Usage:
Dorcheat Member of Schuler Formation of Cotton Valley Group (subsurface of AR*,LA*,MS,TX*)
Dorcheat Formation (LA-subsurface)
Dorcheat Formation of Cotton Valley Group (LA-subsurface)
Subunits:
MEMBER STATUS: Wesson Tongue (subsurface of AR,LA,TX).
Geologic age:
Jurassic, Late*
Type section, locality, area and/or origin of name:
Type section (subsurface; nearshore facies): depth-interval 6,420 to 7,510 ft, Atlantic Refining Company's Pinewoods Lumber Company No. 1 well, Dorcheat field discovery well, in center NE/4 NE/4 sec. 16, T. 18 S., R. 22 W., Columbia Co., AR. Named from Dorcheat oil field, Columbia Co., AR (Swain, 1944).
AAPG geologic province:
Arkla basin*
East Texas basin*
Mid-Gulf Coast 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 ([ ]).