Identification_Information: Citation: Citation_Information: Originator: Athey, J.E. Originator: Freeman, L.K. Originator: Newberry, R.J. Originator: Werdon, M.B. Originator: Szumigala, D.J. Originator: Lessard, R.R. Publication_Date: 2022 Title: Bedrock geologic map of the northern Fairbanks mining district, Circle Quadrangle, Alaska Geospatial_Data_Presentation_Form: data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2022-2 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 24 p., 1 sheet, scale 1:50,000 Online_Linkage: https://doi.org/10.14509/30891 Description: Abstract: Bedrock geologic map of the northern Fairbanks mining district, Circle Quadrangle, Alaska, Preliminary Interpretive Report 2022-2, presents whole-rock trace-element geochemistry of Nb, Rb, Sr, Y, Zr for samples collected to support geologic mapping and mineral exploration in the northern Fairbanks mining district. The analytical data tables associated with this report are available through the Alaska Geochemistry database (https://maps.dggs.alaska.gov/geochem). For a direct link to this data release, see http://doi.org/10.14509/30891. Purpose: Trace-element geochemistry for Nb, Rb, Sr, Y, Zr was obtained to help distinguish between igneous and sedimentary protoliths, and for igneous rocks to characterize and differentiate magmatic events in the area. The project area is of current and historic interest for potential mineral resource development. Supplemental_Information: >geochemistry-download: Digital data available through the Alaska Geochemistry database online. Download files include data, analytical methods, and detection limits. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2007 Currentness_Reference: ground condition Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -146.454215 East_Bounding_Coordinate: -146.003984 North_Bounding_Coordinate: 65.398443 South_Bounding_Coordinate: 65.285207 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Actinolite Theme_Keyword: Airborne Geophysical/Geological Mineral Inventory Theme_Keyword: Amphibolite Theme_Keyword: Analyses Theme_Keyword: Antimony Theme_Keyword: Arsenopyrite Theme_Keyword: Bedrock Theme_Keyword: Calcite Theme_Keyword: Chlorite Theme_Keyword: Conglomerate Theme_Keyword: DGGS Theme_Keyword: Diorite Theme_Keyword: Epidote Theme_Keyword: Feldspar Theme_Keyword: Garnet Theme_Keyword: Geologic Theme_Keyword: Geologic Map Theme_Keyword: Gold Theme_Keyword: Granite Theme_Keyword: Granodiorite Theme_Keyword: Graphite Theme_Keyword: Hematite Theme_Keyword: Hornblende Theme_Keyword: Igneous Theme_Keyword: Lode Theme_Keyword: Magnetite Theme_Keyword: Marble Theme_Keyword: Metamorphic Theme_Keyword: Metamorphic Minerals Theme_Keyword: Metamorphic Rocks Theme_Keyword: Metamorphism Theme_Keyword: Mica Theme_Keyword: Mineral Deposit Theme_Keyword: Minerals Theme_Keyword: Mining Theme_Keyword: Monzonite Theme_Keyword: Mudstone Theme_Keyword: Placer Theme_Keyword: Placer Gold Theme_Keyword: Plagioclase Theme_Keyword: Pyrite Theme_Keyword: Pyrrhotite Theme_Keyword: Quartz Theme_Keyword: Quartzite Theme_Keyword: Rocks Theme_Keyword: Sand Theme_Keyword: Schist Theme_Keyword: Sedimentary Theme_Keyword: Sericite Theme_Keyword: Staurolite Theme_Keyword: Stibnite Theme_Keyword: Tourmaline Theme_Keyword: Zircon Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Bear Creek Place_Keyword: Charity Creek Place_Keyword: Chatanika River Place_Keyword: Circle Mining District Place_Keyword: Crooked Creek Place_Keyword: Deep Creek Place_Keyword: Fairbanks Mining District Place_Keyword: Faith Creek Place_Keyword: Frozenfoot Creek Place_Keyword: Harrington Fork Place_Keyword: Hope Creek Place_Keyword: Horse Creek Place_Keyword: Idaho Creek Place_Keyword: McManus Creek Place_Keyword: Montana Creek Place_Keyword: Mount Ryan Place_Keyword: Polar Creek Place_Keyword: Pool Creek Place_Keyword: Ruby Creek Place_Keyword: Smith Creek Place_Keyword: Sourdough Creek Place_Keyword: Steese Highway Place_Keyword: Swamp Saddle Place_Keyword: Tough Luck Creek Place_Keyword: Yukon-Tanana Upland Place_Keyword: Zephyr Creek 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: Cambrian Temporal_Keyword: Cretaceous Temporal_Keyword: