Established by the American Geosciences Institute (AGI) in 1966, GeoRef contains millions of references to geoscience maps, serial, and non-serial literature. The database also includes references to all publications of the U.S. Geological Survey and master and doctoral dissertations from US and Canadian universities.
Coverage: 1669 - current
Coverage for North American resources starts in 1669, whereas worldwide coverage starts in 1933.
Subject coverage:
Areal geology
Economic geology
Engineering geology
Environmental geology
Extraterrestrial geology
Geochemistry
Geochronology
Geophysics
Hydrogeology and hydrology
Marine geology and oceanography
Mathematical geology
Mineralogy and Crystallography
Paleontology
Petrology
Seismology
Stratigraphy
Structural geology
Surficial geology