Wiltse, M.A.Reger, R.D.Newberry, R.J.Pessel, G.H.Pinney, D.S.Robinson, M.S.Solie, D.N.1995geodatabaseReport of InvestigationRI 95-2BFairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys1 sheet, scale 1:63,360https://doi.org/10.14509/2515Report of Investigation 95-2B, Bedrock geologic map of the Circle mining district, Alaska, provides detailed (1:63,360-scale) interpreted bedrock mapping of portions of U.S. Geological Survey Circle B-2, B-3, B-4, C-2, C-3, and C-4 quadrangles. The area is part of the Circle mining district and adjacent to the Fairbanks mining district. This report includes detailed geologic, structural, stratigraphic, and geochronologic data. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/2515.The investigation of gold and other mineral occurrences in conjunction with comprehensive geologic mapping and recently acquired geophysical data provide a scientific basis for continued mineral exploration throughout the Circle mining district project area.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/10.14509/3058419941995ground conditioncompleteNone planned-145.721463-144.48144565.58582665.368257ISO 19115 Topic CategorygeoscientificInformationAlaska Division of Geological & Geophysical SurveysAr-ArBedrockBedrock Geologic MapBedrock GeologyDGGSFaultsGeMSGeMS NCGMP09GeochronologyGeologic MapGeologyGraniteGranodioriteHornfelsK-ArMarbleMineral ExplorationMineral ResourcesMineralogyMineralsMiningPlutonic RocksPlutonsPorphyryQuartziteSchistAlaska Division of Geological & Geophysical SurveysBates CreekBear CreekBedrock CreekBirch CreekBonanza CreekBottom Dollar CreekBoulder CreekBuckley Bar CreekButte CreekCircle Hot SpringsCripple CreekCrooked CreekDeadwoodDeadwood CreekDome CreekEagle CreekEagle SummitEasley CreekFish CreekGold Dust CreekGraveyard CreekGreenhorn CreekHalf Dollar CreekHoldem CreekHot Springs CreekIndependence CreekKetchem CreekKetchem DomeMammoth CreekMastodon CreekMastodon DomeMiller CreekPinnell MountainPinnell TrailPorcupine CreekPorcupine DomePortage CreekPtarmigan CreekSawpit CreekSlate CreekSwitch CreekTraverse CreekTwo-Bit CreekWillow CreekYankee CreekAlaska Division of Geological & Geophysical SurveysTintina FaultWalker, J.D., Geissman, J.W., Bowring, S.A, and Babcock, L.E., comp., 2012, Geologic Time Scale v. 4.0: Geological Society of AmericaCretaceousPaleozoicTertiaryThis 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).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.Alaska Division of Geological & Geophysical SurveysMetadata Managermailing and physical

