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- Usage in publication:
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- Sandy Grove Sandstone Member*
- Modifications:
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- Named
- Dominant lithology:
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- Sandstone
- AAPG geologic province:
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- Appalachian basin
Summary:
Named Sandy Grove Sandstone Member of Conemaugh Formation. Composed of coarse grained sandstone, massive to thin bedded upwards. Base of member includes rounded to angular quartz and limestone pebbles. Grayish-red shale beds intertongue in the upper part. Thickness is 54 ft at type section, ranges from 5 to 95 ft where mapped. Basal part fills channels eroded into upper part of underlying grayish-red shale sequence. Upper contact is conformable.
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 ([ ]).