“…Most known deposits of this type are in areas where the climate is arid or semiarid. With few exceptions, the deposits are small and minable thicknesses generally contain less than 0.2 percent uranium (McKelvey, 1955).…”
Section: Secondary Tjranium Mineralsmentioning
confidence: 98%
“…i» Mackay and Beer, 1952. 11 Lang, 1952McKelvey, 1955;Everhart and Wright, 1953;Bain, 1950; and many articles and notes in Engineering and Mining Journal and other technical journals.…”
Section: Estimates Of Uranium Content In Materials Of the Earth's Crumentioning
confidence: 99%
“…Deposits contain hundreds, less commonly thousands or tens of thousands and rarely millions of tons of ore, averaging a few tenths (generally 0.2 to 0.5) of a percent uranium. Some contain recoverable vanadium or copper CFischer, 1942, McKelvey, 1955, Steen, 1954).…”
Section: Deposits Formed By Sedimentary and Weathering Processesmentioning
Uraniferous fluorite deposits._____________________ ______ Deposits with refractory uranium minerals______________ Deposits with uraniferous carbonaceous material._________ Deposits formed by sedimentary processes.______________________ Phosphate rock__________________________________________ Marine carbonaceous shale________________________________ Placers__________________________________ Deposits formed as a result of weathering processes.
“…Most known deposits of this type are in areas where the climate is arid or semiarid. With few exceptions, the deposits are small and minable thicknesses generally contain less than 0.2 percent uranium (McKelvey, 1955).…”
Section: Secondary Tjranium Mineralsmentioning
confidence: 98%
“…i» Mackay and Beer, 1952. 11 Lang, 1952McKelvey, 1955;Everhart and Wright, 1953;Bain, 1950; and many articles and notes in Engineering and Mining Journal and other technical journals.…”
Section: Estimates Of Uranium Content In Materials Of the Earth's Crumentioning
confidence: 99%
“…Deposits contain hundreds, less commonly thousands or tens of thousands and rarely millions of tons of ore, averaging a few tenths (generally 0.2 to 0.5) of a percent uranium. Some contain recoverable vanadium or copper CFischer, 1942, McKelvey, 1955, Steen, 1954).…”
Section: Deposits Formed By Sedimentary and Weathering Processesmentioning
Uraniferous fluorite deposits._____________________ ______ Deposits with refractory uranium minerals______________ Deposits with uraniferous carbonaceous material._________ Deposits formed by sedimentary processes.______________________ Phosphate rock__________________________________________ Marine carbonaceous shale________________________________ Placers__________________________________ Deposits formed as a result of weathering processes.
“…The Colorado Plateau is a vanadium and uranium province, and constitutes the most productive source of uranium in this country (McKelvey, 1955). It is also a region that contains a large amount of continental-type sediments.…”
Section: Chemical Features Of Sedimentary Rocks Approach To the Studmentioning
“…Choosing implies elimination, and this is furthered by a preliminary classification of ground for prospecting. Types of prospecting ground may be grouped into the following categories: (1) ground in which ore bodies are known to be present; (2) ground in which favorable lithologic, mineralogic, or structural indications are present in varying degrees; and (3) ground in which there are no favorable indications.…”
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