- Usage in publication:
-
- Wann formation
- Modifications:
-
- Named
- Dominant lithology:
-
- Shale
- Sandstone
- Limestone
- AAPG geologic province:
-
- Chautauqua platform
Summary:
Named as uppermost formation (of 3) in the northern area of the Sapulpa group. No type locality designated. Occurs in northeastern OK on the Chautauqua platform. Consists of a series of shales, sandstones, and limestones occupying the interval between the top of the Curl formation (new) and the Stanton limestone (as the Stanton is used by Haworth and Bennett, 1908). In this report, is the youngest formation in the Nowata quad. Divided into three members (ascending): Hogshooter limestone member (new), Copan member (new), and Stanton limestone member. Copan has the newly named Dewey and Avant Limestone Lentils. Overlies the Curl formation (new) of the Sapulpa group. Stratigraphic chart. Of Pennsylvanian age.
Source: GNU records (USGS DDS-6; Denver GNULEX).
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 ([ ]).