- Usage in publication:
-
- Logan sandstone group
- Modifications:
-
- Named
- Dominant lithology:
-
- Sandstone
- AAPG geologic province:
-
- Appalachian basin
Summary:
Named for Logan, Hocking Co., south-central OH. Consists of buff-colored, fine-grained sandstone. Thickness is 133.5 ft. Underlies Maxville limestone or, where that is absent, the coal measures. Overlies 85 ft of alternate fine-grained Waverly-like seams and conglomerate [Waverly conglomerate) exposed at Black Hand, where it is 50-60 ft thick. [Age is Mississippian.]
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 ([ ]).