Identification_Information: Citation: Citation_Information: Originator: Werdon, M.B. Originator: Newberry, R.J. Originator: Athey, J.E. Originator: Szumigala, D.J. Originator: Freeman, L.K. Originator: Burns, L.E. Originator: Hicks, S.A. Publication_Date: 2024 Title: Bedrock geologic map of the Big Hurrah-Council-Bluff area, Southern Seward Peninsula, Alaska Geospatial_Data_Presentation_Form: geodatabase Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2024-7 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 20 p., 1 sheet, scale 1:50,000 Online_Linkage: https://doi.org/10.14509/31308 Description: Abstract: Bedrock geologic map of the Big Hurrah-Council-Bluff area, Southern Seward Peninsula, Alaska, Report of Investigation 2024-7, presents bedrock geologic mapping from the blueschist-facies-metamorphosed, Late Proterozoic to Devonian Nome Complex was conducted by the Alaska Division of Geological & Geophysical Surveys (DGGS) on southern Seward Peninsula, Alaska. This map, covering portions of the Solomon C-4, C-5, D-4, D-5, and the southern Bendeleben A-4 quadrangles, includes new mapping by DGGS in the summer of 2006 and incorporates previous mapping conducted by DGGS in 2003 and 2004. Surficial geologic mapping was also conducted in the area. This 595-square-mile, 1:50,000-scale, bedrock geologic map coincides with portions of the DGGS Council airborne magnetic and resistivity survey. The geophysical survey and geologic map are part of the State of Alaska's Airborne Geophysical/Geological Mineral Inventory program, focusing on enhancing public knowledge of Alaska's geology and mineral districts. More than 1 million ounces of placer gold have been extracted from the map area since the turn of the century, with most production derived from the Casadepaga and Solomon rivers and Ophir Creek. Widespread low-sulfide, gold-bearing quartz veins of Cretaceous age were the primary lode source for the placer gold. Approximately 27,000 ounces of gold were produced from low-sulfide quartz veins at the Big Hurrah lode gold mine between 1903 and 1907. Other notable lode gold prospects in the map area include Silver (Flynn), West Creek, and an unnamed prospect at the head of Albion Creek. The Bluff area along Norton Sound has both lode gold and mercury prospects. The map area contains numerous occurrences of silicified marble with anomalous geochemistry of uncertain age and genetic origin. Various lithologies of the Layered sequence subdivision of the Nome Complex, primarily the Mixed unit, have the potential to host sedimentary exhalative (SEDEX) mineralization of Late Devonian to possibly Mississippian(?) age, as found elsewhere on the Seward Peninsula. The complete report, geodatabase, and ESRI fonts and style files are available from the Alaska Division of Geological & Geophysical Surveys website: http://doi.org/10.14509/31308. Purpose: This geologic map was part of the State of Alaska's Airborne Geophysical/Geological Mineral Inventory program, the focus of which was to enhance public knowledge of Alaska's geology and mineral districts. The map area is of current and historic interest for potential mineral resource development. Supplemental_Information: 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 Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2003 Ending_Date: 2024 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -164.501823 East_Bounding_Coordinate: -163.611926 North_Bounding_Coordinate: 65.096209 South_Bounding_Coordinate: 64.567901 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Amphibolite Theme_Keyword: Amphibolite Facies Units Theme_Keyword: Ar-Ar Theme_Keyword: Basalt Theme_Keyword: Bedrock Theme_Keyword: Bedrock Geologic Map Theme_Keyword: Bedrock Geology Theme_Keyword: Contact Theme_Keyword: Cross Section Theme_Keyword: DGGS Theme_Keyword: Dike Theme_Keyword: Dip Slip Theme_Keyword: Folding Theme_Keyword: Folds Theme_Keyword: Formations Theme_Keyword: Gabbro Theme_Keyword: Geologic Theme_Keyword: Geologic Map Theme_Keyword: Geologic Mapping Standards Theme_Keyword: Geological Process Theme_Keyword: Geology Theme_Keyword: Igneous Theme_Keyword: Igneous Rocks Theme_Keyword: Marble Theme_Keyword: Metasedimentary Rocks Theme_Keyword: Metavolcanic rocks Theme_Keyword: Mica Theme_Keyword: Mineral Assessment Theme_Keyword: Mineral Deposit Theme_Keyword: Mineral Exploration Theme_Keyword: Mineral Localities Theme_Keyword: Mineral Resources Theme_Keyword: Quartz Theme_Keyword: Quartzite Theme_Keyword: Schist Theme_Keyword: Sediment Theme_Keyword: Sedimentary Theme_Keyword: Sedimentary Rocks Theme_Keyword: Strike Slip Theme_Keyword: Syenite Theme_Keyword: Thrust Fault Theme_Keyword: U-Pb Theme_Keyword: Wackestone Theme_Keyword: Zircon Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Adams Creek Place_Keyword: Ball Creek Place_Keyword: Big Hurrah Mine Place_Keyword: Boise Creek Place_Keyword: Coal Creek Place_Keyword: Council Place_Keyword: Council Mining District Place_Keyword: Dog Creek Place_Keyword: Dry Creek Place_Keyword: Fish Creek Place_Keyword: Grouse Creek Place_Keyword: Harlem Creek Place_Keyword: Johns Creek Place_Keyword: Johnson Creek Place_Keyword: Mile Creek Place_Keyword: Mitchell Creek Place_Keyword: Moonlight Creek Place_Keyword: Offield Creek Place_Keyword: Oro Fino Creek Place_Keyword: Squirrel Creek Place_Keyword: Winston Creek Stratum: Stratum_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Stratum_Keyword: Casadepaga Schist Stratum_Keyword: Solomon Schist Temporal: Temporal_Keyword_Thesaurus: 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 Temporal_Keyword: Devonian Temporal_Keyword: Early Cretaceous Temporal_Keyword: Late Cretaceous Temporal_Keyword: Ordovician Temporal_Keyword: Paleozoic Temporal_Keyword: Precambrian Temporal_Keyword: Proterozoic Temporal_Keyword: Quaternary 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). 