Usage:
Sussex Sandstone (WY)
Sussex Sandstone Member of Steele Shale (MT*,WY*)
Sussex Sandstone Member of Cody Shale (WY*)
Sussex Sandstone Bed of Gammon Member of Pierre Shale (WY*)
Sussex Sandstone Bed of Steele Member of Cody Shale (WY*)
Geologic age:
Late Cretaceous (Campanian)*
Type section, locality, area and/or origin of name:
Not designated. Present in Powder River basin. Exposed at surface near Salt Creek oil field [Natrona Co., central WY]. Origin of name not stated by author, but probably named from Sussex oil field in [secs. 22 and 23], T. 42 N., R. 78 W., Johnson Co., WY (Wilson, 1951).
AAPG geologic province:
Powder River 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 ([ ]).