GEONAMES data base of geologic names of the United States through 1988 : WA, OR, ID

Abstract

This version of GEONAMES has been updated based on information published through 1988, and it contains approximately 30,OOO records relating to more than 18,OOO names. Data are entered in 10 fixed fields containing up to 123 characters of information for each record. The fields are: I. 1 location of unit; S. geologic age; 3. name of unit; A-. USGS usage; 5. lithology; 6. geologic province; 7. thickness at type section; 8. location of type section; 9. lexicon reference; 1O. unique identifier. DEFINITION OF FIELDS. The formats and codes used in the fields are explained below. Fields 5, 6, 7, 8, and 9 are used only once for each unit as this information pertains to its type locality and original reference.