Radiometric ages of rocks or minerals sampled from Alaska. The data were collected from professional publications and/or received from researchers and used by permission.
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https://mrdata.usgs.gov/services/akages (WMS, version 1.3.0)
https://mrdata.usgs.gov/services/wfs/akages (WFS, version 1.1.0)
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akages.zip (Shapefile 282 kb)
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About the database tables and fields
