Identification_Information: Citation: Citation_Information: Originator: Smith, T.E. Originator: Robinson, M.S. Originator: Weber, F.R. Originator: Waythomas, C.F. Originator: Reifenstuhl, R.R. Publication_Date: 1994 Title: Geologic map of the Upper Chena River area, eastern interior Alaska Geospatial_Data_Presentation_Form: geodatabase Series_Information: Series_Name: Professional Report Issue_Identification: PR 115 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 19 p., 1 sheet, scale 1:63,360 Online_Linkage: https://doi.org/10.14509/2315 Description: Abstract: Geologic studies of the upper Chena River area were undertaken in 1983 as part of the Interior Mining District Evaluation Program, a series of projects designed to develop new information on known mineral districts in interior Alaska. During the three-year course of the program, geologists examined four districts that have contributed significantly to historical gold production in Alaska's Interior, Fairbanks, Livengood, Richardson, and upper Chena River. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/2315. Purpose: The authors chose to study the upper Chena River district to better understand (1) the source of placer gold resources near Van Curler's Bar, (2) the nature and production potential of tungsten-bearing skarns in the eastern map area, and (3) a proposed route of a transportation corridor through the area. Supplemental_Information: This geodatabase is organized according to the AK GeMS mapping schema Hendricks, M.D., Ekberg, P.G., Athey, J.E., Wyatt, W.C., Willingham, A.L., and Naibert, T.J., 2021, AK GeMS data dictionary: A description of the Alaska geologic mapping schema: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 170, 10 p. https://doi.org/10.14509/30669. The distribution package includes ESRI fonts and style files, along with usage instructions. Further documentation of the symbology is provided by Ekberg, P.G., Hendricks, M.D., and Athey, J.E., 2021, AK GeMS symbology: A description of the AK GeMS style file: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 169, 7 p. https://doi.org/10.14509/30584 Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1994 Currentness_Reference: ground condition Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -145.514326 East_Bounding_Coordinate: -144.484352 North_Bounding_Coordinate: 65.146854 South_Bounding_Coordinate: 64.809445 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Age Dates Theme_Keyword: Alluvial Theme_Keyword: Alluvium Theme_Keyword: Amphibolite Theme_Keyword: Bedrock Theme_Keyword: Bedrock Geology Theme_Keyword: CIPW Norms Theme_Keyword: Colluvium Theme_Keyword: DGGS Theme_Keyword: Fan Theme_Keyword: Floodplain Theme_Keyword: GeMS Theme_Keyword: GeMS NCGMP09 Theme_Keyword: Gelifluction Theme_Keyword: Generalized Theme_Keyword: Geochemistry Theme_Keyword: Geochronology Theme_Keyword: Geodatabase Theme_Keyword: Geologic Map Theme_Keyword: Geology Theme_Keyword: Glacial Deposits Theme_Keyword: Gneiss Theme_Keyword: Granite Theme_Keyword: Granodiorite Theme_Keyword: Greenschist Theme_Keyword: K-Ar Theme_Keyword: Landslide Theme_Keyword: Major Oxides Theme_Keyword: Marble Theme_Keyword: Modal Analysis Theme_Keyword: Orthogneiss Theme_Keyword: Outwash Theme_Keyword: Peat Theme_Keyword: Permafrost and Periglacial Theme_Keyword: Placer Theme_Keyword: Quartz Theme_Keyword: Quartzite Theme_Keyword: Rhyolite Theme_Keyword: Rocks Theme_Keyword: Schist Theme_Keyword: Serpentinite Theme_Keyword: Silt Theme_Keyword: Slope Theme_Keyword: Stratigraphy Theme_Keyword: Surficial Theme_Keyword: Tailings Theme_Keyword: Talus Theme_Keyword: U-Pb Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Anvil Creek Place_Keyword: Bear Creek Place_Keyword: Boulder Creek Place_Keyword: California Creek Place_Keyword: Caribou Creek Place_Keyword: Cash Creek Place_Keyword: Circle Mining District Place_Keyword: Cottonwood Creek Place_Keyword: Dan Creek Place_Keyword: East Fork Chena River Place_Keyword: Fairbanks Mining District Place_Keyword: Mascot Creek Place_Keyword: Middle Fork Chena River Place_Keyword: Montana Creek Place_Keyword: North Fork Salcha River Place_Keyword: Ohio Creek Place_Keyword: Palmer Creek Place_Keyword: Salcha River Place_Keyword: Salmonfoot Creek Place_Keyword: Shamrock Creek Place_Keyword: Sullivan Creek Place_Keyword: Teuchet Creek Place_Keyword: Volcano Creek Place_Keyword: Wolf Creek Stratum: Stratum_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Stratum_Keyword: Blackshell Unit Stratum_Keyword: Chena River Sequence Stratum_Keyword: Dan Creek Unit Stratum_Keyword: Totatlanika Schist Stratum_Keyword: West Point Complex Stratum_Keyword: Yukon-Tanana