GeoRef

Index to the worldwide literature of geology, geophysics, geochemistry, paleontology, hydrogeology , hydrology, and mineralogy. Publication types covered include journal articles, books, conference proceedings, government publications, theses, reports, and maps. Provides citations, with a small percentage accompanied by abstracts. Produced by the American Geological Institute.

Coverage: 1693 - present, updated biweekly

http://www.lib.umn.edu/get/5474