Reifenstuhl, R.R.Dover, J.H.Newberry, R.J.Clautice, K.H.Liss, S.A.Blodgett, R.B.Weber, F.R.1998Interpretive geologic bedrock map of the Tanana A-1 and A-2 quadrangles, central AlaskageodatabasePublic Data FilePDF 98-37B v. 1.1Fairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys17 p., 1 sheet, scale 1:63,360https://doi.org/10.14509/1864Public Data File 98-37B v. 1.1, Interpretive geologic bedrock map of the Tanana A-1 and A-2 quadrangles, central Alaska, provides detailed (1:63,360-scale) geologic mapping of portions of U.S. Geological Survey Tanana A-1 and A-2 quadrangles. The map area is part of the Yukon-Tanana Upland physiographic province, the Manley Hot Springs-Tofty mining districts, and adjacent to the Rampart mining district to the south. This geologic map data release includes detailed geologic, structural, stratigraphic, and geochronologic information. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/1864.The Tanana A-1 and A-2 Quadrangles lie between the villages of Rampart, on the Yukon River, and Manley Hot Springs, at the terminus of the Elliott Highway. At the time the report was published, the area towns were not part of any municipal or local governmental jurisdiction. The investigation of gold, tin, and other mineral occurrences in conjunction with comprehensive geologic mapping and recently-acquired geophysical data provide a scientific basis for expanded mineral exploration and development that can lead to the economic growth and the creation of new jobs needed by the Rampart-Manley-Tofty region's inhabitants and the State of Alaska. These objectives are consistent with the statewide goals and priorities articulated for the Department of Natural Resources by Alaska's Governor in his Executive Budget Summary for Fiscal Year 1997.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/10.14509/305841997ground conditionNone planned-151.018782-149.97186665.26652964.983307ISO 19115 Topic CategorygeoscientificInformationAlaska Division of Geological & Geophysical SurveysAge DatesAnalyses and SamplingAr-ArBasaltBedrockBedrock Geologic MapBedrock GeologyBrachiopodsBuchiaCIPW NormsCeriumConglomerateConodontsCorrelationDolomiteDomeEconomic GeologyFaultsFoldingFossilsGastropodsGeMSGeMS NCGMP09Geochemical SurveysGeochemistryGeochronologyGeological ProcessGeologyGlaciersGoldGraniteGraywackeGreenstoneHazardsHornfelsIgneousIsotopesK-ArLimestoneMajor OxidesMegafossilsMetalsMetamorphicMineralogyMineralsModal AnalysisMonaziteMudstoneMuscoviteNiobiumPaleontologyPegmatitePermeabilityPetroleumPlacerPlutonicPlutonsProduction DataQuartziteResource AssessmentResourcesRocksSTATEMAP ProjectSandstoneSedimentarySerpentiniteShaleSiltstoneSilverSurfaceSurficialTalusTrilobitesUltramaficVolcanicWackestoneAlaska Division of Geological & Geophysical SurveysAlabama CreekAlameda CreekAllen CreekAlpha CreekAmerican CreekApplegate CreekBaker CreekBaker LakeBean RidgeBlowback CreekBoothby CreekBoston CreekBoulder CreekBoulder RidgeCache CreekCalifornia CreekCamp CreekChicago CreekCold CreekColorado CreekCooney CreekDeadwood CreekDeep CreekDome CreekDoric CreekEurekaEureka CreekEureka DomeGlenn CreekGoff CreekGold Basin CreekGranite CreekHorse CreekHot Springs Mining DistrictHutlinana CreekHutlitakwa CreekJoe Bush CreekJoseph CreekKarshner CreekKentucky CreekKillarney CreekManley BasinManley Hot SpringsManley Hot Springs DomeMcCloud Ranch CreekMcKinley CreekMinook CreekNew York CreekNugget CreekOhio CreekOmega CreekOrum CreekPatterson CreekPioneer CreekQuartz CreekQueen Twin CreekRampart Mining DistrictReady Money CreekRhode Island CreekRoughtop MountainSandusky CreekSeattle CreekSerpentine RidgeSilverbow CreekSkookum CreekStevens CreekSullivan CreekSunde CreekTamarack CreekTexas CreekThanksgiving CreekToftyTolovana Mining DistrictTonawanda CreekUnanimous CreekUtah CreekWashington CreekWolverine CreekYukon RiverWalker, J.D., Geissman, J.W., Bowring, S.A, and Babcock, L.E., comp., 2012, Geologic Time Scale v. 4.0: Geological Society of AmericaAlbianCambrianEarly CretaceousEarly JurassicEarly OrdovicianFamennianLate CretaceousLate DevonianLate JurassicMesozoicMiddle OrdovicianMississippianOrdovicianPaleocenePaleozoicPermianProterozoicSilurianTertiaryTriassicThis 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 physical3354 College RoadFairbanksAK99709-3707USA(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.Funding for the geologic mapping and geochronologic dating performed for this project was provided by the U.S. Geological Survey STATEMAP Program under award number 03HQAG0055 and by the Alaska State Legislature. 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.Pinney, D.S.1998Derivative engineering geologic map of the Tanana A-1 and A-2 quadrangles, central AlaskaPublic Data FilePDF 98-37DFairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys1 sheet, scale 1:63,360https://doi.org/10.14509/1866Pinney, D.S.1998Surficial geologic map of the Tanana A-1 and A-2 quadrangles, central AlaskaPublic Data FilePDF 98-37CFairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys1 sheet, scale 1:63,360https://doi.org/10.14509/1865Reifenstuhl, R.R.Dover, J.H.Newberry, R.J.Clautice, K.H.Pinney, D.S.Liss, S.A.Blodgett, R.B.Weber, F.R.1998Geologic map of the Tanana A-1 and A-2 quadrangles, central AlaskaPublic Data FilePDF 98-37A v. 1.1Fairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys19 p., 1 sheet, scale 1:63,360https://doi.org/10.14509/1863This data release provides legacy geospatial data converted to the GeMS and AK GeMS specifications. Attribute fields within each feature class are populated using corresponding applicable values from the GeMS and AK GeMS specifications. When