Usage:
Brook Ranch Member of Big Saline Formation (TX)
Also called Brook Lentil of Big Saline Formation in some reports.
Geologic age:
Middle Pennsylvanian
Type section, locality, area and/or origin of name:
Along abandoned highway, 3.5 mi south and 1 mi east of Brady, and 0.75 mi northwest of Brook Ranch headquarters, McCulloch Co., central TX (Plummer, 1950).
AAPG geologic province:
Llano uplift
Permian basin
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 ([ ]).