Tag

lithostratigraphy

2 datasets
  • National Geochemical Survey Database

    Offsite — National-scale geochemical analysis of stream sediments and soils in the US, from existing data, reanalysis of existing samples, and new sampling. Goal for sample density is one per 289 square km. Additional facts from data.gov Dataset Summary Date Released: 2004 Date Updated: 2008 Time Period: data obtained through 2007 Data.gov Data Category Type: Raw Data Catalog ...
  • Geology of the Coterminous United States

    Offsite — A digital version of the Geologic Map of the United States, originally published at a scale of 1:2,500,000 (King and Beikman, 1974b). It excludes Alaska and Hawaii. Additional facts from data.gov Dataset Summary Date Released: 1974 Date Updated: 1994 Time Period: timeless Data.gov Data Category Type: Raw Data Catalog Frequency: none planned Specialized Data Category ...