U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 02-302

Thermal Maturity Patterns (CAI and %R_o) in the Ordovician and Devonian Rocks of the Appalachian Basin in Pennsylvania

By John E. Repetski, ¹ Robert T. Ryder, ¹ John A. Harper, ² and Michael H. Trippi¹

Online Version 1.2

Version History

Version 1.2. In several figures, the symbols were obscurred by the shading. These figures have been corrected.

Version 1.1. In figure 9, the symbols for Martinsburg Formation and Hamburg Sequence were reversed and have been corrected.

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