Stratigraphy and depositional environments of the Jurassic-Cretaceous seidmentary rocks in the southwest part of the Chama Basin, New Mexico

Ridgley, Jennie L.

doi:10.56577/ffc-28.153

Cited by 4 publications

(8 citation statements)

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“…of lithologies similar to those mapped as Summerville by Santos (1975) has been recognized in the Chama Basin (Craig and others, 1959;Ridgley, 1977) .…”

Section: San Rafael Groupsupporting

confidence: 59%

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Summary of the geology and resources of uranium in the San Juan Basin and adjacent region, New Mexico, Arizona, Utah, and Colorado

Ridgley¹,

Green²,

Pierson³

et al. 1978

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“…of lithologies similar to those mapped as Summerville by Santos (1975) has been recognized in the Chama Basin (Craig and others, 1959;Ridgley, 1977) .…”

Section: San Rafael Groupsupporting

confidence: 59%

“…In the Chama Basin it is included in 'the lower member of the Morrison Formation (Smith and others, 1961;Ridgley, 1977) .…”

Section: Morrison Formationmentioning

confidence: 99%

Summary of the geology and resources of uranium in the San Juan Basin and adjacent region, New Mexico, Arizona, Utah, and Colorado

Ridgley¹,

Green²,

Pierson³

et al. 1978

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“…The Jackpile locally interfingers with the underlying mudstone unit of the Brushy Basin Member and is thought to be of Late Jurassic age although no age diagnostic fossils have been found in it. A sandstone unit similar to the Jackpile rests on the Brushy Basin mudstone unit in the northern part of the study area and is considered to be Burro Canyon Formation by most recent authors (McPeek, 1965;Saucier, 1974;Ridgley, 1977Ridgley, , 1979. The Burro Canyon Formation in this area is a tan, kaolinitic, fine-to medium-grained, crossbedded, fluvial, locally conglomeratic sandstone unit containing interbedded green and red claystone and siltstone.…”

Section: Stratigraphic Unitsmentioning

confidence: 99%

Measured sections of the Jackpile sandstone of the Morrison Formation, the Burro Canyon Formation, and the Encinal Canyon Member of the Dakota sandstone on the eastern side of the San Juan Basin, New Mexico

Aubrey¹

1988

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“…Triassic rocks are unconformably overlain by Jurassic rocks that consist of sandstone, siltstone, mudstone, limestone, and gypsum. The Jurassic rocks were deposited in a variety of environments that include eolian, lacustrine, possible marine, and fluvial (Ridgley, 1977). The Jurassic rocks in the study area are assigned to the Entrada Sandstone, Todilto Limestone, and Wanakah and Morrison Formations.…”

Section: Geologymentioning

confidence: 99%

“…No additional uranium prospects have been reported in the literature. Drilling coupled with reconnaissance geochemical sampling, in particular using changes in vanadium concentration (Ridgley, 1983), would be necessary to identify any subsurface uranium occurrences.…”

Section: Assessment Of Mineral Resource Potentialmentioning

confidence: 99%

Mineral resource potential map of the Chama River Canyon Wilderness and contiguous roadless area, Rio Arriba County, New Mexico

Ridgley¹,

Light²

1983

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Bureau of Mines STUDIES RELATED TO WILDERNESSUnder the provtstons of the Wilderness Act {Public Law 88-577, September 3, 1964) and related acts, the U.S. Geological Survey and the U.S. Bureau of Mines have been conducting mineral surveys of wilderness and primitive areas. Areas officially designated as 11 wilderness, 11 11 wild, 11 or 11 canoe" when the act was passed were incorporated into the National Wilderness Preservation System, and some of them are presently being studied. The act provided that areas under consideration for wilderness designation should be studied for suitability for incorporation into the Wilderness System. The mineral surveys constitute one aspect of the suitability studies. The act directs that the results of such surveys are to be made available to the public and be submitted to the President and the Congress. This report discusses the results of a mineral survey of the Chama River Canyon Wilderness and contiguous Roadless Area {03098), Santa Fe and Carson National Forests, Rio Arriba County, N. Mex. The area was established as a wilderness by Public Law 95-Z37, Feb. Z4, 1978. MINERAL RESOURCE POTEN1'IAL SUMMARY STATEMENTThe Chama River Canyon Wilderness and Roadless Area have a moderate to high potential for the presence of small deposits of copper with associated uranium and silver. These deposits, as yet undetected, would occur in the Permian Cutler Formation and in the lower part of the Triassic Chinle Formation, rock units that are, for the most part, present only in the subsurface. The presence of these deposits is inferred because such deposits occur in rocks of equivalent age in adjacent areas. Gypsum, of probable minable quality and quantity, occurs throughout the area. Oil and gas are possibly present in Pennsylvanian strata in the subsurface, although no drilling in the study area has tested this hypothesis. Other commodities, including noncopper-related uranium, kaolinite, chromium, vanadium, manganese, and bitumen, although present locally in anomalous concentrations, do not appear to constitute potential resources for these commodities.

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Stratigraphy and depositional environments of the Jurassic-Cretaceous seidmentary rocks in the southwest part of the Chama Basin, New Mexico

Cited by 4 publications

References 0 publications

Summary of the geology and resources of uranium in the San Juan Basin and adjacent region, New Mexico, Arizona, Utah, and Colorado

Summary of the geology and resources of uranium in the San Juan Basin and adjacent region, New Mexico, Arizona, Utah, and Colorado

Measured sections of the Jackpile sandstone of the Morrison Formation, the Burro Canyon Formation, and the Encinal Canyon Member of the Dakota sandstone on the eastern side of the San Juan Basin, New Mexico

Mineral resource potential map of the Chama River Canyon Wilderness and contiguous roadless area, Rio Arriba County, New Mexico

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