U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Geologic Unit: Myatt
Search archives
Map showing publication footprint
  • Usage in publication:
    • Myatt lentil
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Bentonite
    • Sand
  • 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. 149 (fig. 7), 161-168. Myatt lentil of Verda member of Yazoo clay of Jackson group. A marine lentil characterized by a yellowish-brown bentonite bed and fossiliferous sand. Thickness near Caldwell-Catahoula Parish line about 34 feet. Occurs near middle of member and stratigraphically above Bayou Calamus lentil. Age is late Eocene (Jackson).
Well exposed at Myatt (Wyant) Landing on west bank of Ouachita River in northeast corner SW/4 NE/4 sec. 4, T. 11 N., R. 4 E., Caldwell Parish, central LA.

Source: US geologic names lexicon (USGS Bull. 1200, p. 2664).


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 ([ ]).