known, certainty in attribute interpretation is indicated in the relevant fields. Attribute accuracy varies throughout the map and is scale-dependent.All polygon features were topologically validated according to specifications of the AK GeMS geologic mapping schema.This publication is a DGGS Public Data File (PDF). The objective of the PDF series, published from 1983 through 1999, was to make project and field data available to the public as soon as possible. PDFs were not reviewed or edited.This data release provides legacy geospatial data converted to the GeMS and AK GeMS specifications. To record the originating authors' degree of confidence in the location of features, the data include descriptive fields within each feature class and accompanying orientation and location confidence lookup tables. When location accuracy values are unavailable, users must infer positional accuracy based on standard geologic mapping practices of the investigation era. Field stations were located using hand-held GPS units, however for fieldwork conducted before 2000, Selective Availability limited location accuracy of the coordinates to roughly 100 meters. Certainty in feature boundaries or location varies throughout the map.Burns, L.E.Graham, G.R.C.Barefoot, J.D.Woods, Rebecca-EllenDighemPritchard, R.A.WGM, Inc.Stevens Exploration Management Corp.Fugro Airborne Surveys Corp.2020Rampart-Manley electromagnetic and magnetic airborne geophysical survey data compilationGeophysical ReportGPR 2020-3Fairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys13 phttps://doi.org/10.14509/30417paper2020publication dateBurns, L.E. and others, 2020Bedrock geologic mappingEakin, H.M.1912The Rampart and Hot Springs regionsBulletinB 520United StatesU.S. Geological Surveyp. 271-287https://dggs.alaska.gov/pubs/id/4819paper1912publication dateEakin, H.M., 1912, p. 271-287Bedrock geologic mappingEakin, H.M.1913A geologic reconnaissance of a part of the Rampart Quadrangle, AlaskaBulletinB 535United StatesU.S. Geological Survey38 p., 2 sheets, scale 1:250,000https://dggs.alaska.gov/pubs/id/3412250000paper1913publication dateEakin, H.M., 1913Bedrock geologic mappingEkberg, P.G.Hendricks, M.D.Athey, J.E.2021AK GeMS symbology: A description of the AK GeMS style fileMiscellaneous 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.2021AK GeMS data dictionary: A description of the Alaska geologic mapping schemaMiscellaneous 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 cartographyLiss, S.A.Reifenstuhl, R.R.Clautice, K.H.Bundtzen, T.K.Newberry, R.J.Dover, J.H.Blodgett, R.B.1998Rock geochemistry from the Manley mining district (Tanana A-1 and A-2 quadrangles with some samples from adjacent quadrangles)Public Data FilePDF 98-39Fairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys41 p., 1 DVDhttps://doi.org/10.14509/1868paper1998publication dateLiss, S.A. and others, 1998Laboratory data compilationYeend, Warren1990Gold placers, geomorphology, and paleo-drainage of Eureka Creek and Tofty areas, AlaskaBulletinB 1946United StatesU.S. Geological Surveyp. 107-109https://dggs.alaska.gov/pubs/id/4503paper1990publication dateYeend, Warren, 1990, p. 107-109Bedrock geologic mappingU.S. Geological Survey National Cooperative Geologic Mapping Program2020GeMS (Geologic Map Schema) - A standard format for the digital publication of geologic mapsTechniques 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 - From June 16 and July 8, 1997, 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. Bedrock mappers recorded observations on 1:50,000 and 1:63,360-scale topographic base maps and field stations were located using hand held GPS units. Field observations were integrated with existing literature and geophysical survey data.Burns, L.E. and others, 2020Eakin, H.M., 1912, p. 271-287Eakin, H.M., 1913Yeend, Warren, 1990, p. 107-1091997Laboratory 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.Liss, S.A. and others, 19981998Geologic map compilation - The geologic data were digitized from a mylar compilation of geologic field maps produced on USGS topo bases of the area. Contacts and other geologic features were determined visually using topographic maps at scales of 1:63,360 and 1:25,000, field station notes, and GPS location data. Geologic features were visually hand-plotted onto stable mylar bases from the field maps and then digitally compiled and plotted using ArcInfo software. 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.1998GIS 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 Mercator50.999600-1530500000.0000000coordinate pair.00000001.00000001MetersNAD27Clarke 18666378206.40000000037294.978698199999997tanana_a1_a2_quads_bedrock_ak_gems_db_pkgGeodatabase, layer files, style files, and fontsAlaska Division of Geological & Geophysical Surveystanana_a1_a2_quads_bedrock_ak_gems_db_pkgtanana_a1_a2_quads_bedrock_gems_db_pkgGeodatabase, layer files, style files, and fontsAlaska Division of Geological & Geophysical Surveystanana_a1_a2_quads_bedrock_gems_db_pkgtanana_a1_a2_quads_bedrock_gems_shapefile_pkgShapefiles and open data filesAlaska Division of Geological & Geophysical Surveystanana_a1_a2_quads_bedrock_gems_shapefile_pkgAlaska Division of Geological & Geophysical SurveysMetadata Managermailing and physical3354 College RoadFairbanksAK99709-3707USA(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.PDF 98-37B v. 1.1The 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/10.14509/1864Free download20210915Alaska Division of Geological & Geophysical SurveysSimone MontayneMetadata Managermailing and physical3354 College RoadFairbanksAK99709-3707USA(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