530008ce-3a00-441e-961c-0bb3c30c6327_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 2021-08-24 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) Surficial-geologic map of the Eagle A-1 Quadrangle, Fortymile mining district 2010-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Stevens, D.S.P. originator Burns, P.A.C. originator https://doi.org/10.14509/22081 GEODATABASE Preliminary Interpretive Report PIR 2002-1C 1 sheet, scale 1:63,360 Preliminary Interpretive Report 2002-1C, Surficial-geologic map of the Eagle A-1 Quadrangle, Fortymile mining district, provides 1:63,360-scale geologic mapping of the Eagle A-1 Quadrangle. The area is part of the 100-year old Fortymile mining district and is located in eastern Alaska near the Alaska-Yukon border. This map illustrates the distribution of a variety of unconsolidated deposits and undifferentiated bedrock in the Eagle A-1 Quadrangle, Fortymile mining district. It was prepared by the interpretation of 1:63,360-scale, false-color, infrared aerial photographs taken from July 1978 through August 1981 and is locally verified by ground observations during field visits.The results should be considered reconnaissance in nature. The dominant unconsolidated deposit is colluvium, which mantles most surfaces other than the tops of ridges and those areas immediately adjacent to streams. Three levels of stream terrace can be traced along major drainages at elevations of roughly 200, 100, and 30 meters above modern streams. A fourth low terrace is limited to the southwest part of the map area. Pleistocene mammalian remains have been recovered from ice-rich organic silt and muck overlying placer gravels in many valleys. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/22081. The purpose of the project was to produce a series of 1:63,360-scale geologic maps for a portion of the Fortymile mining district. The geologic data is important for characterizing and distinguishing between geologic units.Previously published 1:63,360-scale geologic maps of this area have been reconnaissance-level maps or only covered portions of the quadrangle. Mapping at 1:63,360 scale or greater detail is needed to identify critical geologic features that may relate to more regional geologic units. The Fortymile project is part of DGGS's Airborne Geophysical and Geological Mineral Inventory Program (AGGMI), a special multi-year investment by the State of Alaska to produce framework geologic maps that will expand the knowledge base of Alaska's geologic and mineral resources, catalyze future private-sector mineral exploration and development, and guide government agencies' planning. The geologic work was funded by the Alaska State Legislature through a Capital Improvement Project (Alaska Airborne Geophysical/Geological Mineral Inventory Program) and the general fund and through the U.S. Geological Survey STATEMAP program under U.S. Department of the Interior, U.S. Geological Survey, National Cooperative Geologic Mapping Program assistance award 01HQAG0054. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government. DGGS student interns and volunteers providing field assistance include Bryan A. Finseth (1999), Mark Mccrary (1999), J.C. Grady (2000), W.C. Munley (2000), and M.R. Johnson (2001). Milton A. Wiltse provided technical review of the maps. Jessica Mayer provided assistance with surficial geologic studies. 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 Alluvial Deposits Bison Fossils Caribou Fossils Colluvial Deposits Complex Deposits DGGS GeMS GeMS NCGMP09 Geologic Map Geology Glacial Deposits Horse Fossils Mammoth Fossils Man-Made Deposits Mining STATEMAP Project Sheep Fossils Surficial Surficial Geologic Map Surficial Geology Tailings Terrace Unconsolidated Deposits theme Alaska Division of Geological & Geophysical Surveys Alaska, State of Boundary (Place) Eagle Quadrangle Fortymile Mining District Fortymile River Jack Wade Junction Steele Creek Dome Taylor Highway Top of the World Highway Walker Fork place Alaska Division of Geological & Geophysical Surveys Cenozoic Holocene Pleistocene Quaternary Tertiary 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). Surficial-geologic map of the Eagle A-1 Quadrangle, Fortymile mining district 2010-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Stevens, D.S.P. originator Burns, P.A.C. originator https://doi.org/10.14509/22081 Preliminary Interpretive Report PIR 2002-1C 1 sheet, scale 1:63,360 crossReference Bedrock geologic map of the Eagle A-1 Quadrangle, Fortymile mining district 2002-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Szumigala, D.J. originator Newberry, R.J. originator Werdon, M.B. originator Athey, J.E. originator Flynn, R.L. originator Clautice, K.H. originator https://doi.org/10.14509/2864 Preliminary Interpretive Report PIR 2002-1B 1 sheet, scale 1:63,360 crossReference Geologic map of the Eagle A-1 Quadrangle, Fortymile mining district 2002-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Szumigala, D.J. originator Newberry, R.J. originator Werdon, M.B. originator Athey, J.E. originator Stevens, D.S.P. originator Flynn, R.L. originator Clautice, K.H. originator