| Pound Gap Devonian through Pennsylvanian,
Pine Mountain Thrust on US 23 Above & South of Jenkins, Kentucky / 103 Pound Gap Christopher Kendall 11/24/2004 Click on Galleries to return to USC
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103 Pound Gap where the upper portion of the thin bedded Mississippian Grainger Formation is composed of alternating thin sands and shale and the middle portion composed of varying thicknesses of sand separated by bedding planes marked by thin shale.