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Usage:
Gretna Shale Bed of South Bend Limestone Member of Stanton Limestone of Lansing Group (KS,NE)
Gretna Shale Member of South Bend Formation of Lansing Group (MO)
Geologic age:
Late Pennsylvanian (Virgilian?)
Type section, locality, area and/or origin of name:
Exposures at the former Gretna Fish Hatchery (now Schramm Park), lower Platte River valley, NE/4 SW/4 sec. 12, T. 12 N., R. 10 E., Springfield quadrangle, Sarpy Co., southeastern NE (Pabian and Strimple, 1993).
AAPG geologic province:
Nemaha anticline
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 ([ ]).