U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Geologic Units: Cistern
Search archives
Map showing publication footprint
  • Usage in publication:
    • Cistern member
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Clay
  • AAPG geologic province:
    • Gulf Coast basin
Publication:

McCallum, H.D., 1947, [Geology in area of Imogene, Charlotte, and Jourdanton oil fields, Atascosa County, Texas], IN Log of field trip, San Antonio - George West - Beeville- Falls City [Texas]: South Texas Geological Society Field Trip Guidebook, November 7, 1947, no. 14, p. 4, 5.


Summary:

Pg. 4, 5. Cistern member of Yegua formation. Black to gray sandy clay. Member is downthrown on the Imogene fault and overlies the so-called Dime Box member. Age is Eocene (Claiborne).
Origin of name not stated. Dime Box member occurs in Lee Co., eastern TX.

Source: US geologic names lexicon (USGS Bull. 1200, p. 809).


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 ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Wed 12 Mar 2025 03:45:51 PM MDT