Chert in lower member of the Phosphoria Formation, cliffs in sec. 10, T. 2 S., R. 10 W., east of Devils Hole north of Canyon Creek. Beaverhead County, Montana. nd.
Summary
Album caption: Chert in lower member of the Phosphoria Formation, cliffs in sec. 10, T. 2 S., R. 10 W., east of Devils Hole north of Canyon Creek. Note lamination in dolostone, caused by quartz sand in crossbeds, that passes as a ghost lamination into the chert. Published as figure 12.
Summary
Album caption: Chert in lower member of the Phosphoria Formation, cliffs in sec. 10, T. 2 S., R. 10 W., east of Devils Hole north of Canyon Creek. Note lamination in dolostone, caused by quartz sand in crossbeds, that passes as a ghost lamination into the chert.
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Related External Resources
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Bedrock geology of the Vipond Park 15-minute, Stine Mountain 7 1/2-minute, and Maurice Mountain 7 1/2-minute quadrangles, Pioneer Mountains, Beaverhead County, Montana. Geological Survey (U.S.) Bulletin 1625. 1988.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Zen, E-An Collection.
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