Usage:
Ferry Lake Anhydrite (AL)
Ferry Lake Anhydrite of Trinity Group (AR*,LA*,MS*,TX*)
Ferry Lake Formation (FL)
Ferry Lake Formation of Trinity Group (MS)
Ferry Lake Member of Glen Rose Formation of Atascosa Group (TX)
Geologic age:
late Early Cretaceous (Albian)*
Type section, locality, area and/or origin of name:
Type section (subsurface): depth-interval 3,823 to 4,072 ft, Gulf Refining Company Caddo Levee Board "O" Gas Unit No. 1 well, Jeems Bayou field, in sec. 10, T. 20 N., R. 16 W., Caddo Parish, LA (Forgotson, 1957).
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 ([ ]).