2582ce86-3cb1-492a-af4f-53e5f5ef696d_source eng; USA utf8 dataset Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 3354 College Road Fairbanks AK 99709-3707 USA pointOfContact 2015-06-08 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) 40Ar/39Ar data, Seward Peninsula, Alaska 2015-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Layer, P.W. originator Werdon, M.B. originator Newberry, R.J. originator Drake, Jeffrey originator Benowitz, J.A. originator http://dx.doi.org/10.14509/29413 REPORT AND DIGITAL DATA Raw Data File RDF 2015-3 59 p. This Alaska Division of Geological & Geophysical Surveys (DGGS) Raw Data File presents 40Ar/39Ar age dating results for a volcanic whole-rock sample, selected minerals from various metamorphic rocks and igneous dikes, and white mica from both metamorphic- and hydrothermal-mineralization-related veins encountered on the southern Seward Peninsula, as well as select minerals from one plutonic rock from Cape Denbeigh, eastern Norton Sound, Alaska. Cooling ages on glaucophane, barroisite, amphibole, paragonite, and biotite from metamorphic rocks range from 84 Ma to 209 Ma. The cooling age of white mica in a possible fault zone is 144 Ma. Cooling ages on late-stage metamorphic minerals (winchite and white mica) from veins cutting foliation in metamorphic rocks range from 117 Ma to 139 Ma. Cooling ages on white mica and adularia from hydrothermal mineralization-related veins range from 105 to 131 Ma. The cooling age for one highly alkalic dike is 107 Ma. Cooling ages for younger mafic dikes range from 80 Ma to 84 Ma. The preferred age on a whole-rock sample of basalt is 0.780 +/- 0.011 Ma. Closure and cooling ages on the Cape Denbeigh granite (hornblende, K-feldspar) are 119 Ma and 113 Ma, respectively. The Alaska Division of Geological & Geophysical Surveys (DGGS) Mineral Resources Section conducted geologic mapping and a mineral-resource evaluation on the southern Seward Peninsula, Alaska, during the summers of 2003, 2004, and 2006 as part of the state-funded Airborne Geophysical/Geological Mineral Inventory (AGGMI) Program. The DGGS airborne geophysical surveys, 1:50,000-scale surficial and bedrock geologic maps, and supporting geochemical and geochronologic data will foster a better understanding of the geology and mineral potential of the southern Seward Peninsula, Alaska. Additionally, as part of the Coastal Hazards program, the DGGS Engineering Geology Section collected a plutonic sample from Cape Denbeigh in eastern Norton Sound, Alaska. Collection of all but one sample was undertaken as part of the DGGS Mineral Resources section's Council project. Three summers of field work (2003, 2004, 2006) were funded through the Alaska Airborne Geophysical/Geological Mineral Inventory Program, authorized by the Alaska State Legislature and managed by the State of Alaska, Department of Natural Resources, DGGS. Supplemental funding for field work was provided by the U.S. Geological Survey (USGS) STATEMAP program (grants 04HQPA0003 and 06HQPA0003). Studies of mineral chemistry and 21 samples for 40Ar/39Ar geochronology in the Council map area were funded by Grant 04HQGR0163 from the USGS Mineral Resources External Research Program to the University of Alaska Fairbanks (UAF) (Layer and Newberry, 2004). Samples in this report were collected by Melanie B. Werdon, David J. Szumigala, Jennifer E. Athey, and Lawrence K. Freeman of DGGS, and by Rainer J. Newberry and Shelly A. Hicks of UAF Department of Geology & Geophysics. The collection of sample 2011-SKK-MD051 was funded with qualified outer continental shelf oil and gas revenues through the Coastal Impact Assistance Program, U.S. Fish and Wildlife Service (USFWS), U.S. Department of the Interior, under USFWS Grant F12AF70098. The sample was collected by Meagan DeRaps of DGGS. completed Alaska Division of Geological & Geophysical Surveys GIS Manager (907)451-5020 3354 College Road Fairbanks AK 99709-3707 USA dggsgis@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays pointOfContact notPlanned 40Ar/39Ar Age Dates Ar-Ar Geochronology Mineral Resources STATEMAP Project theme Alaska Division of Geological & Geophysical Surveys Bendeleben Mountains Bendeleben Quadrangle Big Hurrah Mine Bluff (Place) Cape Denbeigh Council Council Mining District Koyuk Mining District Nome Nome Mining District Nome Quadrangle Norton Bay Quadrangle Norton Sound Seward Peninsula Solomon Quadrangle place Alaska Division of Geological & Geophysical Surveys Cretaceous Jurassic Quaternary temporal 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 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. otherRestrictions 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. otherRestrictions 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). Line, gridded, and vector data, and selected plot files of the airborne geophysical survey data of the Nome mining district, Seward Peninsula, Alaska 2005-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Fugro Airborne Surveys Corp. originator Stevens Exploration Management Corp. originator http://dx.doi.org/10.14509/7123 Geophysical Report GPR 2004-6 1 DVD crossReference Plot files of the airborne geophysical survey data of the Council area, Seward Peninsula, Alaska 2003-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Fugro Airborne Surveys originator Stevens Exploration Management Corp. originator http://dx.doi.org/10.14509/2884 Geophysical Report GPR 2003-1 1 DVD crossReference Bedrock geologic map of the Council area, Solomon D-4 and Bendeleben A-4 quadrangles, Seward Peninsula, Alaska 2005-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Newberry, R.J. originator Werdon, M.B. originator Athey, J.E. originator Szumigala, D.J. originator http://dx.doi.org/10.14509/7194 