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. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Facsimile_Telephone: (907)451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Contact_Instructions: 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. Data_Set_Credit: R.J. Newberry determined microprobe, hand-held XRF, and XRD mineral compositions for this study. We thank Alison Till (USGS, Anchorage, Alaska) and Bob Swenson (DGGS) for providing technical reviews of the bedrock geologic map. This geologic mapping project was primarily funded by the Alaska State Legislature and administered by the Department of Natural Resources/DGGS and implemented through the Airborne Geophysical/Geological Mineral Inventory program. Partial funding was also provided by the U.S. Geological Survey STATEMAP program under STATEMAP award numbers 04HQAG0061 and 06HQAG0024. Amy E. Macpherson digitized the data into into the GeMS format and provided cartographic support. Ally M. Steinleitner quality controlled, and then finalized the GeMS database. Geologic map conversion to the GeMS standard was funded by the USGS National Cooperative Geologic Mapping Program under StateMap award number G21AC10706, 2021, 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. Cross_Reference: Citation_Information: Originator: Burns, L.E. Originator: Fugro Airborne Surveys Originator: Stevens Exploration Management Corp. Publication_Date: 2003 Title: Plot files of the airborne geophysical survey data of the Council area, Seward Peninsula, Alaska Series_Information: Series_Name: Geophysical Report Issue_Identification: GPR 2003-1 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 1 DVD Online_Linkage: https://doi.org/10.14509/2884 Cross_Reference: Citation_Information: Originator: Layer, P.W. Originator: Werdon, M.B. Originator: Newberry, R.J. Originator: Drake, Jeffrey Originator: Benowitz, J.A. Publication_Date: 2015 Title: 40Ar/39Ar data, Seward Peninsula, Alaska Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2015-3 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 59 p Online_Linkage: https://doi.org/10.14509/29413 Cross_Reference: Citation_Information: Originator: Newberry, R.J. Originator: Werdon, M.B. Originator: Stevens, D.S.P. Originator: Athey, J.E. Originator: Szumigala, D.J. Publication_Date: 2005 Title: Geologic map of the Council area, Solomon D-4 and Bendeleben A-4 quadrangles, Seward Peninsula, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2005-1D Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:50,000 Online_Linkage: https://doi.org/10.14509/14448 Cross_Reference: Citation_Information: Originator: Newberry, R.J. Originator: Werdon, M.B. Originator: Athey, J.E. Originator: Szumigala, D.J. Publication_Date: 2005 Title: Bedrock geologic map of the Council area, Solomon D-4 and Bendeleben A-4 quadrangles, Seward Peninsula, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2005-1E Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:50,000 Online_Linkage: https://doi.org/10.14509/7194 Cross_Reference: Citation_Information: Originator: Stevens, D.S.P. Publication_Date: 2005 Title: Surficial geologic map of the Big Hurrah area, northern half of the Solomon C-5 Quadrangle, Seward Peninsula, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2005-1C Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:50,000 Online_Linkage: https://doi.org/10.14509/14445 Cross_Reference: Citation_Information: Originator: Stevens, D.S.P. Publication_Date: 2005 Title: Surficial geologic map of the Council area, Solomon D-4 and Bendeleben A-4 quadrangles, Seward Peninsula, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2005-1F Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:50,000 Online_Linkage: https://doi.org/10.14509/14446 Cross_Reference: Citation_Information: Originator: Stevens, D.S.P. Publication_Date: 2024 Title: Surficial-geologic map of the Big Hurrah-Council-Bluff area, southern Seward Peninsula, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2024-6 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 9 p., 1 sheet, scale 1:50,000 Online_Linkage: https://doi.org/10.14509/31054 Cross_Reference: Citation_Information: Originator: Werdon, M.B. Originator: Newberry, R.J. Originator: Szumigala, D.J. Originator: Athey, J.E. Originator: Hicks, S.A. Publication_Date: 2005 Title: Bedrock geologic map of the Big Hurrah area, northern half of