TY - RPRT TI - Molecular and isotopic gas composition of the Devonian Berea Sandstone and implications for gas evolution, eastern Kentucky AU - T. M. Parris AU - Paul C. Hackley AU - S. F. Greb AU - C. F. Eble PY - 2021 DO - 10.1306/10142019103 UR - https://pubs.usgs.gov/publication/70219061 ID - 70219061 ER -