TY - RPRT TI - Volume of organic-rich Devonian shale in the Appalachian Basin: relating "black" to organic-matter content: Geologic notes AU - Ronald R. Charpentier AU - James W. Schmoker PY - 1982 DO - 10.1306/03b59b1b-16d1-11d7-8645000102c1865d UR - https://pubs.usgs.gov/publication/70188943 ID - 70188943 ER -