Uranium provinces of North America: their definition, distribution and models.

Most deposits are concentrated in separate, well-defined metallogenic provinces: Proterozoic conglomerates and unconformity-related deposits in the Blind River-Elliot Lake and Athabasca Basin areas of Canada; Upper Palaeozoic and Mesozoic tabular sandstone deposits in the Colorado Plateau; Tertiary roll-front deposits in the Rocky Mountain and Intermontane Basins and the Gulf Coastal province; volcanogenic deposits in the Basin and Range province; and uraniferous phosphorites in Tertiary sediments in Florida, Georgia, North and South Carolina and Idaho's Permian Phosphoria Formation. Most seem to have been associated with volcanic activity related to the development of the North American plate's western margin, with the south and west margin of the Canadian Shield at the leading edge of source development and mineralisation. Some provinces include related Cu, Au, Mo, Ni, Ag, Th and V in economic quantities.
Most deposits are concentrated in separate, well-defined metallogenic provinces: Proterozoic conglomerates and unconformity-related deposits in the Blind River-Elliot Lake and Athabasca Basin areas of Canada; Upper Palaeozoic and Mesozoic tabular sandstone deposits in the Colorado Plateau; Tertiary roll-front deposits in the Rocky Mountain and Intermontane Basins and the Gulf Coastal province; volcanogenic deposits in the Basin and Range province; and uraniferous phosphorites in Tertiary sediments in Florida, Georgia, North and South Carolina and Idaho's Permian Phosphoria Formation. Most seem to have been associated with volcanic activity related to the development of the North American plate's western margin, with the south and west margin of the Canadian Shield at the leading edge of source development and mineralisation. Some provinces include related Cu, Au, Mo, Ni, Ag, Th and V in economic quantities.