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2-4 Wilt, Jan C., and Scarborough, Robert B., 1981, Cenozoic sediments, volcanics and related uranium in the Basin and Range Province of Arizona, in Goodell, P. C., and Waters, A. C., editors, Uranium in volcanic and volcaniclastic rocks: American Association of Petroleum Geologists, Studies in Geology No. 13, p. 123-143.
2-4 Wilt, Jan C., and Scarborough, Robert B., 1981, Cenozoic sediments, volcanics and related uranium in the Basin and Range Province of Arizona, in Goodell, P. C., and Waters, A. C., editors, Uranium in volcanic and volcaniclastic rocks: American Association of Petroleum Geologists, Studies in Geology No. 13, p. 123-143.
ABS
Concentrations of uranium in Cenozoic deposits of Arizona occur with carbonaceous and siliceous matter in light-colored, calcareous mudstones or fetid carbonates that were deposited in lacustrine, paludal or low-energy floodplain environments. Although uranium was deposited throughout the Cenozoic, the largest uranium resources in the state occur in the Date Creek basin in fine-grained sediments associated with ignimbrite volcanism of the mid-Tertiary orogeny. This concentration may be related to the coincidence of three factors: low-energy environments where fine grained, carbonaceous, lacustrine or paludal sediments were accumulating; exposure of large areas of alkalic Precambrian granite; and, extrusion of large volumes of relatively alkalic and silicic volcanics of the mid-Tertiary ignimbrites.
Key words
Uranium, Cenozoic, lacustrine, Date Creek basin, mid-Tertiary, alkalic, silicic, volcanics, ignimbrites
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2-4 Wilt, Jan C., and Scarborough, Robert B., 1981, Cenozoic sediments, volcanics and related uranium in the Basin and Range Province of Arizona, in Goodell, P. C., and Waters, A. C., editors, Uranium in volcanic and volcaniclastic rocks: American Association of Petroleum Geologists, Studies in Geology No. 13, p. 123-143.
ABS
Concentrations of uranium in Cenozoic deposits of Arizona occur with carbonaceous and siliceous matter in light-colored, calcareous mudstones or fetid carbonates that were deposited in lacustrine, paludal or low-energy floodplain environments. Although uranium was deposited throughout the Cenozoic, the largest uranium resources in the state occur in the Date Creek basin in fine-grained sediments associated with ignimbrite volcanism of the mid-Tertiary orogeny. This concentration may be related to the coincidence of three factors: low-energy environments where fine grained, carbonaceous, lacustrine or paludal sediments were accumulating; exposure of large areas of alkalic Precambrian granite; and, extrusion of large volumes of relatively alkalic and silicic volcanics of the mid-Tertiary ignimbrites.
Key words
Uranium, Cenozoic, lacustrine, Date Creek basin, mid-Tertiary, alkalic, silicic, volcanics, ignimbrites
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