Metadata: Identification_Information: Citation: Citation_Information: Originator: Carolyn D. Ruppel Originator: Arthur H. Lachenbruch Publication_Date: 20221202 Title: Radiogenic heat content for selected cores recovered during T-3 Ice Island heat flow operations in the Arctic Ocean, 1963-74 (ver. 1.1, December 2022) Edition: 1.1 Geospatial_Data_Presentation_Form: tabular digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P97EPU2F Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Hazards and Resources Program Online_Linkage: https://doi.org/10.5066/P97EPU2F Online_Linkage: https://www.sciencebase.gov/catalog/item/5d10eb70e4b0941bde55021a Larger_Work_Citation: Citation_Information: Originator: Carolyn D. Ruppel Originator: Deborah R. Hutchinson Originator: Arthur H. Lachenbruch Originator: John K. Hall Publication_Date: 2019 Title: Thermal Data and Navigation for T-3 (Fletcher's) Ice Island Arctic Ocean Heat Flow Studies, 1963-1973 (ver. 1.1, December 2022) Edition: 1.1 Geospatial_Data_Presentation_Form: tabular digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P97EPU2F Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Ruppel, C.D., Hutchinson, D.R., Lachenbruch, A.H., and Hall, J.K., 2019, Thermal data and navigation for T-3 (Fletcher's) Ice Island Arctic Ocean heat flow studies, 1963-73 (ver. 1.1, December 2022): USGS data release, https://doi.org/10.5066/P97EPU2F. Online_Linkage: https://doi.org/10.5066/P97EPU2F Online_Linkage: https://www.sciencebase.gov/catalog/item/5c65b826e4b0fe48cb390173 Description: Abstract: The T-3 (Fletcher's) Ice Island in the Arctic Ocean was the site of a scientific research station re-established by the Naval Arctic Research Laboratory starting in 1962. Starting in 1963, the USGS acquired marine heat flow data and coincident sediment cores at sites in Canada Basin, Nautilus Basin, Mendeleev Ridge, and Alpha Ridge as the ice island drifted in the Amerasian Basin. Radiogenic heat content in sediments can be an important contributor to measured heat flow. The USGS therefore measured radiogenic heat content in sediments recovered at 26 of the attempted/successful heat flow measurement sites using the laboratory methods available at the time. This dataset reports the measured radiogenic heat values and converts them to modern (SI) units. Purpose: To provide radiogenic heat content at 26 locations where heat flow measurements were attempted by the USGS in the Arctic Ocean between 1963 and 1973. Supplemental_Information: This dataset is Table 1 in: Lachenbruch, A.H., Marshall, B.V., and Ruppel, C.D., 2019, Post-expedition report for USGS T-3 Ice Island heat flow measurements in the High Arctic Ocean, 1963-1973: U.S. Geological Survey data release, https://doi.org/10.5066/P91XQ3IS. Associated with field activity 1063-001-FA ( https://cmgds.marine.usgs.gov/fan_info.php?fan=1963-001-FA ). Data are retained in original non-SI mass heat units and converted to SI mass units. Conversion to modern units of volumetric heating due to radiogenic content requires assumption of a density and is not included here. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1963 Ending_Date: 1968 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -175.883 East_Bounding_Coordinate: -135.150 North_Bounding_Coordinate: 83.870 South_Bounding_Coordinate: 75.367 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:5d10eb70e4b0941bde55021a Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: oceans Theme_Keyword: location Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: marine geology Theme_Keyword: navigational data Theme_Keyword: field monitoring stations Theme_Keyword: heat flow (earth) Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: Lamont Geological Observatory Theme_Keyword: Lamont-Doherty Earth Observatory Theme_Keyword: marine heat flow Theme_Keyword: radiogenic heat content Theme_Keyword: T-3 Ice Island Theme_Keyword: Fletcher's Ice Island Place: Place_Keyword_Thesaurus: None Place_Keyword: Alpha Ridge Place_Keyword: Mendeleev Ridge Place_Keyword: Nautilus Basin Place_Keyword: Canada Basin Place_Keyword: Chukchi Plataeu Place_Keyword: Arctic Ocean Place_Keyword: Amerasian Basin Place_Keyword: Fletcher's Ice Island Place_Keyword: T-3 Ice Island Place: Place_Keyword_Thesaurus: Common geographic areas Place_Keyword: Arctic Access_Constraints: None. Please see 'Distribution Info' for details. Use_Constraints: None. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Carolyn Ruppel Contact_Organization: U.S. Geological Survey, Woods Hole Coastal and Marine Science Center Contact_Position: Research Geophysicist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2339 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: cruppel@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/5d10eb70e4b0941bde55021a?name=T3radiogenicgraphic.jpg Browse_Graphic_File_Description: Radiogenic heat content as reported in Table 1 of Lachenbruch and others (2019)--see cross-reference, color-coded by heat mass unit converted to SI units from the original units. The background bathymetry is from: Jakobsson, M. and others ( 2012), The International Bathymetric Chart of the Arctic Ocean (IBCAO) Version 3.0, Geophys. Res. Lett., 39, L12609, doi:10.1029/2012GL052219. Browse_Graphic_File_Type: JPEG Data_Set_Credit: Dataset originally compiled by Lachenbruch and others (2019)--see cross-reference. Native_Data_Set_Environment: Microsoft Windows 7 Enterprise edition; Microsoft Excel 2013 Cross_Reference: Citation_Information: Originator: Arthur H. Lachenbruch Originator: B. Vaughn Marshall Originator: C.D Ruppel Publication_Date: 2019 Title: Post-expedition report for USGS T-3 Ice Island heat flow measurements in the High Arctic Ocean, 1963-1973 Geospatial_Data_Presentation_Form: table in PDF Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P91XQ3IS Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Hazards and Resources Program Other_Citation_Details: This dataset is Table 1 in: Lachenbruch, A.H., Marshall, B.V., and Ruppel, C.D., 2019, Post-expedition report for USGS T-3 Ice Island heat flow measurements in the High Arctic Ocean, 1963-1973: U.S. Geological Survey data release, https://doi.org/10.5066/P91XQ3IS. Online_Linkage: https://doi.org/10.5066/P91XQ3IS Online_Linkage: https://cmgds.marine.usgs.gov/data/field-activity-data/1963-001-FA/ Cross_Reference: Citation_Information: Originator: Ruppel, Carolyn D. Originator: Lachenbruch, Arthur H. Originator: Hutchinson, Deborah R. Originator: Munroe, Robert Originator: Mosher, David C. Publication_Date: 2019 Title: Heat Flow in the Western Arctic Ocean (Amerasian Basin) Series_Information: Series_Name: Journal of Geophysical Research Issue_Identification: DOI:10.1029/2019JB017587 Publication_Information: Publication_Place: Washington, D.C. Publisher: American Geophysical Union Other_Citation_Details: Ruppel, C.D., Lachenbruch, A.H., Hutchinson, D.R., Munroe, R., and Mosher, D.C., 2019, Heat flow in the Western Arctic Ocean (Amerasian Basin), J. Geophysical Research. Online_Linkage: https://doi.org/10.1029/2019JB017587 Cross_Reference: Citation_Information: Originator: David L. Clark Originator: Rick R. Whitman Originator: Kirk A. Morgan Originator: Scudder D. Mackey Publication_Date: 1980 Title: Stratigraphy and glacial-marine sediments of the Amerasian Basin, central Arctic Ocean Publication_Information: Publication_Place: Boulder, CO Publisher: Geological Society of America Other_Citation_Details: pp. 1-65 Online_Linkage: https://doi.org/10.1130/SPE181-p1 Cross_Reference: Citation_Information: Originator: University Of Wisconsin-Madison Department Of Geoscience Publication_Date: 2016 Title: Archive of information about the Ice Island T3 piston core collection Geospatial_Data_Presentation_Form: NCEI data release Publication_Information: Publication_Place: n/a Publisher: NOAA National Centers for Environmental Information Online_Linkage: https://doi.org/10.7289/v51834g7 Cross_Reference: Citation_Information: Originator: D. A. Darby Originator: A. S. Naidu Originator: T. C. Mowatt Originator: G. Jones Publication_Date: 1989 Title: Sediment Composition and Sedimentary Processes in the Arctic Ocean Publication_Information: Publication_Place: Boston, MA Publisher: Springer US Other_Citation_Details: In: Herman Y. (eds) The Arctic Seas. Springer, Boston, MA, pp. 657-720. doi: 10.1007/978-1-4613-0677-1_24 Online_Linkage: https://doi.org/10.1007/978-1-4613-0677-1_24 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: no information available. **Version 1.1 corrected a data point latitude value. See processing step for additional information. Logical_Consistency_Report: Data fall within reasonable ranges for sediments believed to be present in the Arctic Ocean. Completeness_Report: Radiogenic heat values are determined only for a subset of all the cores recovered in the Arctic Ocean during the USGS T-3 heat flow expedition. The data are assumed to represent results for all of the radiogenic heat content analyses performed by the USGS. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Background on navigation is summarized in: Hunkins, K., and W. Tiemann (1977), Geophysical data summary for Fletcher's Ice Island (T-3), 1962-1974, Technical Report, Lamont-Doherty Survey of the World Ocean Rep. CU-1-77, 219 pp, Lamont-Doherty Geological Observatory and in the cross-referenced Journal of Geophysical Research paper (Ruppel and others, 2019) associated with this release. See also "T-3 Ice Island One Hour Navigation: May 14, 1962 to September 15, 1974" within this data release. Before 1967, navigation relied on theodolite fixes of the sun (summer) and stars (winter) coupled with a chronometer that was frequently checked for accuracy via radio. Hunkins and Tiemann [1977] estimate a positional error of up to 1 km during the summer and 0.5 km in the winter for this period. Starting in 1967, satellite data from the Navy Navigation Satellite System provided positional fixes, and Hunkins and Tiemann [1977] estimate that positions were known within 250 m. Based on the years of the island's occupation, the horizontal datum is assumed to be NAD27. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The depths reported in the data table accompanying the Lachenbruch and others (2019)--see cross-reference--are apparently line-out depths for the heat flow apparatus. No additional information with regards to depth measurements is indicated, and no vertical coordinate system is specified. Note that Hunkins and Tiemann (1977) also collected depth measurements using seismic and subbottom profiling systems and these are reported in "T-3 Ice Island One Hour Navigation: May 14, 1962 to September 15, 1974" as part of this data release. It is not known whether these depth measurements were adopted for the heat flow and radiogenic heat datasets. Lineage: Process_Step: Process_Description: Radiogenic heat content for sediments from cores recovered at selected attempted heat flow measurement sites in the Arctic Ocean was determined using gamma ray spectrometric methods by Carl Bunker of the U.S. Geological Survey in Denver, Colorado. The methodology is described in: (1) Bunker, C. M., and Bush, C. A., 1966, Uranium, thorium, and radium analyses by gamma-ray spectrometry (0.184-0.352 million electron volts): U.S. Geol. Survey Prof. Paper 550-B, p. Bl76-181; and (2) Bunker, C. M., and Bush, C. A., 1967, A comparison of potassium analyses by gamma-ray spectrometry and other techniques: U.S. Geol. Survey Prof. Paper 575-B p. B164-Bl69. All the cores analyzed were recovered between 1963 and 1968, as determined by correlation with other published datasets (for example, University of Wisconsin-Department of Geosciences (2016) NCEI data release--see cross-reference). Process date are unknown so are designated as last day of the inferred year of the corresponding report (Lachenbruch and others, 2019; see cross-reference) Source_Used_Citation_Abbreviation: Lachenbruch and others (2019)--see cross-reference Process_Date: 19741231 Process_Step: Process_Description: Data were manually entered into an Excel file. Latitudes and longitudes recorded by Table 1 of Lachenbruch and others (2019)--see cross-reference--in degree-minute format were converted to decimal degrees. Radiogenic heat content for sediments from cores recovered at selected attempted heat flow measurement sites in the Arctic Ocean were converted from their original radiogenic heat mass units of microcalories/(gram-year) to modern (SI) radiogenic heat mass units of Watts per kilogram. The original radiogenic heat mass units are multiplied by 1000 g/kg and by 4.1868 Watts/calorie and divided by 3.15576e7 seconds per year to convert to Watts per kilogram. Source_Used_Citation_Abbreviation: Table 1 of Lachenbruch and others (2019)--see cross-reference Process_Date: 2016 Process_Step: Process_Description: The Excel 2013 XLSX file was written in CSV format using "save as". Source_Used_Citation_Abbreviation: T3Radiogenic.csv Process_Date: 20190621 Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20200806 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Process_Step: Process_Description: An error was found in the data file where the latitude of station 1 was incorrect. In comparing the data file to the PDF of the original publication (Table 1 in Lachenbruch, A.H., Marshall, B.V., and Ruppel, C.D., 2019, Post-expedition report for USGS T-3 Ice Island heat flow measurements in the High Arctic Ocean, 1963-1973: U.S. Geological Survey data release, https://doi.org/10.5066/P91XQ3IS .) it was discovered that station 1 should have a latitude of 82.5, not 83.5 as in the original data release. The XLSX file was updated and saved in Microsoft Excel 365 with a new filename reflecting the new version (T3Radiogenic_ver1_1.xlsx). The CSV was creating using 'save as' an MS-DOS CSV file. Additionally, the browse graphic was redone and saved as a PNG file. Process_Date: 20221018 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2251 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.01 Longitude_Resolution: 0.01 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.978698214 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: Not known, but likely was water's surface below the ice. Depth_Resolution: 0.1 Depth_Distance_Units: meters Depth_Encoding_Method: attribute values Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: T3radioactive_massunitorig.xlsx Entity_Type_Definition: Excel 2013 Worksheet Entity_Type_Definition_Source: Producer Defined Attribute: Attribute_Label: station Attribute_Definition: Core/heat flow penetration number (station number). Usually cited as "FL-" followed by this ID number in publications and databases. Note that not all station numbers used here correspond to a successful heat flow measurements. This means that core was recovered, but a heat flow measurement was not recorded, at some stations. Stations where radiogenic heat was determined, but no heat flow recorded, are FL-1, FL-7, FL-84, FL-101, FL-112, FL-183, FL-228, and FL-280. Note that FL-1 is not marked as lacking heat flow in Table 1 of the original Lachenbruch and others (2019)--see cross-reference--document, but FL-1 is lacking from Table 2 (heat flow) of that report, which documents only stations at which heat flow measurements were successful. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 280 Attribute: Attribute_Label: latitude (degrees N) Attribute_Definition: Latitude of position of decimal degrees. Positive is north latitude. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 75.37 Range_Domain_Maximum: 83.87 Attribute_Units_of_Measure: Decimal degrees Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: longitude (degrees W) Attribute_Definition: Longitude of position in decimal degrees. Negative means longitude west of the Greenwich meridian. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -175.89 Range_Domain_Maximum: -135.15 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: water depth (m) Attribute_Definition: Water depth (meters) Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1178 Range_Domain_Maximum: 3782 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: radiogenic heat production mass unit (microcalorie/(gram-year) Attribute_Definition: Radiogenic heat production from uranium, thorium, and potassium in heat mass units of microcal/(g-yr) Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.89 Range_Domain_Maximum: 8.46 Attribute_Units_of_Measure: microcalories/(gram-year) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: radiogenic heat production mass unit (W/kg) Attribute_Definition: Radiogenic heat production from uranium, thorium, and potassium in heat mass units of Watts/kilogram Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5.16e-10 Range_Domain_Maximum: 1.12e-9 Attribute_Units_of_Measure: Watts/kilogram Attribute_Measurement_Resolution: 0.01 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - ScienceBase Contact_Address: Address_Type: mailing and physical address Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: The dataset contains the data in both Excel XLSX format and CSV format (T3Radiogenic_ver1_1.xlsx, T3Radiogenic_ver1_1.csv), browse graphic of data locations (T3_radiogenicgraphic_ver1_1.png), and CSDGM metadata in XML format. Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: XLXS Format_Version_Number: Microsoft Excel 365 Format_Information_Content: The dataset contains the XLSX and CSV format of the data, browse graphics and associated FGDC CSDGM metadata. Transfer_Size: 1 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5d10eb70e4b0941bde55021a Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5d10eb70e4b0941bde55021a Network_Resource_Name: https://doi.org/10.5066/P97EPU2F Access_Instructions: The first link downloads all the data on the landing page and provides them in a zip file, the second link goes to the dataset landing page where files can be downloaded individually, and the third link goes to the data release main landing page. Digital_Form: Digital_Transfer_Information: Format_Name: CSV Format_Version_Number: Microsoft Excel 365 Format_Specification: Comma-Separated Values exported from Excel Format_Information_Content: The dataset contains the XLSX and CSV format of the data, browse graphics and associated FGDC CSDGM metadata. Transfer_Size: 1 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5d10eb70e4b0941bde55021a Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5d10eb70e4b0941bde55021a Network_Resource_Name: https://doi.org/10.5066/P97EPU2F Access_Instructions: The first link downloads all the data on the landing page and provides them in a zip file, the second link goes to the dataset landing page where files can be downloaded individually, and the third link goes to the data release main landing page. Fees: None Metadata_Reference_Information: Metadata_Date: 20221202 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Carolyn Ruppel Contact_Organization: U.S. Geological Survey, Northeast Region Contact_Position: Research Geophysicist Contact_Address: Address_Type: mailing address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: United States Contact_Voice_Telephone: 508-548-8700 x2339 Contact_Electronic_Mail_Address: cruppel@usgs.gov Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998