Terrane Temporal: Temporal_Keyword_Thesaurus: Walker, J.D., Geissman, J.W., Bowring, S.A, and Babcock, L.E., comp., 2012, Geologic Time Scale v. 4.0: Geological Society of America Temporal_Keyword: Cretaceous Temporal_Keyword: Mesozoic Temporal_Keyword: Paleozoic Temporal_Keyword: Precambrian Temporal_Keyword: Quaternary Temporal_Keyword: Tertiary Temporal_Keyword: Triassic 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: Alaska Division of Geological & Geophysical Surveys Contact_Position: 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 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 (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible. Data_Set_Credit: The Alaska legislature provided funding for the studies through capital and operating budget appropriations. Additional Acknowledgments: Geology by T.E. Smith, M.S. Robinson, F.R. Weber, C.F. Waythomas, and R.R. Reifenstuhl, assisted by D.D. Adams, G.L. Allegro, T.D. Balog, D.A. Coleman, J.W. Lindhorst, J.M. Murphy, and D.D. Southworth. Geochronology by J.N. Aleinikoff, U.S. Geological Survey, J.K. Mortenson, Geological Survey of Canada, D.L. Turner, University of Alaska Fairbanks, and F.H. Wilson, U.S. Geological Survey. Richard D. Reger and Richard C. Swainbank provided technical review and Fran Tannian provided a thorough edit. Digital cartography by Fred Sturmann. Geologic map conversion to the GeMS standard was funded by USGS National Geological and Geophysical Data Preservation Program under award number G20AP00103 and the State of Alaska General Fund. Cross_Reference: Citation_Information: Originator: Albanese, M.D. Publication_Date: 1984 Title: Geochemical reconnaissance of the upper Chena River area, central Alaska: analytical data on the stream-sediment, pan-concentrate, and rock samples Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 84-4 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 30 p., 1 sheet, scale 1:63,360 Online_Linkage: https://doi.org/10.14509/2363 Cross_Reference: Citation_Information: Originator: Southworth, D.D. Publication_Date: 1985 Title: Geologic and geochemical investigations, Nail Ridge area, northwest Big Delta Quadrangle, Alaska Series_Information: Series_Name: Public Data File Issue_Identification: PDF 85-38 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 19 p., 1 sheet, scale 1:40,000 Online_Linkage: https://doi.org/10.14509/1131 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Certainty in attribute interpretation varies throughout the map and is scale dependant. Attribute fields within each feature class record the authors' degree of confidence in the existence or identity of applicable features. Logical_Consistency_Report: All polygon features were topologically validated according to specifications of the AK GeMS geologic mapping schema. Completeness_Report: This publication is released as a DGGS Professional Report (PR). A PR is the completed product of original research and analysis, and PRs use professional cartography and undergo rigorous peer review, editing, and revision to ensure accuracy. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Certainty in feature boundaries or location varies throughout the map. Data fields within each feature class and the accompanying orientation and location confidence lookup tables record the authors' degree of confidence in the location of applicable features. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: DuBois, G.D. Originator: Wilson, F.H. Originator: Shew, Nora Publication_Date: 1986 Title: Map and tables showing potassium-argon age determinations and selected major-element chemical analyses from the Circle Quadrangle, Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 86-392 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:250,000 Online_Linkage: https://dggs.alaska.gov/pubs/id/12152 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1986 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: DuBois, G.D. and others, 1986 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Dusel-Bacon, Cynthia Originator: Aleinikoff, J.N. Publication_Date: 1985 Title: Petrology and tectonic significance of augen gneiss from a belt of Mississippian granitoids in the Yukon-Tanana terrane, east-central Alaska Series_Information: Series_Name: Bulletin Issue_Identification: v. 96, no. 4 Publication_Information: Publication_Place: Unknown Publisher: Geological Society of America Online_Linkage: http://gsabulletin.gsapubs.org/content/96/4/411.abstract Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1985 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Dusel-Bacon, Cynthia and Aleinikoff, J.N., 1985 