U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Whitsett

Usage:

Whitsett Formation of Jackson Group (TX*)


Subunits:

(alphabetical) --all in TX*: Calliham Sandstone Member, Conquista Clay Member, Deweesville Sandstone Member, Dilworth Sandstone Member, Dubose Clay Member, Fashing Clay Member, Tordilla Sandstone Member.


Geologic age:

early Tertiary (late Eocene)*


Type section, locality, area and/or origin of name:

Type locality: bluff 90 ft in height on east bank of Atascosa River, near Whitsett's house (in sec. 48, Reiffert and Forbese 100-acre tract of Juan Houligan Survey). Bluff is in Atascosa Co., just northwest of Live Oak Co. line, and extends from 6.5 to 7.5 mi south of Campbellton, Atascosa Co., and 1.7 mi N. 60 to 70 deg. W. of Whitsett, Live Oak Co., TX (Ellisor, 1933; Eargle, 1959).


AAPG geologic province:

East Texas basin*
Gulf Coast basin*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).