The GeoRef database, contains over 2.6 million records to journal articles, books, government publications, maps and conference publications related to geology, geophysics, geochemistry, hydrogeology, paleontology and mineralogy. It contains citations to all of the publications indexed in the Bibliography and Index of North American Geology, Abstracts of North American Geology, Bibliography of Theses in Geology, Geophysical Abstracts, Bibliography and Index of Geology Exclusive of North America, and the Bibliography and Index of Geology.
GeoRef is the most comprehensive index to geoscience information. It contains information on publcations related to the geology of North America from 1693 to the present and the geology of the rest of the world from 1933 to the present. The database includes references to all U.S. Geological Survey and state geological survey publications, as well as geological survey publications from other countries of the World. It also indexes Masters' theses and doctoral dissertations from US and Canadian universities.