- Usage in publication:
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- Silvey Gap sandstone
- Modifications:
-
- Named
- Dominant lithology:
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- Sandstone
- AAPG geologic province:
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- Appalachian basin
Summary:
Named as a formation in Redoak Mountain group. Named for Silvey Gap, Windrock quad, Anderson Co., eastern TN. Consists of sandstone. Maximum thickness is 60 ft, at type locality. Separated from underlying Fodderstack sandstone (new) by shale interval that ranges from 45 to 100 ft in thickness; separated from basal shale of Vowell Mountain group (new) by shale interval and Pewee coal. Age is Pennsylvanian (Pottsville series). Report includes geologic maps, cross sections, stratigraphic sections, and correlation chart.
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 ([ ]).