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Coverage: 1785 to the present
Covers worldwide literature in geology and earth sciences. Contains references to over 2.3 million journal articles, books, maps, conference papers, reports, and theses from over 25,150 sources. Includes abstracts. Subject areas covered include: crystallography, economic geology, environmental geology, engineering geology, geochemistry, geophysics, hydrogeology, hydrology, marine geology, mineralogy, oceanography, and paleontology.