Usage:
Sligo Formation (AL,AR*,FL,LA*,MS*,TX*)
Sligo Formation of Nuevo Leon Group (LA,TX)
Sligo Formation of Trinity Group (TX)
Sligo Member of Travis Peak Formation of Trinity Group (TX)
Subunits:
Pettet Limestone Member (AR,LA,TX).
Geologic age:
Early Cretaceous*
Type section, locality, area and/or origin of name:
Sligo Field, Bossier Parish, northwestern LA (Imlay, 1940).
Type not designated, but formation is described in subsurface: Stanolind Oil and Gas Company Dillon Heirs No. 131 well, in sec. 14, T. 21 N., R. 15 W., Caddo Parish, LA, and in Amerada Petroleum Corp. Halff and Oppenheimer No. 8 well, southwest of Pearsall, Frio Co., TX (Imlay, 1940).
AAPG geologic province:
Arkla basin*
Gulf Coast 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 ([ ]).