TY - RPRT TI - Thermal maturity patterns in the Ordovician and Devonian of Pennsylvania using conodont color alteration index (CAI) and vitrinite reflectance (%Ro) AU - J.E. Repetski AU - R. T. Ryder AU - J.A. Harper AU - M.H. Trippi PY - 2006 UR - https://pubs.usgs.gov/publication/70028484 ID - 70028484 ER -