Metadata: Identification_Information: Citation: Citation_Information: Originator: Hubbard, T.D. Originator: Reger, R.D. Publication_Date: 2010 Title: Engineering-geologic map of the Alaska Highway Corridor, Robertson River to Tetlin Junction, Alaska Geospatial_Data_Presentation_Form: map sheets, table and vector digital data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2009-6B Publication_Information: Publication_Place: Fairbanks, Alaska - USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 4 sheets, 1:63,360 scale Online_Linkage: http://dx.doi.org/10.14509/19742 Description: Abstract: The engineering-geologic map is derived electronically, using Geographic Information System (GIS) software, from the surficial-geologic map of the second segment of the proposed natural gas pipeline corridor through the upper Tanana valley, a 12-mi-wide (19.3-km-wide) area that straddles the Alaska Highway through the upper Tanana River valley from the Robertson River eastward to near Tetlin Junction in the Tanacross Quadrangle (Reger and Hubbard, PIR 2009-6A). Surficial-geologic units were initially identified by interpretation of false-color ~1:65,000-scale infrared aerial photographs taken in July 1978, August 1980, and August 1981 and locally verified by field checking in 2007 and 2008. The map shows the distribution of surficial-geologic and bedrock units grouped genetically with common properties that are typically significant for engineering applications. Purpose: This map is a part of ADGGS's Alaska Natural Gas Pipeline Geology and Geohazards project, mapping the geology, geohazards, and resources along the Alaska Highway between Robertson River and Tetlin Junction. The study was done in anticipation of the proposed natural gas pipeline along the Alaska Highway corridor, to further the geologic understanding of the area and, as a basis for evaluating geohazards and resources for proposed infrastructure. Supplemental_Information: The layers listed below are present as ArcGIS shape files. To enhance print quality, this publication utilized a vector topography data set. The topography data set is not included with this release. The DGGS metadata standard extends the FGDC standard to also include several elements that are required to facilitate our internal data management. These elements relate individual data items to a common dataset. Attribute information for the following layers (entities) is included in this metadata file under the "Entity_and_Attribute_Information" section. A codeset file titled, PIR2009-6B_codeset.pdf, contains the table explaining the properties of each engineering-geologic unit. There are two layers. Each layer is listed and described in detail under its own heading starting "Entity_Type_Label." Layers include: >eng_geol polygons of engineering-geologic map units >border outline shape of the study area Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 2008 Single_Date/Time: Calendar_Date: 2009 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -144.0000 East_Bounding_Coordinate: -142.5000 North_Bounding_Coordinate: 63.7415 South_Bounding_Coordinate: 63.1661 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Alluvial Deposits Theme_Keyword: Colluvial Deposits Theme_Keyword: Construction Materials Theme_Keyword: Crushed Gravel Theme_Keyword: Crushed Rock Theme_Keyword: Climate Change Theme_Keyword: Engineering Theme_Keyword: Engineering Geology Theme_Keyword: Floodplain Theme_Keyword: Floods Theme_Keyword: Gasline Theme_Keyword: Geologic Hazards Theme_Keyword: Geologic Map Theme_Keyword: Geologic Materials Theme_Keyword: Icings Theme_Keyword: Land Subsidence Theme_Keyword: Landslide Theme_Keyword: Liquefaction Theme_Keyword: Materials Site Theme_Keyword: Permafrost Theme_Keyword: Proposed Natural Gas Pipeline Theme_Keyword: Sand & Gravel Theme_Keyword: Subsidence Theme_Keyword: Surficial Geology Theme_Keyword: Transportation Corridor Theme_Keyword: Unconsolidated Deposits Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Alaska Highway Corridor Place_Keyword: Alaska Range Place_Keyword: Alaska, State of Place_Keyword: Dot Lake Place_Keyword: Robertson River Place_Keyword: Tanacross Place_Keyword: Tanacross Quadrangle Place_Keyword: Taylor Highway Place_Keyword: Tok Place_Keyword: Tok River Temporal: Temporal_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Temporal_Keyword: Pleistocene Temporal_Keyword: Quaternary Temporal_Keyword: Holocene Access_Constraints: This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below). Use_Constraints: Any hard copies 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. The 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. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Position: GIS Data Manager/Cartographer Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Contact_Voice_Telephone: (907) 451-5029 Contact_Voice_Telephone: (907) 451-5020 Contact_Facsimile_Telephone: (907) 451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Contact_Instructions: You may view our web site at http://www.dggs.alaska.gov for the latest information on available data.Please e-mail your questions and data requests when possible since our web site and e-mail address will remain current even if our phone number and mailing address change. Data_Set_Credit: This research was supported by Alaska State Capital Improvement Projects funding. The authors gratefully acknowledge the helpful review by De Anne Stevens, and able cartographic assistance by Patricia Gallagher, Garrett Speeter, Gail Davidson and Rachel Westbrook. Trent Hubbard was project manager during completion of the project. Field work and preparation for field work was carried out under the direction of Diana Solie. Her leadership was greatly appreciated. Native_Data_Set_Environment: Microsoft Windows XP SP2, ArcGIS 9.+ Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Hubbard, T.D. Originator: Carver, G.C. Publication_Date: 2011 Title: Surficial geology of Alaska Highway corridor, Robertson River to Tetlin Junction, Alaska Geospatial_Data_Presentation_Form: document, map sheets and vector digital data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2009-6A 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. 1:63,360 scale Online_Linkage: http://dx.doi.org/10.14509/19741 Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Hubbard, T.D. Publication_Date: 2010 Title: Reconnaissance interpretation of 1978-1983 permafrost, Alaska Highway Corridor, Robertson River to Tetlin Junction, Alaska Geospatial_Data_Presentation_Form: document, map sheets and vector digital data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2009-6C Publication_Information: Publication_Place: Fairbanks, Alaska - USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 4 sheets, 1:63,360 scale Online_Linkage: http://dx.doi.org/10.14509/19743 Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Stevens, D.S.P. Originator: Solie, D.N. Publication_Date: 2008 Title: Surficial-geologic map, Alaska Highway Corridor, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: documents, map sheets and vector digital data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3A Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/17961 Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Solie, D.N. Publication_Date: 2008 Title: Engineering-geologic map, Alaska Highway Corridor, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: document map sheets and vector digital data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3B Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/17981 Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Solie, D.N. Publication_Date: 2009 Title: Reconnaissance interpretation of permafrost, Alaska Highway Corridor, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: document, map sheets and vector digital data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3C 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., 2 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/17621 Cross_Reference: Citation_Information: Originator: Carver, G.A. Originator: Bemis, S.P. Originator: Solie, D.N. Originator: Castonguay, S.R. Originator: Obermiller, K.E. Publication_Date: 2010 Title: Active and potentially active faults in or near the AlaskaHighway Corridor, Dot Lake to Tetlin Junction, Alaska Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2010-1 Publication_Information: Publication_Place: Fairbanks, Alaska Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 42 p. Online_Linkage: http://dx.doi.org/10.14509/21121 Cross_Reference: Citation_Information: Originator: Carver, G.A. Originator: Bemis, S.P. Originator: Solie, D.N. Originator: Obermiller, K.E. Publication_Date: 200812 Title: Active and potentially active faults in or near the Alaska Highway corridor, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3D Publication_Information: Publication_Place: Fairbanks, Alaska Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 32 p. Online_Linkage: http://dx.doi.org/10.14509/17901 Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Hubbard, T.D. Publication_Date: 200910 Title: Evidence for late Wisconsinan outburst floods in the Tok-Tanacross Basin. upper Tanana River Valley, east-central Alaska (abs); Geological Society of America Abstracts with Programs Geospatial_Data_Presentation_Form: abstract Series_Information: Series_Name: Geological Society of America Abstracts with Programs Issue_Identification: vol. 41, No. 7 Publication_Information: Publication_Place: Boulder, CO Publisher: Geological Society of America Other_Citation_Details: p. 637 Cross_Reference: Citation_Information: Originator: Hubbard, T.D., Originator: Reger, R.D. Publication_Date: 201010 Title: Model for Late Wisconsinan Massive Outburst Flooding, Tok River Valley, Northeastern Alaska Range Geospatial_Data_Presentation_Form: abstract Series_Information: Series_Name: Geological Society of America Abstracts with Programs Issue_Identification: vol. 42, No. 5 Publication_Information: Publication_Place: Boulder, CO Publisher: Geological Society of America Other_Citation_Details: 703 p. Abstract on p. 310 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Surficial geology was initially mapped interpreting ~1:65,000-scale, false-color, infrared aerial photographs taken in July 1978, August 1980, and July 1983 and plotting unit boundaries on acetate overlays. Verification of photo mapping was accomplished during the 2008 field season. Engineering-geologic map units