TY  - RPRT
TI  - Comparative geochemistry of Devonian shale cores from the Appalachian Basin, Mason, Monongalia, and Upshur counties, West Virginia; Illinois Basin, Tazwell County, Illinois, and Clark County, Indiana; and Michigan Basin, Sanilac County, Michigan
AU  - Joel S. Leventhal
PY  - 1980
DO  - 10.3133/ofr80938
UR  - https://pubs.usgs.gov/publication/ofr80938
ID  - ofr80938
ER  -