Identification_Information: Citation: Citation_Information: Originator: Twelker, Evan Originator: Athey, J.E. Originator: Newberry, R.J. Originator: Griesel, G.A. Originator: Szumigala, D.J. Originator: Freeman, L.K. Originator: Elliott, B.A. Originator: Werdon, M.B. Originator: Stevens, D.S.P. Publication_Date: 2016 Title: Geologic map of portions of the Livengood B-3, B-4, C-3, and C-4 quadrangles, Tolovana mining district, Alaska Geospatial_Data_Presentation_Form: report and digital data Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2016-5 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 39 p., 1 sheet, scale 1:63,360. Online_Linkage: http://dx.doi.org/10.14509/29665 Description: Abstract: This data file presents 40Ar/39Ar step-heating geochronology results for a granite sample from the Livengood mining district. The Livengood area is a historically productive placer mining area approximately 80 road miles north of Fairbanks, Alaska. This data is a component of a geologic map and accompanying report that synthesizes recently collected and previously published agency and industry geologic data in a 1:50,000-scale comprehensive geologic map to build a better understanding of the geology and mineral-resource potential of the Livengood area. Purpose: This data file presents 40Ar/39Ar step-heating geochronology results for a granite sample from the Livengood mining district. Supplemental_Information: >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 Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2010 Currentness_Reference: ground condition Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -148.56559 East_Bounding_Coordinate: -148.56559 North_Bounding_Coordinate: 65.44400 South_Bounding_Coordinate: 65.44400 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: 40Ar/39Ar Theme_Keyword: Airborne Geophysical/Geological Mineral Inventory Theme_Keyword: Bedrock Theme_Keyword: Bedrock Geology Theme_Keyword: Copper Theme_Keyword: Eolian Theme_Keyword: Fossils Theme_Keyword: Geochemistry Theme_Keyword: Geochronology Theme_Keyword: Geologic Map Theme_Keyword: Gold Theme_Keyword: Igneous Rocks Theme_Keyword: Man-Made Deposits Theme_Keyword: Metamorphic Rocks Theme_Keyword: Plutonic Rocks Theme_Keyword: STATEMAP Project Theme_Keyword: Sedimentary Rocks Theme_Keyword: Silver Theme_Keyword: Surficial Geology Theme_Keyword: Tailings Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Cascaden Ridge Place_Keyword: Livengood Place_Keyword: Livengood Bench Place_Keyword: Livengood Quadrangle Place_Keyword: Money Knob Place_Keyword: Ranney Hollow Place_Keyword: Shorty Creek Place_Keyword: Tolovana Mining District Place_Keyword: Tolovana River Stratum: Stratum_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Stratum_Keyword: Amy Creek Assemblage Stratum_Keyword: Cascaden Ridge Unit Stratum_Keyword: Livengood Dome Chert Stratum_Keyword: Livengood Terrane Stratum_Keyword: Lost Creek Unit Stratum_Keyword: Rampart Group Stratum_Keyword: Victoria Creek Fault Stratum_Keyword: Wickersham Unit Stratum_Keyword: Wilber Creek Unit 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: Cenozoic Temporal_Keyword: Cretaceous Temporal_Keyword: Devonian Temporal_Keyword: Holocene Temporal_Keyword: Mesozoic Temporal_Keyword: Mississippian Temporal_Keyword: Ordovician Temporal_Keyword: Paleozoic Temporal_Keyword: Permian Temporal_Keyword: Pleistocene Temporal_Keyword: Pliocene Temporal_Keyword: Proterozoic Temporal_Keyword: Quaternary Temporal_Keyword: Silurian Temporal_Keyword: Tertiary Temporal_Keyword: Triassic 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: GIS Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Rd City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: 907-451-5020 Contact_Electronic_Mail_Address: dggsgis@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Data_Set_Credit: This project is part of the Alaska Airborne Geophysical/Geological Mineral Inventory Program funded by the Alaska State Legislature and managed by State of Alaska, Department of Natural Resources (DNR), Division of Geological & Geophysical Surveys (DGGS). Partial funding for the 2003 geologic mapping was also provided by the U.S. Geological Survey, National Cooperative Geologic Mapping Program, under STATEMAP award number 03HQAG0055. The accompanying report provides additional acknowledgements to a multitude of people for their various contributions to this map. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: This publication is a final report of research and has received two technical reviews as well as technical editing. Questions regarding the accuracy of information can be best answered by the originating lab. Logical_Consistency_Report: not applicable Completeness_Report: This data release is complete. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Locations were recorded using handheld GPS devices. Location errors reported by the GPS were not recorded. Lineage: Process_Step: Process_Description: Fieldwork - Fresh, unweathered samples from surficial outcrops were collected by DGGS field geologists; samples were selected based on presence of sufficiently large crystals and/or fresh glassy matrix. Process_Date: 2010 Process_Step: Process_Description: Sample preparation and analysis - Before processing, samples were examined under binocular microscope, or thin sections were prepared and scrutinized to eliminate the possibility of analyzing altered mineral phases. 