were derived from the surficial-geologic map (PIR 2009-6A). Physical properties of engineering-geologic map units are interpretive, based on extrapolation from verified localities and from previously published reports and data. Potential geologic hazards are inferred from the typical physical properties of map units, including sediment texture and ground-ice content, surface drainage, seasonal frost susceptibility, permafrost and thaw stability, slope stability, suitability for construction, potential engineering considerations and typical topographic settings. An engineering geologic map unit may include one or more surficial units but each surficial unit is only assigned to one engineering map unit. Except for a few test pits, no subsurface investigations or laboratory analyses were performed for this publication. The reader is cautioned that this map is intended only as a general guide, and that unevaluated geologic resources and hazards may be present. Detailed geotechnical investigations should be conducted prior to utilization of any map units for engineering purposes. The interpretations presented in this report have undergone two technical reviews by geologists familiar with the subject of the report and the geology of the map area. We incorporated the reviewer's suggestions into the final draft when deemed appropriate. Logical_Consistency_Report: All polygon features were derived from the surficial geologic map topology data set. These data were topologically validated using the ESRI ArcGIS 9+ .Polygon topology is present and clean and validated on the engineering geology data set using the ESRI ArcGIS 9+ software prior to export to shape file format. Completeness_Report: This dataset includes shapefiles that contain information about the mapped and interpreted engineering-geologic deposits in the map area distinguishable at a scale of 1:63,360. Subsurface data were not available for use in creating the shapefiles, other than about 10-15 soil pits dug to depths no more than 1.3 m, observations of exposures in gravel pits, highway cuts, and river banks, and drillhole data from geotechnical reports written by the Department of Transportation and Public Facilities for highway construction projects. No analytical tests were conducted for this report. The table describes engineering properties that are generally present in the mapped surficial deposits, but local variations and exceptions are most certainly to be expected. The reader is therefore cautioned that this map is intended only as a general guide, and that unevaluated geologic resources and hazards may be present. Detailed geotechnical investigations should be conducted prior to utilization of any map units for engineering purposes. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The engineering-geologic map units were derived from the surficial-geologic map (PIR 2009-6A). The surficial-geologic map contacts were first hand-drawn, using a magnifying stereoscope, onto acetate overlays registered to 1:50,000-scale (nominal) prints of digital aerial photographs. The horizontal accuracy of the surficial map unit boundary locations varies due to the scale and interpretive nature of the mapping, but is expected to be accurate to at least 15 m. The 400dpi digital air photos were orthorectified using OrthoMapper 3.6 with an RMS error generally constrained to be less than 4 pixels, equating to approximately 20 m on the ground, although some areas with rugged terrain have larger errors.The acetate overlays were individually scanned and orthorectified using OrthoMapper based on the same equations developed for generating the orthophotos. Map unit boundaries were digitized on-screen into ArcGIS from the orthorectified overlays at a scale of approximately 1:25,000, using a combination of a digital USGS topographic 1:63,360-scale map layer (DRG) and the orthophoto mosaic layer to verify the position of the lines. Total horizontal accuracy of the mapped surficial-geologic contacts is thus on the order of 25 m or better, with somewhat lesser accuracy expected in areas of rugged relief. Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 25 Horizontal_Positional_Accuracy_Explanation: mapped engineering-geologic contacts Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1948 Title: Tanacross A-4 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: scale 1:63,360 Source_Scale_Denominator: 63360 Type_of_Source_Media: All Topo software Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1948 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Tanacross A-4, 1948- minor revisions 1973 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1949 Title: Tanacross B-4 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: scale 1:63,360 Source_Scale_Denominator: 63360 Type_of_Source_Media: All Topo software Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1949 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Tanacross B-4, 1949- minor revisions 1994 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1948 Title: Tanacross B-5 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: scale 1:63,360 Source_Scale_Denominator: 63360 Type_of_Source_Media: All Topo software Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1948 