Early Cretaceous Temporal_Keyword: Late Proterozoic Temporal_Keyword: Proterozoic Temporal_Keyword: Tertiary 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: This project is part of the State of Alaska's Airborne Geophysical/Geological Mineral Inventory (AGGMI) program, a special multi-year investment by the state to expand Alaska's geologic and mineral resources knowledge base, catalyze future private-sector mineral exploration and development, and guide state planning. AGGMI was funded by the Alaska State Legislature and managed by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. This geologic map was partly funded by the USGS National Cooperative Geologic Mapping Program under STATEMAP award number 07HQAG0076, 2007 (fieldwork) and G20AC00367, 2020 (GeMS conversion). The State of Alaska General Fund provided additional funding. 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: Athey, J.E. Originator: Freeman, L.K. Originator: Werdon, M.B. Originator: Szumigala, D.J. Originator: Lessard, R.R. Originator: Newberry, R.J. Originator: Hansen, S.E. Originator: Jing, L. Publication_Date: 2008 Title: Major-oxide, minor-oxide, and trace-element geochemical data from rocks and stream sediments collected in the northern Fairbanks mining district, Circle Quadrangle, Alaska in 2007 Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2008-1 v. 1.0.1 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 41 p Online_Linkage: https://doi.org/10.14509/15901 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Trace-element values for Nb, Rb, Sr, Y, and Zr were determined at the University of Alaska Fairbanks by XRF on a pressed pellet. Lower and upper detection limits for the trace-element analyses are 0.01 and 100 ppm, respectively. Logical_Consistency_Report: not applicable Completeness_Report: This data release is complete. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Location data were collected using handheld GPS units. Lineage: Process_Step: Process_Description: Field data collection - During June 2007, personnel from the Alaska Division of Geological & Geophysical Surveys (DGGS) and the University of Alaska Fairbanks spent approximately 189 person-days conducting field work in the northeast Fairbanks area. Process_Date: 2007 Process_Step: Process_Description: Sample selection - Rock samples were collected for two different purposes. First, samples of visibly mineralized or altered rock were preferentially collected and analyzed for trace-element geochemistry. Second, igneous and metaigneous rocks showing little alteration or weathering were collected for whole-rock major-oxide, minor-oxide, and trace-element analyses to aid in classification and study of petrogenesis and tectonic setting. Most samples are grab samples, which were collected for their overall representation of the outcrop. However, a few samples are select samples, which were more deliberately collected from a specific feature, as noted in the sample field description. Rock outcrop accounts for much less than one percent of the study area, consequently, many of the rock samples were collected from up to 1-meter-deep pits dug with shovels into rocky colluvial deposits below the surficial loess. Process_Date: 2007 Process_Step: Process_Description: Trace-element geochemistry - Trace-element values for Nb, Rb, Sr, Y, and Zr were determined at the University of Alaska Fairbanks by XRF on a pressed pellet. Process_Date: 2007 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: decimal degrees 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: geochemistry-download Entity_Type_Definition: Digital data available through the Alaska Geochemistry database online. Download files include data, analytical methods, and detection limits. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys (DGGS) Entity_Attribute_Layer_Name: geochemistry-download 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: PIR 2022-2 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: ASCII tabular files Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.14509/30891 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20220901 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