the Solomon C-5 Quadrangle, Seward Peninsula, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2005-1B Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:50,000 Online_Linkage: https://doi.org/10.14509/7193 Cross_Reference: Citation_Information: Originator: Werdon, M.B. Originator: Newberry, R.J. Originator: Szumigala, D.J. Originator: Freeman, L.K. Originator: Athey, J.E. Publication_Date: 2007 Title: Major-oxide, minor-oxide, trace-element, geochemical, and non-carbonate carbon data from rocks collected in the Solomon and Nome quadrangles, Seward Peninsula, Alaska in 2006 Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2007-4 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 49 p Online_Linkage: https://doi.org/10.14509/15840 Cross_Reference: Citation_Information: Originator: Werdon, M.B. Originator: Stevens, D.S.P. Originator: Newberry, R.J. Originator: Szumigala, D.J. Originator: Athey, J.E. Originator: Hicks, S.A. Publication_Date: 2005 Title: Geologic map of the Big Hurrah area, northern half of the Solomon C-5 Quadrangle, Seward Peninsula, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2005-1A Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:50,000 Online_Linkage: https://doi.org/10.14509/14447 Cross_Reference: Citation_Information: Originator: Werdon, M.B. Originator: Stevens, D.S.P. Originator: Newberry, R.J. Originator: Szumigala, D.J. Originator: Athey, J.E. Originator: Hicks, S.A. Publication_Date: 2005 Title: Explanatory booklet to accompany geologic, bedrock, and surficial maps of the Big Hurrah and Council areas, Seward Peninsula, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2005-1 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 24 p Online_Linkage: https://doi.org/10.14509/7192 Cross_Reference: Citation_Information: Originator: Werdon, M.B. Originator: Szumigala, D.J. Originator: Newberry, R.J. Originator: Athey, J.E. Originator: Hicks, S.A. Publication_Date: 2005 Title: Major-oxide, minor-oxide, trace-element, geochemical, and non-carbonate carbon data from rocks collected in the Solomon, Bendeleben, and Nome quadrangles, Seward Peninsula, Alaska in 2003 and 2004 Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2005-2 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 46 p Online_Linkage: https://doi.org/10.14509/7130 Cross_Reference: Citation_Information: Originator: Young, L.E. Publication_Date: 1995 Title: Possible thrust windows on the central Seward Peninsula, Alaska Series_Information: Series_Name: Professional Report Issue_Identification: PR 117J Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: p. 97-113 Online_Linkage: https://doi.org/10.14509/2326 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Attribute 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. Logical_Consistency_Report: All polygon features were topologically validated according to the AK GeMS geologic mapping schema specifications. Completeness_Report: This publication is part of 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. Positional_Accuracy: Horizontal_Positional_Accuracy: 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. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Hendricks, M.D. Originator: Macpherson, A.E. Originator: Athey, J.E. Originator: Wyatt, W.C. Originator: Montayne, Simone Originator: Buchanan, Wes Originator: Rivera, P.G. Originator: Steinleitner, A.M. Publication_Date: 2024 Title: AK GeMS data dictionary: A description of the Alaska geologic mapping schema Series_Information: Series_Name: Miscellaneous Publication Issue_Identification: MP 170 v. 2 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 13 p Online_Linkage: https://doi.org/10.14509/31172 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2024 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Hendricks, M.D. and others, 2024 Source_Contribution: GIS analysis and digital cartography Source_Information: Source_Citation: Citation_Information: Originator: Macpherson, A.E. Originator: Hendricks, M.D. Originator: Athey, J.E. Publication_Date: 2024 Title: AK GeMS Symbology: A description of the AK GeMS Style File Series_Information: Series_Name: Miscellaneous Publication Issue_Identification: MP 169 v. 2 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 6 p Online_Linkage: https://doi.org/10.14509/31101 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2024 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Macpherson, A.E. and others, 2024 Source_Contribution: GIS analysis and digital cartography Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey National Cooperative Geologic Mapping Program Publication_Date: 2020 Title: GeMS (Geologic Map Schema) - A standard format for the digital publication of geologic maps Series_Information: Series_Name: Techniques and Methods Issue_Identification: TM 11-B10 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 p Online_Linkage: https://dggs.alaska.gov/pubs/id/30585 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2020 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020 Source_Contribution: GIS analysis and digital cartography Process_Step: Process_Description: Geologic mapping - This bedrock geologic map was produced from about 400 person-days of fieldwork conducted during August 2003, June through August 2004, and June and July 2006. Field observations and rock samples were collected at 6,674 stations throughout the map area and adjacent portions of the Solomon and Bendeleben quadrangles. Airborne magnetic and resistivity data were used to identify anomalies for field investigation, locate geophysically inferred faults and unit boundaries in the field, and extend mapped contacts through regions covered by vegetation or surficial deposits. Additionally, vertical derivative techniques were applied to the geophysical data and subsequently used to enhance map interpretations. Magnetic susceptibility measurements were made on outcrops and hand samples throughout the map area to characterize lithologic units and to verify their signature in airborne magnetic data. Small shovels were used to dig down to bedrock where thinly covered by surficial deposits. Unit descriptions are based on field observations, petrographic study, and modal analysis of 698 thin sections, geochemical analyses, and geochronologic data. Approximately 125 rocks were analyzed for major- and minor-oxides and trace elements. These data were used to determine permissible protoliths for metamorphic rocks and to assign root names and trace-element-indicated tectonic settings to igneous and metamorphosed igneous rocks according to established petrologic nomenclature. Hundreds of hand-held X-ray fluorescence (XRF) analyses were made on cut surfaces of fine-grained metamorphic rocks in the field to help distinguish their composition and unit assignment. One U-Pb laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) detrital zircon analysis was obtained to determine the age of a felsic metavolcanic rock. Thirty-six 40Ar/39Ar laser step-heating analyses were obtained for minerals from metamorphic rocks, metamorphic veins, hydrothermal veins, and igneous rocks, as well as whole-rock analyses of Quaternary basalt. These data were used to constrain depositional and protolith ages, compositions and paleo-tectonic settings, and the nature and timing of metamorphism, intrusive and extrusive igneous rocks, and late-metamorphic and hydrothermal veins that are both gold-bearing and barren. To evaluate the map area's mineral-resource potential, 426 rocks that were either visibly mineralized or had features that suggested the potential to be mineralized were analyzed for geochemical trace elements. Process_Date: 2024 Process_Step: Process_Description: GIS 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 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. Source_Used_Citation_Abbreviation: Hendricks, M.D. and others, 2024 Source_Used_Citation_Abbreviation: Macpherson, A.E. and others, 2024 Source_Used_Citation_Abbreviation: U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020 Process_Date: 2024 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 7 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -141 Latitude_of_Projection_Origin: 0 False_Easting: 500000.000000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: .00000001 Ordinate_Resolution: .00000001 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: NAD27 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.9786982 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: casadepaga_bedrock_ak_gems_db Entity_Type_Definition: Geodatabase, layer files, style files, and fonts Entity_Type_Definition_Source: DGGS Entity_Attribute_Layer_Name: casadepaga_bedrock_ak_gems_db Detailed_Description: Entity_Type: Entity_Type_Label: casadepaga_bedrock_gems_db Entity_Type_Definition: Geodatabase, layer files, style files, and fonts Entity_Type_Definition_Source: DGGS Entity_Attribute_Layer_Name: casadepaga_bedrock_gems_db Detailed_Description: Entity_Type: Entity_Type_Label: casadepaga_bedrock_gems_shapefile Entity_Type_Definition: Shapefiles and open data files Entity_Type_Definition_Source: DGGS Entity_Attribute_Layer_Name: casadepaga_bedrock_gems_shapefile Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Facsimile_Telephone: (907)451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Contact_Instructions: 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. Resource_Description: RI 2024-7 Distribution_Liability: 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. Standard_Order_Process: Non-digital_Form: 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. Fees: Contact DGGS for current pricing Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: geodatabase Format_Information_Content: geologic map Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.14509/31308 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20250115 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Person: Simone Montayne Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Facsimile_Telephone: (907)451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 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. Metadata_Extensions: Online_Linkage: https://dggs.alaska.gov/metadata/dggs.ext Profile_Name: dggs metadata extensions