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National Geochemical Database: Sediment

Geochemistry of sediments from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are of stream sediment in the continental US and Alaska.


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ngdbsed.kml (uncompressed 216 Mbytes)

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Get the entire data set: (Shapefile with a URL to the full report online, all attributes as included CSV files 159 MB zip expands to 1.35 GB)



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About the database tables and fields

All database fields, by category

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