- Usage in publication:
-
- Downeys Bluff member
- Modifications:
-
- Named
- Dominant lithology:
-
- Limestone
- AAPG geologic province:
-
- Illinois basin
Summary:
Apparently named as a member of Renault formation in southeastern IL. Named for Downeys Bluff, Hardin Co., IL. Name was proposed by F.E. Tippie (Subsurface stratigraphy of lower Chester formations in parts of Illinois and western Kentucky, Illinois State Geological Survey, unpub. manuscript). He correlates upper part of Renault with basal Paint Creek formation of western IL and proposed name Downeys Bluff for "this member of the Paint Creek" [quoted to point out possible error in Atherton's text] based on section at Downeys Bluff. Remainder of Renault is here referred to as Shetlerville member. Overlain by Bethel sandstone. Age is Mississippian [Chester series].
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Downeys Bluff Member*
- Modifications:
-
- Overview
- AAPG geologic province:
-
- Illinois basin
Summary:
Used as Mississippian (Chesterian) Downeys Bluff Member of Paoli Limestone in IN. Authors follow usage of Shaver and others (1986).
Source: GNU records (USGS DDS-6; Reston 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 ([ ]).