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Forbes, R.B. Originator: Weber, F.R. Publication_Date: 1975 Title: Progressive metamorphism of schists recovered form a deep drill hole near Fairbanks, Alaska Series_Information: Series_Name: Journal of Research Issue_Identification: v. 3, no. 6 Publication_Information: Publication_Place: Unknown Publisher: U.S. Geological Survey Online_Linkage: null Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1975 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Forbes, R.B. and Weber, F.R., 1975 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Foster, H.L. Originator: Laird, Jo Originator: Keith, T.E.C. Originator: Cushing, G.W. Originator: Menzie, W.D. Publication_Date: 1983 Title: Preliminary geologic map of the Circle Quadrangle, Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 83-170-A Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 30 p., 1 sheet, scale 1:250,000 Online_Linkage: https://dggs.alaska.gov/pubs/id/12617 Source_Scale_Denominator: 250000 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: Foster, H.L. and others, 1983 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Gilbert, W.G. Originator: Redman, E.C. Publication_Date: 1975 Title: Geologic map and structure sections of Healy C-6 Quadrangle, Alaska Series_Information: Series_Name: Alaska Open-File Report Issue_Identification: AOF 80 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 3 p., 1 sheet, scale 1:40,000 Online_Linkage: https://doi.org/10.14509/176 Source_Scale_Denominator: 40000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1975 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Gilbert, W.G. and Redman, E.C., 1975 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Hendricks, M.D. Originator: Ekberg, P.G. Originator: Athey, J.E. Originator: Wyatt, W.C. Publication_Date: 2020 Title: AK GeMS data dictionary: A description of the AK GeMS database schema Series_Information: Series_Name: Miscellaneous Publication Issue_Identification: MP 168 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Online_Linkage: https://doi.org/10.14509/30583 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2020 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Hendricks, M.D. and others, 2020 Source_Contribution: GIS analysis and digital cartography Source_Information: Source_Citation: Citation_Information: Originator: Keith, S.B. Originator: Laux, D.P. Originator: Maughan, J. Originator: Schwab, K. Originator: Ruff, Steven Originator: Swan, M.M. Originator: Abbott, Earl Originator: Friberg, Steve Publication_Date: 1991 Title: Buffa, R.H. and Coyner A.R., eds., Geology and ore deposits of the Great Basin—Field trip guidebook compendium, vol. 1 Publication_Information: Publication_Place: Reno, Nevada Publisher: Nevada Geological Society Online_Linkage: null Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1991 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Keith, S.B. and others, 1991 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Neuendorf, K.K.E. Originator: Mehl, J.P., Jr. Originator: Jackson, J.A. Publication_Date: 2011 Title: Glossary of Geology Publication_Information: Publication_Place: Alexandria, Virginia Publisher: American Geological Institute Other_Citation_Details: 799 p Online_Linkage: https://www.americangeosciences.org/pubs/glossary Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2011 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Neuendorf, K.K.E. and others, 2011 Source_Contribution: GIS analysis and digital cartography Source_Information: Source_Citation: Citation_Information: Originator: Newberry, R.J. Originator: Burns, L.E. Originator: Swanson, S.E. Originator: Smith, T.E. Publication_Date: 1990 Title: Stein, H.J., and Hannah, J.L., eds., Ore-bearing granite systems Series_Information: Series_Name: Special Paper Issue_Identification: 246 Publication_Information: Publication_Place: Unknown Publisher: Geological Society of America Online_Linkage: https://doi.org/10.1130/SPE246-p121 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1990 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Newberry, R.J. and others, 1990 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Reiser, H.N. Originator: Brosge, W.P. Originator: Marsh, S.P. Originator: Hamilton, T.D. Originator: Cady, J.W. Originator: Wilson, F.H. Publication_Date: 1987 Title: The Alaska Mineral Resource Assessment Program; background information to accompany folio of geologic and mineral resource maps of the Circle Quadrangle, Alaska Series_Information: Series_Name: Circular Issue_Identification: C 986 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 22 p Online_Linkage: