TY  - RPRT
TI  - Stratigraphic framework and depositional sequences in the Lower Silurian regional oil and gas accumulation, Appalachian Basin: From Ashland County, Ohio, through southwestern Pennsylvania, to Preston County, West Virginia
AU  - Robert T. Ryder
PY  - 2004
DO  - 10.3133/i2810
UR  - https://pubs.usgs.gov/publication/i2810
ID  - i2810
ER  -