- Usage in publication:
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- Vinson chalk
- Modifications:
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- First used
- Dominant lithology:
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- Chalk
- AAPG geologic province:
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- Ouachita folded belt
Summary:
Pg. 353. Vinson chalk. Name applied to formation (2nd of 8) in type Austin group in vicinity of Austin, Williamson County, Texas (Ouachita tectonic belt province). Name credited to Durham (1957, unpub. thesis). According to Durham, the type Austin sequence (in vicinity of Austin) includes (ascending) Atco chalk, Bruceville chalk-marl, Vinson chalk, Jonah limestone, Dessau chalk, Burditt chalk marl, and Big House chalk. Vinson overlies Atco chalk, intertongues with Bruceville chalk-marl to the north, and underlies Jonah limestone in the type Austin sequence. Age is Late Cretaceous (Austinian).
Type locality not designated. Derivation of name not stated. Occurs in type section of Austin Group, at Austin, Williamson Co., TX.
Source: US geologic names lexicon (USGS Bull. 1350, p. 798); supplemental information from 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 ([ ]).