2003. American Geological Institute, Geological Survey (U.S.), and Environmental Systems Research Institute (Redlands, Calif.). This datalayer is a polygon coverage showing U.S. Geological Survey defined geologic provinces of the World, excluding the United States. It was pu... American Geological Institute.
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2000. American Geological Institute, Geological Survey (U.S.), and Environmental Systems Research Institute (Redlands, Calif.). This shapefile includes arcs and polygons that describe U.S. Geological Survey defined geologic provinces of the World. Each province has a set of ... American Geological Institute.
1972. American Geological Institute, Geological Survey (U.S.), and Environmental Systems Research Institute (Redlands, Calif.). This datalayer is a point coverage representing metallic and non-metallic mineral resources worldwide. This data was derived from the Mineral Resou... American Geological Institute.