Stratigraphy and origin of the Chinle formation (Upper Triassic) on the Colorado Plateau
No abstract available.
Colorado Plateau↗
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Maps showing thickness of the Morrison Formation and thickness and generalized facies of the members of the Morrison Formation in the Colorado Plateau region
No abstract available.
Arizona, Colorado, New Mexico, Utah↗
Laboratory, field, and computer flow study of the origin of Colorado Plateau type uranium deposits
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Open-File Report↗
Aspects of the palynology of the Chinle Formation (Upper Triassic), Colorado Plateau, Arizona, Utah, and New Mexico
This study deals with 16 palynological samples from Arizona, New Mexico, and Utah, that represent six members of the Chinle Formation of Late Triassic age. The samples, in ascending sequence, show a gradual change in the spore-bisaccate ratio from a preponderance of spores to numerical dominance of bisaccate pollen grains. This change is interpreted to indicate a climatic trend toward increasing aridity. The trend is thought to represent the decreasing energy phase of the oldest of three depositional cycles posited by Lupe (1977, 1979). The late Karnian age indicated for the Chinle Formation by pollen and spores is based on material from the lower part of the formation, leaving open the possibility that the upper part of the Chinle may be younger.
Open-File Report↗
Comparison of the chemical composition of mineralized and unmineralized sandstone and conglomerate samples from the uranium-bearing Chinle Formation of the Colorado Plateau
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Open-File Report↗
Petroleum exploration plays and resource estimates, 1989, onshore United States; Region 3, Colorado Plateau and Basin and Range
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Open-File Report↗
Palynological evaluation of Cedar Mountain and Burro Canyon formations, Colorado Plateau
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Professional Paper↗
Cenozoic geology of the Colorado Plateau
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Professional Paper↗
Geochemistry and mineralogy of the Colorado Plateau uranium ores
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Professional Paper↗
Stratigraphy and origin of the Chinle Formation and related Upper Triassic strata in the Colorado Plateau region, with a section on sedimentary petrology and a section on conglomerate studies
No abstract available.
Arizona, Colorado, Nevada, New Mexico, Utah↗
Petrology of the Triassic Moenkopi Formation and related strata in the Colorado Plateau region, with a section on stratigraphy
No abstract available.
Arizona, Colorado, New Mexico, Utah↗
Some quantitative aspects of the oxidation and reduction of Colorado Plateau ores
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Trace Elements Investigations↗
Preliminary report on the stratigraphy of the Morrison and related formations of the Colorado Plateau region
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Trace Elements Investigations↗
A preliminary determination of the age of some Colorado Plateau uranium ores by the lead-uranium method
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Trace Elements Investigations↗
Map of the uranium region of the Colorado plateau
No abstract available.
Arizona;Colorado;New Mexico;Utah↗
An air concentrator for very low grade Colorado Plateau uranium ores
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Trace Elements Investigations↗
Progress report on the stratigraphy of the Triassic and associated formations in part of the Colorado Plateau region
Stratigraphic studies involving regional stratigraphy, sedimentary structures, pebbles, and sedimentary petrology are designed to furnish information regarding areal distribution, stratigraphic relationship, source areas, and depositional environment of the Triassic Shinarump conglomerate.
Arizona;Utah↗