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USGS Mineral Resources: National Geochronological Database


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From the site: "Radiometric and fission-track age determinations of geologic materials from the continental US and Alaska."

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Data and Resources

    Gathering Resources...


Spatial Extent

Map data © OpenStreetMap contributors

Additional Info

Field Value
Last Updated June 4, 2014, 21:45 (EST)
Created June 4, 2014, 21:43 (EST)
Netl Product no
Organization Acronym USGS
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