Dave Branch shale member (informal) of Grundy Formation of Breathitt Group (KY)
Informal. The rank or lithologic term should not be capitalized.
late Early Pennsylvanian (Bashkirian; Westphalian A; late Morrowan)
Type section: spillway cut at the Laurel River Dam, near Dave Branch, Sawyer quadrangle, Whitley Co., KY. Carter coordinate location is 12-F-63, 3,300 [ft] from south line and 400 [ft] from east line (Chesnut, 1991).
Appalachian basin
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