Alteration of sandstone as a guide to uranium deposits and their origin, northern Black Hills, South Dakota

Uranium-bearing lignite and carbonaceous shale in the southwestern part of the Williston Basin: A regional study; with a section on heavy minerals in Cretaceous and Tertiary rocks associated with uranium occurrences

“…3), chert, ironstone, and other resistant rock debris are common constituents which accumulated on the surface prior to deposition of the White River Group and Arika.ree Formation. This surface and its relation to attendant geologic features in the northern Black Hills and adjacent areas in the northern Great Plains region of western South Dakota and Nebraska are described by Vickers ( 1957), Tourtelot ( 1956, p. 80), and Dunham ( 1955, p. 8).…”

Conditions of Formation of Multi-Element Stratabound Infiltrational Mineral Deposits

“…It is also known that vanadi um accompanies uranium in stratabound epigenetic deposits in petroliferous Paleogene car bonate rocks [7], and in deposits in the Black Hills region in South Dakota [15] and in the southern part of the Powder River-Highland basin and elsewhere in Wyoming [ 14].…”

“…Here pink rocks either constitute practically this whole zone (deposits in Campanian channel sediments and Palaeogene carbonate rocks, deposits of the Black Hills region of the USA [15]) or they are rimmed with a narrow border of brownish yellow limonitized rocks (deposits in Lower Senonian delta sands and the southern part of the Powder River basin [14]). …”

Principal uranium deposits of the world

“…Locally both carbonaceous material and uranium minerals are concentrated in sandy or si1ty seams that appear to be alined along bedding planes and planes of cross stratification; these concentrations constitute the richest parts of the ore bodies (Bergandahl and others, 1961). References: Bergandahl and others, 1961;Hart, 1968;Maxwell, 1974;Robinson and Goode, 1957;Robinson and others, 1964;Vickers, 1957. Symbol: 6CSM Name:…”