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- Usage in publication:
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- Oak Creek member
- Modifications:
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- Areal extent
- Dominant lithology:
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- Siltstone
- Mudstone
- AAPG geologic province:
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- Basin-and-Range province
- Plateau sedimentary province
Summary:
Pg. 88, 91, figs. 2 and 3. Oak Creek member of Supai formation. Shown on figure as member of Supai formation, consisting of siltstone and mudstone. Overlies Packard Ranch member (new) and underlies Big "A" [Big A Butte] sand facies of Supai. Westward it grades into sandstone of Supai and eastward it intertongues with a limestone. Age is Pennsylvanian.
[Notable exposures at Fossil Creek, east-central AZ.]
[According to GNU records (USGS DDS-6; Denver GNULEX, Aug. 3, 1990 entry), Oak Creek is considered an ill-defined and invalid term.]
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 ([ ]).