- Usage in publication:
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- Douglas shale
- Modifications:
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- Named
- Dominant lithology:
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- Shale
- AAPG geologic province:
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- Appalachian basin
Summary:
Douglas shale, exposed at Douglas RR station, McDowell Co., WV, is a dark to black sandy shale, 5 to 15 ft thick. Underlies Lower Nuttall sandstone and overlies Lower Douglas coal. Unit carries a marine fauna that has not previously been described. Included in New River group.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
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- Douglas shale
- Modifications:
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- Revised
- AAPG geologic province:
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- Appalachian basin
Summary:
Douglas shale and underlying Lower Douglas coal included in Kanawha group. Douglas shale, marine shale 5 to 15 ft thick, underlies Lower Dotson sandstone and lies a few inches to >15 ft above Upper Nuttall sandstone. [This definition was also followed by D.B. Reger in West Virginia Geological Survey Webster Co. Rept., 1920, and on Nicholas Co. Rept., 1921.]
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Douglas shale
- Modifications:
-
- Overview
- AAPG geologic province:
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- Appalachian basin
Summary:
Douglas in southern WV is an unranked black, sandy shale containing brackish-water to marine fauna. Overlies Lower Douglas coal. It is the lowest marine horizon in the Kanawha Formation.
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 ([ ]).