes Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lvg_xsectlines Entity_Type_Label: lvg_xsectlines.shp Entity_Type_Definition: Object type is vector, there are 3 rows associated with this entity, and the entity values refer to cross section traces Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: XSECT Attribute_Definition: Letter identifying cross section on the map sheet, example A-A' Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: A Range_Domain_Maximum: C Attribute_Units_of_Measure: Alpha characters Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: livfold_polyline Entity_Type_Label: livfold_polyline.shp Entity_Type_Definition: Object type is vector, there are 30 rows associated with this entity, and the entity values refer to axial traces of folds Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: TYPE Attribute_Definition: Type of fold Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: anticline Enumerated_Domain_Value_Definition: Anticline Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: overanti Enumerated_Domain_Value_Definition: Overturned anticline Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: oversyn Enumerated_Domain_Value_Definition: Overturned syncline Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: syncline Enumerated_Domain_Value_Definition: Syncline Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: bedcont Entity_Type_Label: bedcont.shp Entity_Type_Definition: Object type is vector, there are 436 rows associated with this entity, and the entity values refer to stratigraphic, intrusive, and fault contacts Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: AGE Attribute_Definition: Petains to thrust faults (TYPE value 'Thrust'); "Permian" or "Early K", NULL = non-applicable Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Permian Enumerated_Domain_Value_Definition: Thrust faults with possible Permian movement; timing of Cambrian ophiolite assemblage emplacement over the lower Paleozoic to Late Proterozoic Amy Creek units may be constrained by 40Ar/39Ar ages reset to 200-250 Ma (Athey and others, 2004a) Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Early K Enumerated_Domain_Value_Definition: Thrust faults with possible Early Cretaceous movement; in the Money Knob area, the Cascaden Ridge sedimentary unit (Dc) is thrusted over the Cambrian ophiolite and Amy Creek assemblages. Emplacement of the Dc unit may be a later event, accommodating stresses related to compression of the Manley basin. Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Contacts with no movement or with an unknown age of movement Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: TYPE Attribute_Definition: Type of contact Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Thrust Enumerated_Domain_Value_Definition: Low-angle reverse fault; "Permian or Early K" Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Contact Enumerated_Domain_Value_Definition: Stratigraphic or intrusive contacts Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Contact ukn Enumerated_Domain_Value_Definition: Unconformable contact or thrust fault; regionally interpreted to be an unconformable contact (Foster, 1966; Weber and others, 1992); in the Money Knob area the contact is a thrust fault (this study) Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Fault Enumerated_Domain_Value_Definition: High-angle fault Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: strat/fault? Enumerated_Domain_Value_Definition: Contact or high-angle fault; regionally the contact between units PDs and Trg is interpreted as a high-angle fault (this study); in the map area, the relationship between unit TrDs and adjacent units Trg and PDs is unclear Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lvgborder Entity_Type_Label: lvgborder.shp Entity_Type_Definition: Object type is vector, there is 1 row associated with this entity, and the entity value refers to border of map area Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lvgshtdk Entity_Type_Label: lvgshtdk.shp Entity_Type_Definition: Object type is vector, there is 1 row associated with this entity, and the entity value refers to area containing an anomalously high number of undifferentiated felsic(?) igneous samples collected by the mineral industry; some samples were collected from colluvial units and may not represent underlying bedrock Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: lmst Entity_Type_Label: lmst.shp Entity_Type_Definition: Object type is vector, there are 5 rows associated with this entity, and the entity values refer to rare limestone within the Amy Creek dolomite unit (lPzZd) Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: Type Attribute_Definition: Type of bedrock Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Rock type is limestone Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: bedpolys Entity_Type_Label: bedpolys.shp Entity_Type_Definition: Object type is vector, there are 171 rows associated with this entity, and the entity values refer to bedrock geologic polygons Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: UNIT Attribute_Definition: bedrock unit labels; "C" designates Cambrian age Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cgs Enumerated_Domain_Value_Definition: GREENSTONE Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Clg Enumerated_Domain_Value_Definition: LAYERED METAGABBRO Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cmg Enumerated_Domain_Value_Definition: METAGABBRO Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cs Enumerated_Domain_Value_Definition: SERPENTINITE, METAGABBRO, AND GREENSTONE Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cwl Enumerated_Domain_Value_Definition: WICKERSHAM LIMESTONE Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CZwa Enumerated_Domain_Value_Definition: WICKERSHAM SHALE Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Dc Enumerated_Domain_Value_Definition: SANDSTONE, SHALE, AND CONGLOMERATE Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kmk Enumerated_Domain_Value_Definition: MONEY KNOB PLUTON Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ko Enumerated_Domain_Value_Definition: OLIVE CREEK PLUTON Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Krc Enumerated_Domain_Value_Definition: RUTH CREEK PLUTON Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. URL: http://dx.doi.org/10.14509/3308 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: lPzZd Enumerated_Domain_Value_Definition: AMY CREEK DOLOMITE AND LIMESTONE Enumerated_Domain_Value_Definition_Source: Athey, J.E., and Craw, P.A., 2004, Geologic maps of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3, 24 p. 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