Report of Investigation RI 2005-1E 1 sheet, scale 1:50,000 crossReference Geologic map of the Council Area, Solomon D-4 and Bendeleben A-4 quadrangles, Seward Peninsula, Alaska 2005-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Newberry, R.J. originator Werdon, M.B. originator Stevens, D.S.P. originator Athey, J.E. originator Szumigala, D.J. originator http://dx.doi.org/10.14509/14448 Report of Investigation RI 2005-1D 1 sheet, scale 1:50,000 crossReference Surficial geologic map of the Big Hurrah area, northern half of the Solomon C-5 Quadrangle, Seward Peninsula, Alaska 2005-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Stevens, D.S.P. originator http://dx.doi.org/10.14509/14445 Report of Investigation RI 2005-1C 1 sheet, scale 1:50,000 crossReference Surficial geologic map of the Council Area, Solomon D-4 and Bendeleben A-4 quadrangles, Seward Peninsula, Alaska 2005-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Stevens, D.S.P. originator http://dx.doi.org/10.14509/14446 Report of Investigation RI 2005-1F 1 sheet, scale 1:50,000 crossReference Bedrock geologic map of the Big Hurrah area, northern half of the Solomon C-5 Quadrangle, Seward Peninsula, Alaska 2005-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Werdon, M.B. originator Newberry, R.J. originator Szumigala, D.J. originator Athey, J.E. originator Hicks, S.A. originator http://dx.doi.org/10.14509/7193 Report of Investigation RI 2005-1B 1 sheet, scale 1:50,000 crossReference 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 2007-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Werdon, M.B. originator Newberry, R.J. originator Szumigala, D.J. originator Freeman, L.K. originator Athey, J.E. originator http://dx.doi.org/10.14509/15840 Raw Data File RDF 2007-4 49 p crossReference Explanatory booklet to accompany geologic, bedrock, and surficial maps of the Big Hurrah and Council areas, Seward Peninsula, Alaska 2005-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Werdon, M.B. originator Stevens, D.S.P. originator Newberry, R.J. originator Szumigala, D.J. originator Athey, J.E. originator Hicks, S.A. originator http://dx.doi.org/10.14509/7192 Report of Investigation RI 2005-1 24 p crossReference Geologic map of the Big Hurrah area, northern half of the Solomon C-5 Quadrangle, Seward Peninsula, Alaska 2005-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Werdon, M.B. originator Stevens, D.S.P. originator Newberry, R.J. originator Szumigala, D.J. originator Athey, J.E. originator Hicks, S.A. originator http://dx.doi.org/10.14509/14447 Report of Investigation RI 2005-1A 1 sheet, scale 1:50,000 crossReference 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 2005-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Werdon, M.B. originator Szumigala, D.J. originator Newberry, R.J. originator Athey, J.E. originator Hicks, S.A. originator http://dx.doi.org/10.14509/7130 Raw Data File RDF 2005-2 46 p crossReference vector eng; USA geoscientificInformation -165.4200 -161.5205 64.3818 65.0936 2003-01-01 2015-01-01 >border: Outline of the study area >arar-summary-data-locations: Identification numbers, coordinates, sample descriptions, and summary ages of each sample >step-heating-data: Power output levels and resultant measurements from each sample run true Excel spreadsheets unknown Alaska Division of Geological & Geophysical Surveys (907)451-5020 (907)451-5050 3354 College Road Fairbanks AK 99709-3707 USA dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays Please view our website (http://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible. distributor Contact DGGS for current pricing Free download http://dx.doi.org/10.14509/29413 Excel spreadsheets CSDGM IMPORT ERROR: No digtinfo/formcont information dataset Horizontal Positional Accuracy Report Location coordinates (in NAD83 for the Cape Denbeigh sample, and NAD27 datum for all other samples) were collected using handheld GPS units, with a typical reported accuracy of about 10 m or less. All location coordinates were converted to latitude and longitude (NAD1983) coordinates using ArcGIS v. 10.2.2. Users should note that the interpretive summaries that are provided in the text report have been lightly edited for clarity but are generally provided as received from the lab. Users should note that the interpretive summaries that are provided in the text report have been lightly edited for clarity but are generally provided as received from the lab. not applicable This lineage was generated by the FGDC CSDGM to 19139 transformation Fieldwork - Field geologists collected rock samples from surface outcrops. Care was taken to collect fresh, unweathered samples displaying, when possible, sufficiently large grains for mineral separate sampling. 2011-01-01T00:00:00 Sample preparation and analysis - Prior to submission to the laboratory for 40Ar/39Ar analysis, thin-sections of all samples (except for the Cape Denbeigh sample) were petrographically inspected to ensure that minerals selected for dating of magmatic crystallization were free of alteration, and that samples with white mica in veins had coarse enough white mica present for mineral separation. Rock samples that we found to be suitable for dating by 40Ar/39Ar geochronology analysis were submitted to the Geochronology Laboratory at the University of Alaska Fairbanks (UAF) where they were dated according to the protocols outlined in the accompanying report. 2011-01-01T00:00:00 otherRestrictions 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. unknown This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2019-08-12T11:11:00 version of the FGDC CSDGM to ISO 19139 transform. Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 3354 College Road Fairbanks AK 99709-3707 USA pointOfContact