- Usage in publication:
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- Exhibit Sandstone Member
- Modifications:
-
- Named
- Dominant lithology:
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- Sandstone
- AAPG geologic province:
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- Permian basin
Summary:
Pg. 104-105, pI. 2. Exhibit Sandstone Member of Hannold Hill Formation. Occurs 320 feet above base of Hannold Hill. Thickness 12 to 15 feet. Commonly fossiliferous. Forms cuesta or series of knobs from bone quarry northward for several miles, and is again exposed in Canoe Valley. Southward from the bone quarry the Exhibit Sandstone is less continuous but was traced with reasonable certainty to near the abandoned rock crusher site in southern Tornillo Flat. Age is early Eocene.
Named from Exhibit Ridge in central Tornillo Flat, Big Bend National Park, Brewster Co., southwestern TX.
Source: US geologic names lexicon (USGS Bull. 1350, p. 249).
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 ([ ]).