https://dggs.alaska.gov/pubs/id/13455 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1987 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Reiser, H.N. and others, 1987 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Robinson, M.S. Originator: Smith, T.E. Originator: Metz, P.A. Publication_Date: 1990 Title: Bedrock geology of the Fairbanks mining district Series_Information: Series_Name: Professional Report Issue_Identification: PR 106 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 sheets, scale 1:63,360 Online_Linkage: https://doi.org/10.14509/2287 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1990 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Robinson, M.S. and others, 1990 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Sisson, Alexander Publication_Date: 1979 Title: The relationship of plate tectonics to Alaskan geology and resources, Proceedings, Alaska Geological Society Symposium 6, Anchorage, Alaska, April 4-6, 1977 Publication_Information: Publication_Place: Anchorage, Alaska Publisher: Alaska Geological Society Online_Linkage: null Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1979 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Sisson, Alexander, 1979 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Smith, T.E. Originator: Robinson, M.S. Originator: Bundtzen, T.K. Originator: Metz, P.A. Publication_Date: 1981 Title: Fairbanks mining district in 1981-New look at an old mineral province [abs.] Series_Information: Series_Name: null Issue_Identification: v. 9, no. 11 Publication_Information: Publication_Place: Unknown Publisher: null Online_Linkage: http://www.alaskaminers.org/alaska-miner-journal Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1981 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Smith, T.E. and others, 1981 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Smith, T.E. Originator: Pessel, G.H. Originator: Wiltse, M.A. Publication_Date: 1987 Title: Mineral assessment of the Lime Peak-Mt. Prindle area, Alaska Series_Information: Series_Name: Miscellaneous Publication Issue_Identification: MP 29 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 712 p., 13 sheets, scale 1:63,360 Online_Linkage: https://doi.org/10.14509/731 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1987 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Smith, T.E. and others, 1987 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Solie, D.N. Originator: Burns, L.E. Originator: Newberry, R.J. Publication_Date: 1990 Title: Gold favorability in the Big Delta Quadrangle, Alaska, as predicted by discriminant analysis for non-porphyry granitic rocks Series_Information: Series_Name: Public Data File Issue_Identification: PDF 90-13 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 16 p., 2 sheets, scale 1:250,000 Online_Linkage: https://doi.org/10.14509/1447 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1990 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Solie, D.N. and others, 1990 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Streckeisen, A.L. Originator: Le Maitre, R.W. Publication_Date: 1979 Title: A chemical approximation to the modal QAPF classification of the igneous rocks Series_Information: Series_Name: null Issue_Identification: 136 Publication_Information: Publication_Place: Unknown Publisher: null Online_Linkage: null Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1979 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Streckeisen, A.L. and Le Maitre, R.W., 1979 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, Clyde Publication_Date: 1968 Title: Schists of the central Alaska Range Series_Information: Series_Name: Bulletin Issue_Identification: B 1254-E Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: p. E1-E22 Online_Linkage: https://dggs.alaska.gov/pubs/id/3654 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1968 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, Clyde, 1968 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, Clyde Publication_Date: 1970 Title: Geologic map of the Healy D-3 Quadrangle, Alaska Series_Information: Series_Name: Geologic Quadrangle Map Issue_Identification: GQ 805 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: https://dggs.alaska.gov/pubs/id/12898 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, Clyde Publication_Date: 1970 Title: Geologic map of the Healy D-2 Quadrangle, Alaska Series_Information: Series_Name: Geologic Quadrangle Map Issue_Identification: GQ 804 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: https://dggs.alaska.gov/pubs/id/12897 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, Clyde