- Usage in publication:
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- Dead Horse Creek member
- Modifications:
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- Named
- Dominant lithology:
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- Sandstone
- AAPG geologic province:
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- Powder River basin
Summary:
Named as the middle member of the Parkman sandstone (rank raised in report area) of Mesaverde group (rank raised in report area). Type well is the Farmers Union #1 Government-Ferguson in SE, SE sec. 13, T 49 N, R 76 W, Campbell Co., WY in the Powder River basin. Member present in type well between 7,015 to 7,210 ft. Described as a very fine grained, clean, quartz, linear-shaped bar sandstone that has abundant shale "streaks". Dolomite makes up 15 percent of the member probably accumulated at the depositional interface during offshore sand deposition. Of littoral marine origin. E-log cross section. Overlies unnamed member of Parkman. Underlies the newly named Ferguson member of Parkman. Of Late Cretaceous age.
Source: GNU records (USGS DDS-6; Denver GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).