- Usage in publication:
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- Falcon sandstone member
- Modifications:
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- Original reference
- Dominant lithology:
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- Sandstone
- AAPG geologic province:
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- Gulf Coast basin
Summary:
Pg. 259 (fig. 2), 263. Falcon sandstone member of Cook Mountain formation. Proposed for upper 500 feet, approximately, of Cook Mountain formation. Characterized by massive cross-bedded fossiliferous marine sandstone beds. Underlies La Perla shale member (new) of Yegua formation; overlies Veleno member (new) of Cook Mountain formation. [Age is Eocene (Claiborne).]
Named from town of Falcon, on American bank of Rio Grande, 2 mi north of Starr-Zapata Co. line, western TX.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1314-1315).
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 ([ ]).