3354 College Road

FairbanksAK99709-3707USA(907)451-5020(907)451-5050dggspubs@alaska.gov8 am to 4:30 pm, Monday through Friday, except State holidaysPlease 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.This map has been compiled and drawn under contract between the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, and WGM, Mining and Geological Consultants, Inc. Airborne geophysical data for the area were acquired by Dighem Surveys & Processing, Inc. in 1993. Geologic map conversion to the GeMS standard was funded by the USGS National Cooperative Geologic Mapping Program under StateMap award number G20AC00367, 2020, and the State of Alaska General Fund. 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.Reger, R.D.Pinney, D.S.1995Report of InvestigationRI 95-2CFairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys1 sheet, scale 1:63,360https://doi.org/10.14509/2516Wiltse, M.A.Metz, P.A.Robinson, M.S.Pinney, D.S.1994Public Data FilePDF 94-30BFairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys6 p., 1 DVDhttps://doi.org/10.14509/1656Wiltse, M.A.Metz, P.A.Robinson, M.S.Pinney, D.S.1994Public Data FilePDF 94-30AFairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys86 p., 1 sheet, scale 1:63,360https://doi.org/10.14509/1655Wiltse, M.A.Reger, R.D.Newberry, R.J.Pessel, G.H.Pinney, D.S.Robinson, M.S.Solie, D.N.1995Report of InvestigationRI 95-2AFairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys1 sheet, scale 1:63,360https://doi.org/10.14509/2514Certainty in attribute interpretation varies throughout the map and is scale-dependent. Attribute fields within each feature class record the authors' degree of confidence in the existence or identity of applicable features.All polygon features were topologically validated according to specifications of the AK GeMS geologic mapping schema.This publication is released as a DGGS Report of Investigations (RI). An RI is the completed product of original research and analysis, and RIs use professional cartography and undergo rigorous peer review, editing, and revision.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.Burns, L.E.Barefoot, J.D.Woods, Rebecca-EllenWGM Mining and Geological Consultants, Inc.Dighem Surveys and Processing2019Geophysical ReportGPR 2019-3Fairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys4 phttps://doi.org/10.14509/30167paper2019publication dateBurns, L.E. and others, 2019Geologic map compilationEkberg, P.G.Hendricks, M.D.Athey, J.E.2021Miscellaneous PublicationMP 169Fairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys7 phttps://doi.org/10.14509/30584paper2021publication dateEkberg, P.G. and others, 2021GIS analysis and digital cartographyHendricks, M.D.Ekberg, P.G.Athey, J.E.Wyatt, W.C.Willingham, A.L.Naibert, T.J.2021Miscellaneous PublicationMP 170Fairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys10 phttps://doi.org/10.14509/30669paper2021publication dateHendricks, M.D. and others, 2021GIS analysis and digital cartographyNewberry, R.J.Wiltse, M.A.Queen, L.K.Pinney, D.S.1994Public Data FilePDF 94-32AFairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys7 p., 1 sheet, scale 1:63,360https://doi.org/10.14509/165863360paper1994publication dateNewberry, R.J. and others, 1994Geologic map compilationWiltse, M.A.Metz, P.A.Robinson, M.S.Pinney, D.S.1994Public Data FilePDF 94-30BFairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys6 p., 1 DVDhttps://doi.org/10.14509/1656paper1994publication dateWiltse, M.A. and others, 1994Geologic map compilationWiltse, M.A.Metz, P.A.Robinson, M.S.Pinney, D.S.1994Public Data FilePDF 94-30AFairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys86 p., 1 sheet, scale 1:63,360https://doi.org/10.14509/165563360paper1994publication dateWiltse, M.A. and others, 1994Geologic map compilationWiltse, M.A.Queen, L.K.Pinney, D.S.1994Public Data FilePDF 94-31AFairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys33 p., 1 sheet, scale 1:63,360https://doi.org/10.14509/165763360paper1994publication dateWiltse, M.A. and others, 1994Geologic map compilationU.S. Geological Survey National Cooperative Geologic Mapping Program2020Techniques and MethodsTM 11-B10United StatesU.S. Geological Survey1 phttps://dggs.alaska.gov/pubs/id/30585paper2020publication dateU.S. Geological Survey National Cooperative Geologic Mapping Program, 2020GIS analysis and digital cartographyBedrock geologic mapping - The Alaska Divisions of Geological & Geophysical Surveys (DGGS) staff conducted field studies throughout the map area. Geologists observed details about the variations in texture, lithology, and orientation of the map units, collected rock samples, noted outcrop descriptions, and conducted structural measurements. Field observations were integrated with existing literature and geophysical survey data.1994Laboratory data compilation - Selected samples were submitted for geochronologic and geochemical analysis. The results were used to further interpret the stratigraphic and structural history of the map area.1995Geologic map compilation - The geologic data were digitized from a mylar compilation of geologic field maps produced on USGS topo bases of the area. Locations were determined visually using topographic maps at scales of 1:63,360 and 1:25,000. Geologic contacts, samples, and station locations were visually hand-plotted onto stable mylar bases from the field maps. Data were digitally compiled and plotted using ArcInfo software. The coordinates of sample and station locations were determined using a digitizing tablet output. The map and report received technical review and editing by several scientists familiar with the subject matter. The authors incorporated the reviewers' suggestions into the final draft when deemed appropriate.Burns, L.E. and others, 2019Newberry, R.J. and others, 1994Wiltse, M.A. and others, 1994Wiltse, M.A. and others, 1994Wiltse, M.A. and others, 19941995GIS analysis and digital cartography - This data distribution package's geologic and geographic features were organized and attributed according to the AK GeMS geologic mapping schema. The data were then programmatically transformed to provide download options in three formats: (1) an AK GeMS data package that includes the complete AK GeMS database and associated files, (2) a GeMS data package that is a conversion of the AK GeMS database into the base GeMS standard published by the USGS, and (3) a shapefile data package that includes two simple shapefile representations of the data.Ekberg, P.G. and others, 2021Hendricks, M.D. and others, 2021U.S. Geological Survey National Cooperative Geologic Mapping Program, 20202021vectorUniversal Transverse Mercator60.999600-1470500000.0000000coordinate pair.00000001.00000001MetersNAD27Clarke 18666378206.40000000037294.978698199999997circle_mining_district_bedrock_ak_gems_db_pkgGeodatabase, layer files, style files, and fontsAlaska Division of Geological & Geophysical Surveyscircle_mining_district_bedrock_ak_gems_db_pkgcircle_mining_district_bedrock_gems_db_pkgGeodatabase, layer files, style files, and fontsAlaska Division of Geological & Geophysical Surveyscircle_mining_district_bedrock_gems_db_pkgcircle_mining_district_bedrock_gems_shapefile_pkgShapefiles and open data filesAlaska Division of Geological & Geophysical Surveyscircle_mining_district_bedrock_gems_shapefile_pkgAlaska Division of Geological & Geophysical SurveysMetadata Managermailing and physical

3354 College Road

FairbanksAK99709-3707USA(907)451-5020(907)451-5050dggspubs@alaska.gov8 am to 4:30 pm, Monday through Friday, except State holidaysPlease 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.RI 95-2BThe 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.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.Contact DGGS for current pricinggeodatabasehttps://doi.org/10.14509/2515Free download20210904Alaska Division of Geological & Geophysical SurveysSimone MontayneMetadata Managermailing and physical

3354 College Road

FairbanksAK99709-3707USA(907)451-5020(907)451-5050dggspubs@alaska.gov8 am to 4:30 pm, Monday through Friday, except State holidaysFGDC Content Standard for Digital Geospatial MetadataFGDC-STD-001-1998If 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.https://dggs.alaska.gov/metadata/dggs.extdggs metadata extensions