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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    40Ar/39Ar data, Ray Mountains area, Bettles Quadrangle, Alaska

    Metadata Updated: July 5, 2023

    40Ar/39Ar analyses were performed on igneous rocks from the Ray Mountains area of west-central Alaska. The plutonic samples have ages from about 89 Ma to 109 Ma, while the volcanic samples show ranges from about 30 Ma to 64 Ma. The three volcanic samples fall into two age groups: the younger sample, a basalt, has an age of about 30 Ma, while the two older, rhyolitic samples fall between 58 Ma and 64 Ma. Analyses were performed by the University of Alaska Fairbanks Geochronology Laboratory, and results were reported by Paul Layer and Jeff Benowitz. Products included in this data release are: a summary of sample collection method; the laboratory report, analytical data tables and associated metadata; and plots of the 40Ar/39Ar age spectra, Ca/K ratios, and Cl/K ratios. All components of this data release are available for download on the DGGS website at no charge.

    Access & Use Information

    Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Date October 10, 2014
    Metadata Created Date July 5, 2023
    Metadata Updated Date July 5, 2023
    Reference Date(s) January 1, 2014 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from Alaska Division of Geological and Geophysical Surveys

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date October 10, 2014
    Metadata Created Date July 5, 2023
    Metadata Updated Date July 5, 2023
    Reference Date(s) January 1, 2014 (publication)
    Responsible Party Alaska Division of Geological & Geophysical Surveys (Point of Contact)
    Contact Email
    Guid 1bcdee04-c74a-47b7-8993-4349d5eeae10_source
    Access Constraints 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., 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).
    Bbox East Long -150.068310
    Bbox North Lat 66.619410
    Bbox South Lat 66.057300
    Bbox West Long -150.455470
    Coupled Resource
    Frequency Of Update asNeeded
    Harvest Object Id 1bcdee04-c74a-47b7-8993-4349d5eeae10
    Harvest Source Id 8f77b6d5-f630-4995-bdf3-0aee7158a7f3
    Harvest Source Title Alaska Division of Geological and Geophysical Surveys
    Licence 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.
    Lineage This lineage was generated by the FGDC CSDGM to 19139 transformation
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-150.45547, 66.0573], [-150.06831, 66.0573], [-150.06831, 66.61941], [-150.45547, 66.61941], [-150.45547, 66.0573]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2012-01-01
    Temporal Extent End 2014-01-01

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