- Usage in publication:
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- Lake Ardmore sandstone [member]
- Modifications:
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- Named
- Dominant lithology:
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- Sandstone
- AAPG geologic province:
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- South Oklahoma folded belt
Summary:
Named as a member of Springer formation in the Ardmore basin in southern OK in the S. Oklahoma folded belt province. Name derived from a sportsman's lake of that name in sec 2, T4S, R1E, Carter Co, OK, where ledge forms narrow peninsulas and islets. No type locality given. Is a persistent sandstone quite similar in character to the Overbrook sandstone member (new) of the Springer formation. Is 15 to 20 ft thick. Lies 500 ft or less above the Overbrook; overlies and underlies unnamed black shale of Springer. Is 250 to 500 ft below Primrose member (new) of Springer formation. A few casts of coiled cephalopods, not specifically identifiable, found near southwest corner sec 6, T6S, R2E, just north of Springer. Fossil list; geologic map; columnar section. Of Pennsylvanian 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 ([ ]).