- Usage in publication:
-
- Rocky Gap sandstone
- Modifications:
-
- Named
- Dominant lithology:
-
- Sandstone
- AAPG geologic province:
-
- Appalachian basin
Summary:
Rocky Gap sandstone named. Shown on diagrammatic cross section as about 60 ft of calcareous sandstone and conglomeratic sandstone.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Rocky Gap Sandstone*
- Modifications:
-
- Overview
- AAPG geologic province:
-
- Appalachian basin
Summary:
Rocky Gap Sandstone of Swartz (1929) adopted for use by U. S. Geological Survey. "The Rocky Gap is composed of light-brown, medium- to coarse-grained, cross-bedded calcareous sandstone with vuggy molds of brachiopods and crinoids. Cross beds are large scale, planar. Iron and manganese streaks, blebs, and stains are common * * * formation averages 65 to 75 ft in thickness * * *." Underlain by Tonoloway Limestone and overlain by Huntersville Chert.
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 ([ ]).