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National Geologic Map Database
Geologic Unit: Milams
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Map showing publication footprint
  • Usage in publication:
    • Milams member
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Clay
  • AAPG geologic province:
    • Arkla basin
    • East Texas basin
Publication:

Ellisor, A.C., 1929, Correlation of the Claiborne of east Texas with the Claiborne of Louisiana: American Association of Petroleum Geologists Bulletin, v. 13, no. 10, p. 1335-1346. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Pg. 1339-1346. Milams member of Claiborne formation. Name proposed for that member of the Claiborne occurring below Saline Bayou member and above Crockett member. Type locality is in NE/4 sec. 17, T. 13, R. 3 W., Winn Parish, northwestern Louisiana, which is 0.5 to 0.75 mile southwest of Milams, on Arkansas Southern Railway. The section is (descending): (1) red clay, weathering orange, 6 feet; (2) gray plastic calcareous, fossiliferous, somewhat glauconitic clay with many corals, weathers dull orange red, with a few small lime nodules, 6 feet; (3) gray calcareous, very glauconitic fossiliferous clay, weathering orange red, with numerous small calcareous nodules, 10 feet; (4) zone of calcareous glauconitic concretions with fossil casts, 6 inches; (5) dark yellowish-gray, very glauconitic plastic fossiliferous clay, 3 feet; (6) badly weathered orange-red, very glauconitic fossiliferous sandy clay, many oysters, 10 feet, the upper 4 feet very ferruginous and indurated. [Occurs in northwestern Louisiana and eastern Texas (Angelina and Sabine Counties). Age is middle Eocene.]

Source: US geologic names lexicon (USGS Bull. 896, p. 1368).


Map showing publication footprint
  • Usage in publication:
    • Milams member
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Arkla basin
Publication:

Huner, John, Jr., 1939, Geology of Caldwell and Winn Parishes: Louisiana Department of Conservation and Geology Bulletin, no. 15, 356 p.


Summary:

Pg. 87, 91-95, pl. 3. Milams member of Cook Mountain formation. Stratigraphically restricted below to exclude lower 17 feet which are placed in newly defined Dodson member. As redefined, the Milams consists of about 50 feet of calcareous glauconitic shales, lignitic shales, and marl which occur above glauconitic fossiliferous sands of Dodson member and below fossiliferous ironstone zones of Saline Bayou member. Age is Eocene (Claiborne).

Source: US geologic names lexicon (USGS Bull. 1200, p. 2499).


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