Preliminary geologic map of the Nome C-1 Quadrangle, Seward Peninsula, Alaska

Hummel, C.H.1962Preliminary geologic map of the Nome C-1 Quadrangle, Seward Peninsula, AlaskageodatabaseMineral Investigations Field Studies MapMF 247United StatesU.S. Geological Survey1 sheet, scale 1:63,360https://dggs.alaska.gov/pubs/id/13141Preliminary geologic map of the Nome C-1 Quadrangle, Seward Peninsula, Alaska, Mineral Investigations Field Studies Map 247, presents a geologic map of the Nome C-1 Quadrangle; it shows the distribution of unconsolidated deposits, igneous rocks, metaigneous sills, and metasedimentary units at a scale of 1:63,360. Unconsolidated deposits include glacial, glaciofluvial, alluvial, eluvial, and coastal beach sediments of Pleistocene and recent age, with locally exposed older buried beach deposits. Igneous rocks are represented by a granitic aplite sill. Metaigneous units include metagranitic and metagranodioritic sills. Metasedimentary rocks comprise interbedded marble and schist, calcareous schist, quartzite-schist assemblages, marble units, graphitic and calcareous schist, and greenstone sills, many of which display gradational contacts and lithologic variability previously assigned to the Nome Group. The map provides detailed lithologic and structural information to support geologic interpretation and mineral investigations within the quadrangle. The dataset provides geologic, structural, stratigraphic, and geochronologic information organized according to the GeMS and AK GeMS mapping schemas. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: https://dggs.alaska.gov/pubs/id/13141.The map supports geologic interpretation, mineral investigations, and regional geologic studies by illustrating lithologic variability, stratigraphic relationships, and structural features within the quadrangle.This geodatabase is organized according to the AK GeMS mapping schema Hendricks, M.D., Macpherson, A.E., Athey, J.E., Wyatt, W.C., Montayne, Simone, Buchanan, Wes, Rivera, P.G., and Steinleitner, A.M., 2024, AK GeMS data dictionary: A description of the Alaska geologic mapping schema: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 170 v. 2, 13 p. https://doi.org/10.14509/31172. 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/10.14509/30584.1962ground conditionCompleteNone planned-142.003681-140.61073965.58196664.830293ISO 19115 Topic CategorygeoscientificInformationAlaska Division of Geological & Geophysical SurveysAlluvialAmphiboliteApliteBedrockBedrock GeologyChloriteCoastalFeldsparFelsicGarnetGeneralizedGeologic MapGeologyGlacialGneissGreenstoneIgneousIntrusiveMarbleMountainMuscoviteQuartzQuartziteRocksSchistSedimentSedimentarySurficialAlaska Division of Geological & Geophysical SurveysAlbion CreekAlpha CreekAnvil CreekAnvil MountainArmy PeakBalto CreekBangor CreekBannerBanner CreekBanner PeakBarr CreekBasin CreekBear CreekBecher CreekBlatchford CreekBonanza HillBonita CreekBorg CreekBoulder CreekBourbon CreekBrush CreekBuster CreekButterfield CanyonButterfly CreekCamp CreekCanyon CreekCenter CreekCold CreekCrystal CreekCuss CreekDahl CreekDarling CreekDewey CreekDexterDexter CreekDexter PeakDiscovery CreekDivining CreekDog CreekDry CreekEdna CreekElk CreekEllis CreekElmer CreekEngstrom MountainExtra Dry CreekFlambeau RiverFlat CreekGarnet CreekGlacier CreekGold CreekGold RunGoldbottem CreekGoldbottom CreekGoose CreekGracier CreekGrose CreekGrouse CreekHart CreekHatch CreekHazel CreekHelen CreekHilda CreekHobson CreekHolyoke CreekHunker CreekHunter CreekIda CreekIngraham CreekIron CreekJorosa CreekJuly CreekJune CreekKing MountainLa Spray CreekLast Chance CreekLaurada CreekLaurado CreekLillian CreekLindblom CreekLittle CreekLost CreekLynn CreekMade CreekManila CreekMatson CreekMineral CreekMonument CreekMoolight CreekMoonlight CreekMoonlight SpringsMount BryntesonMountain CreekMyrtle CreekNancy Lee CreekNative HillNevada CreekNewton PeakNomeNome RiverOniga CreekOsborn CreekOsborn DomeOtter CreekPeluk CreekPerkinsvilleProspect CreekPtarmigan RockQueen CreekRifle CreekRock CreekRudolph CreekRussel CreekSaint Michaels CreekSampson CreekSaturday CreekSaunders CreekSeattle CreekShepard CreekSilver CreekSkookum CreekSlate CreekSledge CreekSnake RiverSomeone CreekSparkle CreekSparrow CreekSteep CreekSufus CreekSummit CreekSunby CreekThompson CreekTrout CreekTwin LakesTwin MountainTwin Mountain CreekViolet CreekWashington CreekWillow CreekWonder CreekWalker, J.D., Geissman, J.W., Bowring, S.A, and Babcock, L.E., comp., 2012, Geologic Time Scale v. 4.0: Geological Society of AmericaCenozoicMesozoicPaleozoicQuaternaryTertiaryThis 