It is concluded that the primary ore formation in the Morrison formation of the San Juan basin, formed during late Jurassic and early Cretaceous, was related to humic-rich pore fluids. The fluids were derived from lacustrine mud-flat facies of the Brushy basin and 'K' shales. The fluids moved into the Westwater Canyon member and the Jackpile sandstone. -K.A.R.
Additional Publication Details
Lacustrine-humate model for primary uranium ore deposits, Grants uranium region, New Mexico.
American Association of Petroleum Geologists Bulletin
American Association of Petroleum Geologists (AAPG)