9547b2ad-192a-4d9f-93d4-483e5bc7cddb_source eng; USA utf8 dataset Simone Montayne Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 (907)451-5050 3354 College Road Fairbanks AK 99709-3707 USA dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays pointOfContact 2021-06-30 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) Preliminary bedrock geologic map database, northeastern Richardson mining district, Alaska 2021-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Twelker, Evan originator Wildland, A.D. originator Werdon, M.B. originator Sicard, K.R. originator Wypych, Alicja originator Naibert, T.J. originator Athey, J.E. originator Willingham, A.L. originator Lockett, A.C. originator https://doi.org/10.14509/30676 GEODATABASE Raw Data File RDF 2021-9 4 p. During the 2017 field season, geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted geologic mapping and sampling of part of the Richardson mining district southeast of Fairbanks, Alaska. The project area is about 30 miles west of the Pogo gold mine and covers gold exploration activity at the Montecristo and Uncle Sam properties. This work aims to build an improved understanding of the area's geology and controls on gold mineralization for purposes of exploration targeting and mineral-resource assessment. The 260-square-mile map area lies between the Salcha River and Shaw Creek and is bounded by the Trans-Alaska Pipeline access road to the southwest. The area is characterized by forested, moderate-relief hills blanketed by vegetation, loess, and locally, sand dunes. Rock outcrop is less than one percent; consequently, the map interpretation relies heavily on the DGGS East Richardson airborne magnetic and electromagnetic survey as well as rocks collected from pits dug into rocky colluvial deposits below surficial loess or sand. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/30676. This work aims to build an improved understanding of the area's geology and controls on gold mineralization for purposes of exploration targeting and mineral-resource assessment. We thank Dennis McDowell and Pat Smith of Great American Minerals Exploration (GAME) and Bill Cronk and Northern Empire Resources Corp. for sharing data and insights on the district. Thanks also to Richard Lessard, Rainer Newberry, and Dave Larimer for geological discussions. Sumitomo Metal Mining Pogo provided access to the Pogo mine road, and Alyeska Pipeline Service Company granted access to the pipeline right of way. This project was funded by the State of Alaska. completed Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 (907)451-5050 3354 College Road Fairbanks AK 99709-3707 USA dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays 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. pointOfContact notPlanned Amphibolite Bedrock Bedrock Geology DGGS Diorite Economic Geology Economic Study Geologic Geology Gneiss Granite Igneous Igneous Rocks Metamorphic Metamorphic Rocks Metamorphism Metasedimentary Rocks Metavolcanic rocks Migmatite Mineral Assessment Mineral Deposit Mineral Development Mineral Localities Mineral Prospect Mineral Resources Minerals Mining Ore Deposit Ores Orthogneiss Pegmatite Plutonic Plutonic Rocks Plutons Porphyry Precious Metals Prospecting Sites Quartzite Resource Assessment Resource Information Resources Rock Units Rocks Schist Serpentinite Structure theme Alaska Division of Geological & Geophysical Surveys Alaska Caribou Creek Fairbanks Mining District Flat Creek Gilles Creek Gold Run Creek Keystone Creek Lenant Creek McCoy Creek Minton Creek Monte Cristo Creek Ninetyeight Creek Richardson Mining District Rosa Creek Salcha River Twentyfive Mile Creek Uncle Sam Creek place Alaska Division of Geological & Geophysical Surveys Cretaceous Devonian Early Cretaceous Late Cretaceous Mississippian Proterozoic Triassic temporal 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 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. otherRestrictions 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. otherRestrictions 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). Data tables related to geology and gold mineralization in the Richardson district, east-central Alaska 2007-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Graham, G.E. originator Jozwik, Diana originator https://doi.org/10.14509/15819 Raw Data File RDF 2007-2 32 p crossReference 40Ar/39Ar data from the Tanacross D-1 and D-2, Big Delta B-4 and B-5, and Mount Hayes A-6 quadrangles, Alaska 2018-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Naibert, T.J. originator Benowitz, J.A. originator Wypych, Alicja originator Sicard, K.R. originator Twelker, Evan originator https://doi.org/10.14509/30112 Raw Data File RDF 2018-3 15 p crossReference 40Ar/39Ar data from the Richardson mining district, Big Delta Quadrangle, Alaska 2020-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Twelker, Evan originator Benowitz, J.A. originator Naibert, T.J. originator https://doi.org/10.14509/30530 Raw Data File RDF 2020-11 10 p crossReference Geologic mapping in the Richardson-Uncle Sam area, interior Alaska (presentation): Alaska Miners Association Annual Convention, Anchorage, Alaska, November 7-12, 2017 2017-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Twelker, Evan originator Werdon, M.B. originator Sicard, K.R. originator Wypych, Alicja originator Naibert, T.J. originator Athey, J.E. originator Willingham, A.L. originator Lockett, A.C. originator https://doi.org/10.14509/29811 Poster and Presentation Twelker, Evan and others, 2017 37 p crossReference Major-oxide and trace-element geochemical data from rocks collected in the Richardson mining district, Big Delta Quadrangle, Alaska 2018-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Twelker, Evan originator Wypych, Alicja originator Sicard, K.R. originator Naibert, T.J. originator Montayne, Simone originator Newberry, R.J. originator Wyatt, W.C. originator https://doi.org/10.14509/30119 