- Usage in publication:
-
- Skillern Chert Member*
- Modifications:
-
- Named
- Dominant lithology:
-
- Chert
- Limestone
- AAPG geologic province:
-
- Appalachian basin
Summary:
Named as member in lower part of Rockwood Formation. Named for exposures along Skillern Creek, Bledsoe Co., south-central Tennessee. Consists of chert and sandy limestone interbedded in beds as much as 0.5 ft thick. Limestone is gray green to gray brown, chert is gray to black; bedding is uneven and contains some chert occurring as irregularly shaped nodules. Also contains gray-brown, fine-grained, calcareous sandstone at base in several massive beds. Thickness is 44 ft at type section. Age is Early Silurian. Report includes cross sections, columnar sections, and measured sections.
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 ([ ]).