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. Process_Date: 2010 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 Geographic_Coordinate_Units: decimal degrees Geodetic_Model: Horizontal_Datum_Name: World Geodetic System of 1984 Ellipsoid_Name: WGS 84 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: ri2016-5-arar-summary-data-locations.csv Entity_Type_Definition: Identification numbers, coordinates, sample descriptions, and summary ages of each sample Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: arar-summary-data-locations Attribute: Attribute_Label: SAMPLE Attribute_Definition: Label assigned in the field to identify the sample. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Generic example of a sample identifier: YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X= optional alpha character which indicates that multiple samples were collected at a given location or that multiple observations were recorded in the project database. Attribute: Attribute_Label: LAB_SAMPLE_NUMBER Attribute_Definition: Label used by the lab to identify the sample. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: The lab sample number is typically identical to the field sample number. However, in some cases, the sample number provided by the lab does differ from the number assigned in the field. We provide both numbers to document instances in which the sample numbers in the lab files differ from the field sample number. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: Blank (NULL) values indicate that the lab sample number is identical to the field sample number. Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: COLLECTOR Attribute_Definition: The geologist who collected the sample. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: The samples presented in this report were collected by the authors or other DGGS staff. Attribute: Attribute_Label: LONGITUDE Attribute_Definition: Longitude, WGS84 Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -148.56559 Range_Domain_Maximum: -148.56559 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: LATITUDE Attribute_Definition: Latitude, WGS84 Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 65.44400 Range_Domain_Maximum: 65.44400 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: DATED_MATERIAL Attribute_Definition: Indicates the type of material that was used for analysis Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: The type of material that was selected for dating varied according to mineral composition and grainsize of the submitted rock sample. This field specifies whether the age was derived from a mineral separate (generally 1 to 10 individual crystals dated together as a single run), a single crystal, or the whole rock. Attribute: Attribute_Label: MINERAL Attribute_Definition: Indicates the mineral that was used for analysis Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: The minerals selected for dating would typically be grains of biotite, hornblende, or muscovite. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: A NULL or blank values indicates that the sample was a whole rock or that the mineral type was not recorded by the lab Enumerated_Domain_Value_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute: Attribute_Label: DESCRIP_1 Attribute_Definition: Description of the sample Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Characters 1 to 254 of a brief sample or station description. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: We do not provide a description of the sample. Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: DESCRIP_2 Attribute_Definition: Extension of the sample or station description for descriptions which are greater than 254 characters in length Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Characters greater than 254 of the sample or station description. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: Blank (NULL) values indicate that the descriptive text is shorter than 254 characters. Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: DESCRIP_3 Attribute_Definition: Extension of the sample or station description for descriptions which are greater than 509 characters in length Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Characters greater than 509 of the sample or station description. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: Blank (NULL) values indicate that the descriptive text is shorter than 509 characters. Enumerated_Domain_Value_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: INTEGRATED_AGE_MA Attribute_Definition: Integrated age and age error in million years Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: The values are a concatenation of the integrated age determination and the calculated error associated with the integrated age determination Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: A NULL or blank values indicates that the INTEGRATED_AGE_MA value was not calculated by the lab Enumerated_Domain_Value_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute: Attribute_Label: PLATEAU_AGE_MA Attribute_Definition: Plateau age and age error in million years Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: The values are a concatenation of the plateau age determination and the calculated error associated with the plateau age determination Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: A NULL or blank values indicates that the PLATEAU_AGE_MA value was not calculated by the lab Enumerated_Domain_Value_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute: Attribute_Label: PLATEAU_REMARKS Attribute_Definition: Comments and additional values that pertain to the plateau age determination method or interpretation. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: Free text Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: A NULL or blank values indicates that the PLATEAU_REMARKS value was not provided by the lab Enumerated_Domain_Value_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute: Attribute_Label: W_M_AGE_MA Attribute_Definition: Weighted mean age and age error in million years Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: The values are a concatenation of the weighted mean age determination and the calculated error associated with the weighted mean average age determination Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: A NULL or blank values indicates that the W_M_AGE_MA value was not calculated by the lab Enumerated_Domain_Value_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute: Attribute_Label: W_M_AGE_REMARKS Attribute_Definition: Comments and additional values that pertain to the weighted mean age determination method or interpretation. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: Free text Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: A NULL or blank values indicates that the W_M_AGE_REMARKS value was not provided by the lab Enumerated_Domain_Value_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute: Attribute_Label: ISOCHRON_AGE Attribute_Definition: Isochon age and age error in million years Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: The values are a concatenation of the isochron age determination and the calculated error associated with the isochron age determination Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: A NULL or blank values indicates that the ISOCHRON_AGE value was not provided by the lab Enumerated_Domain_Value_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute: Attribute_Label: ISOCHRON_REMARKS Attribute_Definition: Comments and additional values that pertain to the isochron age determination method or interpretation. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: Free text Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: A NULL or blank values indicates that the ISOCHRON_REMARKS value was not provided by the lab Enumerated_Domain_Value_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute: Attribute_Label: AGE_TYPE_PREFERRED Attribute_Definition: Indicates AGE_TYPE_PREFERRED age. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: A discussion of the preferred age for each analysis is provided in the accompanying lab report. The possible values are: plateau, isochron, weighted average, or integrated. Attribute: Attribute_Label: PREFERRED_AGE Attribute_Definition: The values are a concatenation of the preferred age determination and the calculated error associated with the preferred age determination Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: The preferred age for each analysis is discussed in detail in the accompanying lab report. Detailed_Description: Entity_Type: Entity_Type_Label: ri2016-5-step-heating-data.csv Entity_Type_Definition: Power output levels and resultant measurements from each sample run Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: step-heating-data Attribute: Attribute_Label: SAMPLE Attribute_Definition: Label assigned in the field to identify the sample. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Generic example of a sample identifier: YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X= optional alpha character which indicates that multiple samples were collected at a given location or that multiple observations were recorded in the project database. Attribute: Attribute_Label: LAB_SAMPLE_NUMBER Attribute_Definition: Label used by the lab to identify the sample. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: The lab sample number is typically identical to the field sample number. However, in some cases, the sample number provided by the lab does differ from the number assigned in the field. We provide both numbers to document instances in which the sample numbers in the lab files differ from the field sample number. Attribute: Attribute_Label: Laser_mW Attribute_Definition: Laser output level in megawatts Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 300 Range_Domain_Maximum: 9000 Attribute_Units_of_Measure: megawatts Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: A NULL or blank values indicates that the values in the row were calculated by weighting the individual heating steps by the fraction of 39Ar released. Enumerated_Domain_Value_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute: Attribute_Label: Integrated Attribute_Definition: We indicate whether the values in the row were derived from a heating step or calculated by weighting the individual heating steps by the fraction of 39Ar released. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: The values in the row were derived from a heating step Enumerated_Domain_Value_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute: Attribute_Label: Cum39Ar Attribute_Definition: Cumulative ratio of 39Argon released at this step Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.003 Range_Domain_Maximum: 1 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: The values in the row were derived from a heating step Enumerated_Domain_Value_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute: Attribute_Label: Me40Ar39Ar Attribute_Definition: Measured 40Ar/39Ar ratio for each heating step, corrected for blank and 39Ar decay Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 9.26611 Range_Domain_Maximum: 58.7971 Attribute: Attribute_Label: Er40Ar39Ar Attribute_Definition: The one sigma error for each 40Ar/39Ar measurement Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0929 Range_Domain_Maximum: 1.07646 Attribute: Attribute_Label: Me37Ar39Ar Attribute_Definition: The ratio of measured 37Ar to measured 39Ar for each heating interval for each sample corrected for blank and 37Ar and 39Ar decay Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00027 Range_Domain_Maximum: 0.01922 Attribute: Attribute_Label: Er37Ar39Ar Attribute_Definition: The one sigma error for each 37Ar/39Ar measurement Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00009 Range_Domain_Maximum: 0.01166 Attribute: Attribute_Label: Me36Ar39Ar Attribute_Definition: Ratio of measured 36Ar to measured 39Ar for each step interval for each sample corrected for blank and 39Ar decay Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -0.00161 Range_Domain_Maximum: 0.18204 Attribute: Attribute_Label: Er36Ar39Ar Attribute_Definition: The one sigma error for each 36Ar/39Ar measurement Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00003 Range_Domain_Maximum: 0.00533 Attribute: Attribute_Label: Atm40Ar Attribute_Definition: Percent of 40Ar which is atmospheric in composition at each step level Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -5.1838 Range_Domain_Maximum: 91.53631 Attribute: Attribute_Label: ErAtm40Ar Attribute_Definition: The one sigma error for the percent of 40Ar which is atmospheric in composition at each step level Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.09464 Range_Domain_Maximum: 3.69652 Attribute: Attribute_Label: MeCaK Attribute_Definition: Ratio of Calcium to Potassium as determined from 37Ar/39Ar Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00049 Range_Domain_Maximum: 0.03526 Attribute: Attribute_Label: ErCaK Attribute_Definition: The one sigma error for each Ca/K determination Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00017 Range_Domain_Maximum: 0.0214 Attribute: Attribute_Label: MeClK Attribute_Definition: Ratio of Chlorine to Potassium as determined from 38Ar/39Ar Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0261 Range_Domain_Maximum: 0.03332 Attribute: Attribute_Label: ErClK Attribute_Definition: The one sigma error for each Cl/K determination Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00038 Range_Domain_Maximum: 0.00118 Attribute: Attribute_Label: Er40ArRad39ArK Attribute_Definition: One sigma error for each 40ArRad/39ArK value Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.09232 Range_Domain_Maximum: 1.66349 Attribute: Attribute_Label: AgeMa Attribute_Definition: Calculated age for each temperature step for each sample Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 34.61 Range_Domain_Maximum: 68.65 Attribute_Units_of_Measure: MA Attribute: Attribute_Label: ErAgeMa Attribute_Definition: One sigma error of the age determination of each heating step Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.62 Range_Domain_Maximum: 11.47 Attribute_Units_of_Measure: MA Attribute: Attribute_Label: WeightedAverageOfJFromStandards Attribute_Definition: J value, calculated from the weighted average of standards placed in various positions in the nuclear reactor Attribute_Definition_Source: Geochronology Laboratory at the University of Alaska Fairbanks (UAF) Attribute_Domain_Values: Unrepresentable_Domain: WeightedAverageOfJFromStandards value and error Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys 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 (http://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 2016-5 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: http://dx.doi.org/10.14509/29665 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20161130 Metadata_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 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: http://www.dggs.alaska.gov/metadata/dggs.ext Profile_Name: dggs metadata extensions