- Usage in publication:
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- Surgener formation
- Modifications:
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- Named
- Dominant lithology:
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- Limestone
- Mudstone
- AAPG geologic province:
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- Appalachian basin
Summary:
Named the Surgener formation in southwestern VA and northeastern TN for Surgener Cemetery, Lee Co., VA. Consists of chalky weathering dark limestone, cherty dark limestone, gray to buff mudstone, and maroon mudstone. Underlies Dryden formation. At Hagan, VA, sequence includes Poteet, Rob Camp, and Martin Creek formations of Miller and Brosge (1950). The Surgener is of Middle Ordovician (Mohawkian) age.
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 ([ ]).