U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Geologic Unit: Cow Bayou
Map showing publication footprint
  • Usage in publication:
    • Cow Bayou member
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Arkla basin
Publication:

Meagher, D.P., and Aycock, L.C., 1942, Louisiana lignite: Louisiana Department of Conservation and Geology Bulletin, no. 3, 56 p.


Summary:

Pg. 13, 14. Cow Bayou member of Logansport formation. Named in a stratigraphic summary of Louisiana lignite district. Name credited to G. Murray, Jr. Age is Paleocene.

Source: US geologic names lexicon (USGS Bull. 1200, p. 961).


Map showing publication footprint
  • Usage in publication:
    • Cow Bayou member
  • Modifications:
    • Principal reference
  • Dominant lithology:
    • Shale
  • AAPG geologic province:
    • Arkla basin
Publication:

Murray, G.E., Jr., and Thomas, E.P., 1945, Midway-Wilcox surface stratigraphy of Sabine uplift, Louisiana and Texas: American Association of Petroleum Geologists Bulletin, v. 29, no. 1, p. 45-70. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Pg. 48 (fig. 2), 57. Cow Bayou member of Logansport formation. Consists of carbonaceous to lignitic shale of a cyclic pattern; typical facies best developed in and around type locality. Average thickness 75 to 100 feet. Underlies Lime Hill member; overlies Dolet Hills member; both upper and lower contacts are transitional, the transition taking place through 5 to 15 feet of section. Type locality designated. [Age is] Paleocene.
Type locality: along Cow Bayou, in SE/4 sec. 9, and in NW/4 sec. 16, T. 10 N., R. 14 W., De Soto Parish, northwestern LA, approx. 3 mi southeast of Hunter on road to Converse.

Source: US geologic names lexicon (USGS Bull. 1200, p. 961).


Map showing publication footprint
  • Usage in publication:
    • Cow Bayou member
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Arkla basin
Publication:

Murray, G.E., Jr., 1948, Geology of De Soto and Red River Parishes: Louisiana Department of Conservation and Geology Bulletin, no. 25, 312 p., (incl. geologic map, scale 1:62,500)


Summary:

Pg. 110-116, pl. 10. Cow Bayou member of Logansport formation. Consists of two facies Benson (lower) and Lulu. Geographically extended into Panola County, Texas. [Report includes geologic maps.]

Source: US geologic names lexicon (USGS Bull. 1200, p. 961).


Map showing publication footprint
  • Usage in publication:
    • Cow Bayou formation
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Arkla basin
Publication:

Andersen, H.V., 1960, Geology of Sabine Parish: Louisiana Department of Conservation and Geology Bulletin, no. 34, 164 p., (incl. geologic map, scale 1:62,500)


Summary:

Pg. 54-55. Cow Bayou formation of Wilcox group. Formation, in Sabine Parish [this report], consists of interbedded silts, shales, and fine-grained sands. Present only in subsurface. Overlies Dolet Hills formation. Underlies Converse formation (new) which includes sand occupying valleys of Pleasant Hill oil field mapped by Murray (1948) as Cow Bayou member of Logansport. Term Logansport eliminated as members are given formational rank. Wilcox group.

Source: US geologic names lexicon (USGS Bull. 1200, p. 961).


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: Thu 04 Apr 2024 04:20:57 PM MDT