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Tanacross B-5, 1948 minor revisions 1994 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1949 Title: Tanacross B-6 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: scake 1:63,360 Source_Scale_Denominator: 63360 Type_of_Source_Media: All Topo software Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1949 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Tanacross B-6, 1949 minor revisions 1970 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1955 Title: Tanacross C-6 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: scale 1:63,360 Source_Scale_Denominator: 63360 Type_of_Source_Media: All Topo software Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1955 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Tanacross C-6, 1955- minor revisions 1982 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: Kreig, R.A. Originator: Reger, R.D. Publication_Date: 1982 Title: Air-photo analysis and summary of landform soil properties along the route of the Trans-Alaska Pipeline System Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Geologic Report Issue_Identification: GR-66 Publication_Information: Publication_Place: Fairbanks, AK Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 149 p. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1982 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Kreig and Reger, 1982 Source_Contribution: Contains air-photo analysis and landform soil properties for trans-Alaska oil pipeline Source_Information: Source_Citation: Citation_Information: Originator: Pewe, T.L. Originator: Reger, R.D. Publication_Date: 1983 Title: Middle Tanana River valley Geospatial_Data_Presentation_Form: book chapter Series_Information: Series_Name: Guidebook Issue_Identification: GB 1 Publication_Information: Publication_Place: Fairbanks, AK Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: p. 5-42 Larger_Work_Citation: Citation_Information: Originator: Pewe, T.L. Originator: Reger, R.D. Publication_Date: 1983 Title: Guidebook to Permafrost and Quaternary Geology along the Richardson and Glenn Highways between Fairbanks and Anchorage, Alaska Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Guidebook Issue_Identification: GB 1 Publication_Information: Publication_Place: Fairbanks, AK Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 263 p., 1 sheet, scale 1:250,000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1983 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Pewe and Reger, 1983 Source_Contribution: Contains information about Quaternary geology of Tanana Valley Source_Information: Source_Citation: Citation_Information: Originator: Carter, L.D. Originator: Galloway, J.P. Publication_Date: 1978 Title: Preliminary engineering geologic maps of the proposed natural gas pipeline route in the Tanana River valley, Alaska Geospatial_Data_Presentation_Form: doc Series_Information: Series_Name: Open-file Report Issue_Identification: OFR 78-794 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 26 p., 3 map sheets, scale 1:125,000 Source_Scale_Denominator: 125000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1978 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Carter and Galloway, 1978 Source_Contribution: Engineering geologic maps at 1:125,000 Source_Information: Source_Citation: Citation_Information: Originator: Mason, O.K. Originator: Beget, J.E. Publication_Date: 1991 Title: Late Holocene flood history of the Tanana River, Alaska Geospatial_Data_Presentation_Form: journal article Publication_Information: Publication_Place: United States Publisher: Arctic and Alpine Research Other_Citation_Details: v. 23, no. 4, p. 392-403. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1991 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Mason and Beget, 1991 Source_Contribution: Holocene flooding in Tanana valley Source_Information: Source_Citation: Citation_Information: Originator: Yarie, John Originator: Viereck, Leslie Originator: Van Cleve, Keith Originator: Adams, Phyllis Publication_Date: 1998 Title: Flooding and ecosystem dynamics along the Tanana River Geospatial_Data_Presentation_Form: journal article Publication_Information: Publication_Place: United States Publisher: BioScience Other_Citation_Details: v. 48, no. 9, p. 690-695. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Yarie and others, 1998 Source_Contribution: Flooding along the Tanana River Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: Unknown Title: Alaska High Altitude Aerial Photography Program Geospatial_Data_Presentation_Form: prints and digital files Publication_Information: Publication_Place: unknown Publisher: U.S. Geological Survey Source_Scale_Denominator: 65000 Type_of_Source_Media: photographic print Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 198008 Single_Date/Time: Calendar_Date: 197807 Single_Date/Time: Calendar_Date: 198307 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: AHAP Aerial Photography Source_Contribution: Aerial photography used in surficial geology map unit interpretation Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1948 Title: Tanacross A-5 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: scale 1:63,360 Source_Scale_Denominator: 63360 Type_of_Source_Media: All Topo Software Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1949 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Tanacross A-5, 1949- minor revisions 1973 Source_Contribution: base map Process_Step: Process_Description: Digital cartography - Engineering geologic map polygons were derived from surficial geology map polygons using ArcMap 9.