GeoRef Thesaurus Lists
These GeoRef lists provide information on the classification schemes used in GeoRef's controlled vocabulary. Most lists provide both an alphabetical and an hierarchical list for browsing. Search tips are also provided.
List A GeoRef Categories/Subjects covered
List B Age dating methods
List C Commodities
List D Chemical hierarchies, methods, and data terms
List E Geologic age (stratigraphic) terms
List F Fossils
List G Meteorites
List H Igneous rocks
List I Sedimentary rocks
List J Metamorphic rocks
List K Sedimentary structures
List L Minerals
List M Soils
List N Sediments
List O Geographic terms
List P Major terms
List R Rock units
Please send comments or requests for information to GeoRef at ml@americangeosciences.org