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• Chemical Analyses of Soils and other Surficial Materials of the Coterminous US

  Offsite — Geochemistry of soils and other regoliths collected and analyzed by Hans Shacklette and colleagues from 1958 until about 1976 Additional facts from data.gov Dataset Summary Date Released: 1981 Date Updated: 1981 Time Period: samples collected 1958-1976 Data.gov Data Category Type: Raw Data Catalog Frequency: none planned Specialized Data Category Designation: ...