Before revision: Major areas of coverage by GeoRef include: •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"GeoRef" ProQuest Products Page.
After revision: Major areas of coverage by GeoRef include: 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"GeoRef" ProQuest Products Page.