USGS Visual Identifier

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Geologic Unit: Dunkard 

Publication:
White, I.C., 1891, Stratigraphy of the bituminous coal field of 
   Pennsylvania, Ohio, and West Virginia: U.S. Geological Survey 
   Bulletin, 65, 212 p.
Usage in Publication:
Dunkard Creek series*

Modifications: Geologic Province: Dominant Lithology:
 Named
  Appalachian basin
  

Summary:
Dunkard Creek series on Dunkard Creek, Greene Co., PA, includes 165 ft concealed beds above Gilmore sandstone and extends down to base of Cassville shales.
Source: GNU records (USGS DDS-6; Reston GNULEX). 


Publication:
Norling, D.L., 1958, Geology and mineral resources of Morgan 
   County, Ohio: Ohio Division of Geological Survey Bulletin, 
   no. 56, 131 p.
Usage in Publication:
Dunkard division

Modifications: Geologic Province: Dominant Lithology:
 Revised
  Appalachian basin
  

Summary:
Permian strat in OH are grouped under term Dunkard, which has been given rank of group by U.S. Geological Survey, and of series in earlier publications of OH Geological Survey. Washington and Greene subdivisions of Dunkard have been classified as formations. Latter are herein raised to series rank, thus making main subdivisions of Permian the same stratigraphic rank as those in Pennsylvanian. Dunkard becomes a sort of superseries and is superfluous. Term in OH is synonymous with term Permian. In this report, term Dunkard division is used in order to keep term under consideration until decision is made as to its validity in current stratigraphic usage.
Source: GNU records (USGS DDS-6; Reston GNULEX). 


Publication:
Lyons, P.C., 1989, Geologic Map of the Sissonville quadrangle, 
   Kanawha, Jackson, and Putnam Counties, West Virginia: U.S. 
   Geological Survey Geologic Quadrangle Map, GQ-1660, 1 sheet, 
   scale 1:24,000 [http://ngmdb.usgs.gov/Prodesc/
   proddesc_1176.htm]
Usage in Publication:
Dunkard Formation*

Modifications: Geologic Province: Dominant Lithology:
 Revised
Areal limits
  Appalachian basin
  

Summary:
Rank changed from Dunkard Group to Dunkard Formation for use in vicinity of Sissonville quad., Kanawha, Jackson, and Putnam Cos., WV.
Source: GNU records (USGS DDS-6; Reston GNULEX).