Seven uranium provinces that have yielded most of the uranium production in the United States, Canada, and Mexico are defined, described, and modeled in a new format. They are the Blind River-Elliot Lake, Athabasca Basin, Colorado Plateau, Rocky Mountain and Intermontane Basins, Gulf Coast, Basin, Gulf Coast, Basin and Range, and Florida Phosphorite uranium provinces.
Maps show the location of major uranium clusters within the provinces.
Most of the provinces appear to have formed in close associates with volcanic activity related to the development of the western margin of the North American Plate from Precambrian through Tertiary time. The U.S. Geological Survey's Basin and Range to Colorado Plateau Transition Study Unit was created to study the tectonic and magmatic evolution of the eastern part of the Basin and Range province and the western margin of the Colorado Plateaus province. E. Palynology and ages of some Upper Cretaceous formations in the Markagunt and northwestern Kaiparowits plateaus, southwestern Utah, by D. J. Nichols, U.S. Geological Survey. The Permian clastic sedimentary rocks of northwestern Arizona, by G. H. Billingsley, U.S. Geological Survey. I. Geochemistry and petrogenesis of Quaternary basaltic rocks from the Red Hills and western Markagunt Plateau, southwestern Utah, by L. D. Nealey, J. R. Budahn, Florian Maldonado, and D. M. Unruh, U.S. Geological Survey.