Stratigraphic sections of the Phosphoria Formation in Utah, 1949-51

Integrated studies of over 500 subsurface control sections and over 200 measured surface sections indicate that paleostructural growth of late Paleozoic structural elements, penecontemporaneous with deposition, markedly influenced the distribution of Permian cyclic lithofacies and carbonate reservoir belts in Wyoming and southeastern Idaho. Major paleostructural features include the Antler erogenic belt, Sublett basin, and Bannock high of southeastern Idaho, the Cortez-Uinta axis, the Wyoming shelf margin, and several paleostructures on the Wyoming shelf, some of which may represent early growth of features that later were involved in Laramide orogenic movements. Identification of paleostructural growth is based on interpretations of depositional environments of Permian facies, along with thickness patterns of Permian as well as pre-and post-Permian stratigraphic units.Phosphoria and Dinwoody sediments is interpreted to have resulted from the worldwide decline and extinction by Triassic time of major elements of the Paleozoic marine biotic assemblages which were largely responsible for the deposition of organic carbonate mound buildups and associated organic-rich sedimentary facies in the Permian and earlier Paleozoic beds.

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Stratigraphic sections of the Phosphoria Formation in Utah, 1949-51

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Summary Description of Phosphoria, Park City, and Shedhorn Formations in Western Phosphate Field

Summary Description of Phosphoria, Park City, and Shedhorn Formations in Western Phosphate Field

Depositional history and petroleum geology of the Permian Phosphoria, Park City, and Shedhorn formations, Wyoming and southeastern Idaho

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