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Geology of the Dunkard Group
(Upper Pennsylvanian-Lower Permian)
in Ohio, West Virginia, and Pennsylvania

Bulletin 73

By Wayne D. Martin
49 p., 30 figures, 2 tables
1998
Price: $12.00 (plus sales tax and shipping)

Bulletin 73 summarizes Dr. Wayne Martin's 50 years of investigation of the Dunkard Group. These rocks have been studied for more than a century and their age is still controversial. While Bulletin 73 does not resolve the age controversy, it does discuss previous studies and provides information on lithofacies, including mudstone, shale, sandstone, limestone, and coal; clastic-rock composition and petrology; fossils; and depositional environments.

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Last update November 30, 2010
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