Raw Data File RDF 2018-6 4 p crossReference Major-oxide and trace-element geochemical data from rocks collected in the Richardson mining district, Big Delta Quadrangle, Alaska 2017-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Twelker, Evan originator Wypych, Alicja originator Sicard, K.R. originator Naibert, T.J. originator Werdon, M.B. originator Athey, J.E. originator Willingham, A.L. originator Lockett, A.C. originator https://doi.org/10.14509/29779 Raw Data File RDF 2017-11 4 p crossReference U-Pb zircon data and ages for bedrock samples from the Richardson mining district, Big Delta Quadrangle, Alaska 2021-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Twelker, Evan originator O'Sullivan, P.B. originator https://doi.org/10.14509/30555 Raw Data File RDF 2020-14 17 p crossReference vector eng; USA geoscientificInformation -146.376046 -145.662557 64.291956 64.555398 2017-01-01 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 true geodatabase unknown Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 (907)451-5050 3354 College Road Fairbanks AK 99709-3707 USA dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays 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. distributor Contact DGGS for current pricing Free download https://doi.org/10.14509/30676 geodatabase CSDGM IMPORT ERROR: No digtinfo/formcont information dataset 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. This publication is released as a DGGS Raw Data File (RDF). Reports in the RDF series present field data and analytical results with limited or no interpretation by DGGS staff or project collaborators. The report and accompanying data have been evaluated by project staff for general readability and logical consistency but have not undergone technical peer review. Information presented in this release is subject to change. This publication is released as a DGGS Raw Data File (RDF). Reports in the RDF series present field data and analytical results with limited or no interpretation by DGGS staff or project collaborators. The report and accompanying data have been evaluated by project staff for general readability and logical consistency but have not undergone technical peer review. Information presented in this release is subject to change. All polygon features were topologically validated according to specifications of the AK GeMS geologic mapping schema. This lineage was generated by the FGDC CSDGM to 19139 transformation Bedrock mapping - During the 2017 field season, DGGS geologists conducted geologic mapping and sampling of part of the Richardson mining district southeast of Fairbanks, Alaska. Rock outcrop is less than one percent; consequently, the map interpretation relies heavily on the DGGS East Richardson airborne magnetic and electromagnetic survey as well as rocks collected from pits dug into rocky colluvial deposits below surficial loess or sand. Location data for outcrop observations were collected using GPS-enabled tablets running the ESRI Collector App. Geologic unit identification 2017-01-01T00:00:00 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. 2021-01-01T00:00:00 Technical review - The report and accompanying data were evaluated by project staff for general readability and logical consistency but have not undergone technical peer review. 2021-01-01T00:00:00 Source Contribution: Bedrock mappingSource Type: digital Line, grid, and vector data and plot files for the airborne geophysical survey data of parts of the east Richardson, Liscum, and Black Mountain areas, interior Alaska 2006-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Fugro Airborne Surveys Corp. originator Stevens Exploration Management Corp. originator https://doi.org/10.14509/14531 Geophysical Report GPR 2006-5 29 sheets, 1 DVD 2006-01-01 Source Contribution: GIS analysis and digital cartographySource Type: digital AK GeMS data dictionary: A description of the AK GeMS database schema 2020-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Hendricks, M.D. originator Ekberg, P.G. originator Athey, J.E. originator Wyatt, W.C. originator https://doi.org/10.14509/30583 Miscellaneous Publication MP 168 2020-01-01 Source Contribution: GIS analysis and digital cartographySource Type: digital Glossary of Geology 2011-01-01 publication American Geological Institute Alexandria Virginia publisher Neuendorf, K.K.E. originator Mehl, J.P., Jr. originator Jackson, J.A. originator https://www.americangeosciences.org/pubs/glossary 799 p 2011-01-01 Source Contribution: GIS analysis and digital cartographySource Type: digital IFSAR Orthorectified Radar Image (ORI) Alaska 2013-01-01 publication U.S. Geological Survey Sioux Falls SD publisher U.S. Geological Survey, EROS Data Center originator https://doi.org/10.5066/F7CJ8CSF 2013-01-01 Source Contribution: GIS analysis and digital cartographySource Type: paper Geologic Time Scale v. 5.0 2018-01-01 publication Geological Society of America Boulder CO publisher Walker, J.D. originator Geissman, J.W. originator Bowring, S.A. originator Babcock, L.E. originator https://www.geosociety.org/documents/gsa/timescale/timescl.pdf 2018-01-01 Source Contribution: Bedrock mappingSource Type: paper 250000 Preliminary geologic map of the Big Delta Quadrangle, Alaska 1978-01-01 publication U.S. Geological Survey United States publisher Weber, F.R. originator Foster, H.L. originator Keith, T.E.C. originator Dusel-Bacon, Cynthia originator https://dggs.alaska.gov/pubs/id/12411 Open-File Report OF 78-529-A 1 sheet, scale 1:250,000 1978-01-01 otherRestrictions 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. unknown This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2019-08-12T11:11:00 version of the FGDC CSDGM to ISO 19139 transform. Simone Montayne Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 (907)451-5050 3354 College Road Fairbanks AK 99709-3707 USA dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays pointOfContact