Craw, P.A. originator https://doi.org/10.14509/2863 Preliminary Interpretive Report PIR 2002-1A 1 sheet, scale 1:63,360 crossReference Major-oxide, minor-oxide, trace-element, rare-earth element, trace geochemical, and coal quality data from rocks collected in the Eagle and Tanacross quadrangles, Alaska in 1999, 2000, 2001 2002-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Szumigala, D.J. originator Werdon, M.B. originator Newberry, R.J. originator Athey, J.E. originator Clautice, K.H. originator Flynn, R.L. originator Grady, J.C. originator Munly, W.C. originator Johnson, M.R. originator https://doi.org/10.14509/2866 Raw Data File RDF 2002-1 35 p., 1 sheet, scale 1:63,360 crossReference vector eng; USA geoscientificInformation -141.504512 -141.000000 63.999139 64.250853 1999-01-01 2002-01-01 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/10.14509/22081 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 Preliminary Interpretive Report (PIR). A PIR is intended to provide timely release maps and reports with a preliminary interpretation of geology or analytical data. One or two people familiar with the geologic problem have reviewed this publication for technical content. This publication is released as a DGGS Preliminary Interpretive Report (PIR). A PIR is intended to provide timely release maps and reports with a preliminary interpretation of geology or analytical data. One or two people familiar with the geologic problem have reviewed this publication for technical content. 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 Geologic mapping - Fieldwork for surficial investigations, including traverses, roadcut investigations, and river exposures, was conducted for 60 person-days during the months of June through August in 1999 - 2001. Field notes and sediment samples were collected throughout the quadrangle for surficial investigations. Surficial mapping involved using Yeend (1996) on a regular basis for checking placer geology and general units. Surficial mappers recorded observations on co-registered acetate overlays on 1:50,000-scale (nominal) color-infrared aerial photographs, and directly on 1:63,360-scale topographic base maps. Stations were located using air photos and handheld GPS devices with location precision varying from 3 to 15 meters. 2001-01-01T00:00:00 Geologic map compilation - Surficial-geologic information was interpreted using 1:50,000-scale (nominal) air-photo stereopairs, and compiled onto acetate overlays. The overlay information was transferred to a paper 1:63,360-scale USGS topographic base using a zoom transfer scope. Surficial-geologic information was digitized from the paper USGS topographic base map (above) into Arc/Info 7.0.4 GIS (ArcEdit module) using a large-format digitizing table. Surficial-geologic polygons and lines were then edited and attributed using Arc, Info, and ArcEdit. Bedrock point data (see DGGS PIR 2002-1B) of locations of structural observations (strike, dip, cleavage, jointing, etc.) and 'rubblecrop' were intersected with the surficial-geologic polygon coverage using the Arc command 'intersect' in order to identify locations that were mapped as surficial materials based on aerial photography but were found to have small exposures that were desireable to be mapped as bedrock. These areas were then modified in the surficial-geologic coverages to be areas of bedrock exposure. Final bedrock and surficial geology polygon coverages were merged using the Arc command 'union' to generate the polygon coverage used to make PIR 2002-1a, the comprehensive geologic map. Project staff and peer reviewers evaluated the report and accompanying data for readability and logical consistency with related information sources. 2002-01-01T00:00:00 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 Source Contribution: GIS analysis and digital cartographySource Type: paper AK GeMS symbology: A description of the AK GeMS style file 2021-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Ekberg, P.G. originator Hendricks, M.D. originator Athey, J.E. originator https://doi.org/10.14509/30584 Miscellaneous Publication MP 169 7 p 2021-01-01 Source Contribution: GIS analysis and digital cartographySource Type: paper AK GeMS data dictionary: A description of the Alaska geologic mapping schema 2021-01-01 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 Willingham, A.L. originator Naibert, T.J. originator https://doi.org/10.14509/30669 Miscellaneous Publication MP 170 10 p 2021-01-01 Source Contribution: Geologic mappingSource Type: paper Glacial geology of the Mt. Prindle area, Yukon-Tanana upland, Alaska 1984-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Weber, F.R. originator Hamilton, T.D. originator https://doi.org/10.14509/2267 Professional Report PR 86H p. 42-48 1984-01-01 Source Contribution: Geologic mappingSource Type: paper 63360 Gold placers of the historical Fortymile River region, Alaska 1996-01-01 publication U.S. Geological Survey United States publisher Yeend, W.E. originator https://dggs.alaska.gov/pubs/id/3781 Bulletin B 2125 75 p., 1 sheet, scale 1:63,360 1996-01-01 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