Publication_Date: 1970 Title: Geologic map of the Fairbanks A-5 Quadrangle, Alaska Series_Information: Series_Name: Geologic Quadrangle Map Issue_Identification: GQ 811 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: https://dggs.alaska.gov/pubs/id/12896 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, Clyde Publication_Date: 1970 Title: Geologic map of the Fairbanks A-3 Quadrangle, Alaska Series_Information: Series_Name: Geologic Quadrangle Map Issue_Identification: GQ 809 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: https://dggs.alaska.gov/pubs/id/12895 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, Clyde Publication_Date: 1970 Title: Geologic map of the Fairbanks A-2 Quadrangle, Alaska Series_Information: Series_Name: Geologic Quadrangle Map Issue_Identification: GQ 808 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: https://dggs.alaska.gov/pubs/id/12894 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, Clyde Publication_Date: 1970 Title: Geologic map of the Healy D-4 Quadrangle, Alaska Series_Information: Series_Name: Geologic Quadrangle Map Issue_Identification: GQ 806 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: https://dggs.alaska.gov/pubs/id/12899 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, Clyde Publication_Date: 1970 Title: Geologic map of the Healy D-5 Quadrangle, Alaska Series_Information: Series_Name: Geologic Quadrangle Map Issue_Identification: GQ 807 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: https://dggs.alaska.gov/pubs/id/12900 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, Clyde Publication_Date: 1970 Title: Geologic map of the Fairbanks A-4 Quadrangle, Alaska Series_Information: Series_Name: Geologic Quadrangle Map Issue_Identification: GQ 810 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: https://dggs.alaska.gov/pubs/id/13328 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Weber, F.R. Originator: Foster, H.L. Originator: Keith, T.E.C. Originator: Dusel-Bacon, Cynthia Publication_Date: 1978 Title: Preliminary geologic map of the Big Delta Quadrangle, Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 78-529-A Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:250,000 Online_Linkage: https://dggs.alaska.gov/pubs/id/12411 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1978 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Weber, F.R. and others, 1978 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: White, A.J.R. Originator: Chappel, B.W. Publication_Date: 1983 Title: Roddick, J.C., ed., Circum Pacific plutonic terranes Series_Information: Series_Name: Memoir Issue_Identification: 159 Publication_Information: Publication_Place: Unknown Publisher: Geological Society of America Online_Linkage: https://doi.org/10.1130/MEM159-p21 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: White, A.J.R. and Chappel, B.W., 1983 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wilson, F.H. Originator: Shew, Nora Publication_Date: 1981 Title: Map and tables showing preliminary results of potassium-argon age studies in the Circle Quadrangle, Alaska, with a compilation of earlier dating work Series_Information: Series_Name: Open-File Report Issue_Identification: OF 81-889 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:250,000 Online_Linkage: https://dggs.alaska.gov/pubs/id/12104 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1981 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wilson, F.H. and Shew, Nora, 1981 Source_Contribution: Geologic map compilation Process_Step: Process_Description: Fieldwork - Mappers recorded observations in field notebooks and on the aerial photographs and topographic maps, predominantly at 1:63,360 scale. In some areas, photocopies of topography at varying enlarged scales were used. All compilations were made by hand on stable Mylar at 1:63,360 scale. Locations were determined visually in the field by reference to surrounding topography and sometimes by triangulation with Brunton compasses. Process_Date: 1983 Process_Step: Process_Description: Geologic map compilation - Data for the digital geologic map was digitized from a Mylar geologic field map compilation. This compilation was done on a one to one scale, stable Mylar of the USGS topographic base for each of the 1:63,360 scale USGS topographic bases included in the map area. The bedrock geologic map was compiled using field notes from fieldwork process step (above) and information from prior geologic investigations by various researchers. Wahrhaftig 1968 and Bundtzen and others, 1976 helped with detailed description and samples from the Alaska Range stratigraphy. Source_Used_Citation_Abbreviation: DuBois, G.D. and others, 1986 Source_Used_Citation_Abbreviation: Dusel-Bacon, Cynthia and Aleinikoff, J.N., 1985 Source_Used_Citation_Abbreviation: Forbes, R.B. and Weber, F.R., 1975 Source_Used_Citation_Abbreviation: Foster, H.L. and others, 1983 Source_Used_Citation_Abbreviation: Gilbert, W.G. and Redman, E.C., 1975 Source_Used_Citation_Abbreviation: Keith, S.B. and others, 1991 Source_Used_Citation_Abbreviation: Newberry, R.J. and others, 1990 Source_Used_Citation_Abbreviation: Reiser, H.N. and others, 1987 Source_Used_Citation_Abbreviation: Robinson, M.S. and others, 1990 Source_Used_Citation_Abbreviation: Sisson, Alexander, 1979 Source_Used_Citation_Abbreviation: Smith, T.E. and others, 1981 Source_Used_Citation_Abbreviation: Smith, T.E. and others, 1987 Source_Used_Citation_Abbreviation: Solie, D.N. and others, 1990 Source_Used_Citation_Abbreviation: Streckeisen, A.L. and Le Maitre, R.W., 1979 Source_Used_Citation_Abbreviation: Wahrhaftig, Clyde, 1968 Source_Used_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Used_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Used_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Used_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Used_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Used_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Used_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Used_Citation_Abbreviation: Wahrhaftig, Clyde, 1970 Source_Used_Citation_Abbreviation: Weber, F.R. and others, 1978 Source_Used_Citation_Abbreviation: White, A.J.R. and Chappel, B.W., 1983 Source_Used_Citation_Abbreviation: Wilson, F.H. and Shew, Nora, 1981 Process_Date: 1994 Process_Step: Process_Description: GIS analysis and digital cartography - The geologic and geographic features portrayed in this data distribution package were organized and attributed according to the AK GeMS geologic mapping schema. Source_Used_Citation_Abbreviation: Hendricks, M.D. and others, 2020 Source_Used_Citation_Abbreviation: Neuendorf, K.K.E. and others, 2011 Process_Date: 2021 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: 0.999600 Longitude_of_Central_Meridian: -141 Latitude_of_Projection_Origin: 0 False_Easting: 500000.000000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: .00000001 Ordinate_Resolution: .00000001 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: NAD27 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.40000000037 Denominator_of_Flattening_Ratio: 294.978698199999997 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: upper_chena_river_ak_gems_db_pkg Entity_Type_Definition: Geodatabase, layer files, style files, and fonts Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: upper_chena_river_ak_gems_db_pkg Detailed_Description: Entity_Type: Entity_Type_Label: upper_chena_river_fed_gems_db_pkg Entity_Type_Definition: Geodatabase, layer files, style files, and fonts Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: upper_chena_river_fed_gems_db_pkg Detailed_Description: Entity_Type: Entity_Type_Label: upper_chena_river_fed_gems_shapefile_pkg Entity_Type_Definition: Shapefiles and open data files Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: upper_chena_river_fed_gems_shapefile_pkg Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: 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 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 (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible. Resource_Description: PR 115 Distribution_Liability: The State of Alaska makes no expressed 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. Standard_Order_Process: Non-digital_Form: 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. Turnaround 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 amount. Fees: Contact DGGS for current pricing Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: geodatabase Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.14509/2315 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20210714 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Person: Simone Montayne Contact_Position: 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 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 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 the data in any way they are obligated to describe the types of modifications they have performed in the supporting metadata file. User specifically agrees not to imply that changes they made were approved by the Alaska Department of Natural Resources or Division of Geological & Geophysical Surveys. Metadata_Extensions: Online_Linkage: https://dggs.alaska.gov/metadata/dggs.ext Profile_Name: dggs metadata extensions