TY  - RPRT
TI  - Thrust-ridge paleodepositional model for the Upper Freeport coal bed and associated clastic facies, Upper Potomac coal field, Appalachian Basin, U.S.A.
AU  - Edward S. Belt
AU  - P.C. Lyons
PY  - 1990
DO  - 10.1016/0166-5162(89)90055-4
UR  - https://pubs.usgs.gov/publication/70016418
ID  - 70016418
ER  -