Data sets tagged with "rock"

Geochemical data for unconsolidated sediments (stream sediments, lake sediments, etc.) collected by USGS personnel and analyzed by USGS. These data were part of the Rock Analysis Storage System and are now merged into the National Geochemistry Database. Additional facts from data.gov Dataset Summary Date Released: 2001 Date Updated: 2001 Time Period: samples collected ...

Geochemical data for soils collected by USGS personnel and analyzed by USGS. These data were part of the Rock Analysis Storage System and are now merged into the National Geochemistry Database. Additional facts from data.gov Dataset Summary Date Released: 2001 Date Updated: 2001 Time Period: samples collected 1965-1988 Data.gov Data Category Type: Raw Data Catalog ...

A subset of the National Geochronological Database as of 1995. Shows the distribution of published K/Ar and Ar/Ar age determinations in the US. Sample location, rock description, analytical data, age, interpretation, and bibliographic reference are given. Additional facts from data.gov Dataset Summary Date Released: 1995 Date Updated: 1995 Time Period: data obtained ...

Geochemical data for unconsolidated sediments (stream sediments, lake sediments, etc.) collected in the US and analyzed by the USGS. These data were originally entered in the PLUTO database, which is now merged into the National Geochemistry Database. Additional facts from data.gov Dataset Summary Date Released: 1998 Date Updated: 2001 Time Period: samples collected ...

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