+. The map was then attributed and edited. Source_Used_Citation_Abbreviation: USGS Tanacross A-4, 1948 Source_Used_Citation_Abbreviation: USGS Tanacross A-5, 1949 Source_Used_Citation_Abbreviation: USGS Tanacross B-4, 1949 Source_Used_Citation_Abbreviation: USGS Tanacross B-5, 1948 Source_Used_Citation_Abbreviation: USGS Tanacross B-6, 1949 Source_Used_Citation_Abbreviation: USGS Tanacross C-6, 1955 Source_Used_Citation_Abbreviation: AHAP Aerial Photography Process_Date: 2009 Process_Step: Process_Description: Fieldwork - Reconnaissance field work was done in July-August 2007, and additional fieldwork was complete in July-August 2008. In addition to observations from ground traverses, materials properties were observed in several soil pits that were dug using shovels to maximum depth of 1.3 meters, in hand augured holes, and by observations of exposures along river banks, highway cuts, in gravel pits and along trench walls excavated as part of active fault studies. Process_Date: 2008 Process_Step: Process_Description: Interpretation of engineering properties. Mapped surficial-geologic deposits were grouped according to similar engineering-geologic properties. Source_Used_Citation_Abbreviation: Kreig and Reger, 1982 Source_Used_Citation_Abbreviation: Pewe and Reger, 1983 Source_Used_Citation_Abbreviation: Carter and Galloway, 1978 Source_Used_Citation_Abbreviation: Mason and Beget, 1991 Source_Used_Citation_Abbreviation: Yarie and others, 1998 Process_Date: 2009 Process_Step: Process_Description: Metadata creation - Metadata were assembled by T.D. Hubbard to FGDC Standards using Metavist 1.2, DGGS 7.05, a data entry program for FGDC metadata with XML output. Process_Date: 2010 Process_Step: Process_Description: The shapefiles were edited to eliminate extraneous columns, the file originally titled outline.shp was renamed border.shp and the metadata was updated accordingly. Process_Date: 2011 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: 7 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -141.00000 Latitude_of_Projection_Origin: 0 False_Easting: 500000.0 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0000001 Ordinate_Resolution: 0.0000001 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: eng_geology Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 7 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -141.00000 Latitude_of_Projection_Origin: 0 False_Easting: 500000.0 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0000001 Ordinate_Resolution: 0.0000001 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: border Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.978698 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: border Entity_Type_Label: border.shp Entity_Type_Definition: polygon outlining boundary of map area Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: Shape Attribute_Definition: shape of polygon outlining map boundary Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: shape of map area Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: eng_geol Entity_Type_Label: eng_geol.shp Entity_Type_Definition: engineering geology map unit polygons Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: map_unit Attribute_Definition: Engineering geology map unit, described in text and codeset.pdf Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Codeset_Domain: Codeset_Name: PIR2009-6B_codeset.pdf Codeset_Source: Alaska Division of Geological & Geophysical Surveys http://www.dggs.alaska.gov/metadata/PIR2009-6B_codeset.pdf Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: 907-451-5020 Contact_Facsimile_Telephone: 907-451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Contact_Instructions: Please view our website (http://www.dggs.alaska.gov) for the latest information on available data. 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DGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media by mail, phone, fax, or email from the DGGS Fairbanks office. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard.Turn around time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for the exact shipping ammount. Fees: see http://dx.doi.org/10.14509/19742 Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: SHP Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://dx.doi.org/10.14509/19742 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20101004 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Metadata manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: 907-451-5020 Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Use_Constraints: If the user has modified this metadata file in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent this metadata file, 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. Metadata_Extensions: Online_Linkage: http://www.dggs.alaska.gov/metadata/dggs.ext Profile_Name: dggs metadata extensions