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 was converted to GeMS or digitized into GeMS by Kinney Engineering, LCC., quality controlled, and then finalized by DGGS staff (Chris Wyatt). Ally M. Steinleitner implemented final database quality control and packaging. This geologic map (or report or conversion or product, etc.) was funded by the USGS National Cooperative Geologic Mapping Program under STATEMAP award number G24AC00521, 2024, 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.Bundtzen, T.K.Reger, R.D.Laird, G.M.Pinney, D.S.Clautice, K.H.Liss, S.A.Cruse, G.R.1994Progress report on the geology and mineral resources of the Nome mining district, AlaskaPublic Data FilePDF 94-39Fairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys21 p., 2 sheets, scale 1:63,360https://doi.org/10.14509/1665Burns, L.E.Barefoot, J.D.Woods, Rebecca-EllenStevens Exploration Management Corp.2019Nome electromagnetic and magnetic airborne geophysical survey data compilationGeophysical ReportGPR 2019-11Fairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys4 phttps://doi.org/10.14509/30189Riehle, J.R.Emmel, K.S.Bolm, J.G.1981Reconnaissance report on surficial geology of the coastal area from Tolstoi Point to Cape Nome, Norton Sound, AlaskaAlaska Open-File ReportAOF 125Fairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys27 p., 3 sheets, scale 1:63,360https://doi.org/10.14509/42Robinson, M.S.Stevens, D.L.1984Geologic map of the Seward PeninsulaSpecial ReportSR 34Fairbanks, Alaska, United StatesAlaska Division of Geological & Geophysical Surveys1 sheet, scale 1:500,000https://doi.org/10.14509/2633Attribute fields within each feature class are populated using the map symbology and 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 the AK GeMS geologic mapping schema specifications.This publication is a U.S. Geological Survey Mineral Investigations Field Studies Map (MF), a series that provided detailed geologic and mineral resource information for areas of current or potential economic interest. MF maps offered focused, field-based geologic documentation supported by mapping, sampling, and analytical studies. They supplied practical, site-specific geologic data intended to assist mineral investigations, land-management decisions, and regional geologic interpretation.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.Ekberg, 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 cartographyU.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 cartographyGeologic mapping - Geologic mapping of the Nome C-1 Quadrangle was completed through field investigations that documented the distribution of unconsolidated deposits, igneous units, metaigneous sills, and metasedimentary rocks. Fieldwork included detailed observation and description of lithologies, stratigraphic contacts, structural features, and geomorphic relationships. Rock units were examined and classified based on mineralogy, texture, and weathering characteristics, and gradational contacts were traced and recorded where present. Unconsolidated deposits were mapped using surface morphology, sediment characteristics, and relative age indicators. Field data were compiled with existing geologic information to delineate unit boundaries and produce a preliminary geologic map at 1:63,360 scale. Final map compilation included organizing lithologic descriptions, standardizing unit terminology, and preparing the map layout for publication.1962Data packaging - DGGS organized and attributed the geologic and geographic features according to the AK GeMS schema, then programmatically transformed the data into four distribution formats: (1) an AK GeMS data package containing the full database and supporting files, (2) a GeMS data package converted to the USGS base standard, (3) a SQLite database file, and (4) a simplified shapefile package with shapefile representations of the data.2026vectorUniversal Transverse Mercator30.999600-1650500000.0000000coordinate pair.00000001.00000001MetersNAD27Clarke 18666378206.4294.9786982nome_c1_quad_ak_gems_db_pkgGeodatabase, layer files, style files, and fontsDGGS and USGSnome_c1_quad_ak_gems_db_pkgnome_c1_quad_gems_db_pkgGeodatabase, layer files, style files, and fontsDGGS and USGSnome_c1_quad_gems_db_pkgnome_c1_quad_gems_geopackageSQLite Database fileDGGS and USGSnome_c1_quad_gems_geopackagenome_c1_quad_gems_shapefileShapefiles and open data filesDGGS and USGSnome_c1_quad_gems_shapefileAlaska 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 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