Usage:
Cieneguita Formation (TX*)
Geologic age:
Middle to Late Pennsylvanian*
Type section, locality, area and/or origin of name:
Type section [composite] stated: base of section exposed 1.75 mi N. 40 deg. E. of Cieneguita Ranch headquarters, 2.85 mi S. 42 deg. E. of Ojo triangulation station, [in vicinity of Lat. 29 deg. 57 min. 15 sec. N., Long. 104 deg. 20 min. 00 sec. W., Cieneguita 7.5-min quadrangle (1983 ed.), Presidio Co., southwestern TX]; top exposed about 200 yds due south of White's shipping pens on Cieneguita-Cibolo Ranch road, 2.8 mi west of junction with US Highway 67 [in vicinity of Lat. 29 deg. 55 min. 00 sec. N., Long. 104 deg. 18 min. 30 sec. W., Cieneguita 7.5-min quadrangle (1983 ed.), Presidio Co., southwestern TX] (Rix, 1953; see also Skinner, 1940).
Named from Cieneguita Ranch, Presidio Co., west-central TX (Udden, 1904).
AAPG geologic province:
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 ([ ]).