TY - RPRT TI - A geologic history of the north-central Appalachians, part 2: The Appalachian basin from the Silurian through the Carboniferous AU - R. T. Faill PY - 1997 DO - 10.2475/ajs.297.7.729 UR - https://pubs.usgs.gov/publication/70019887 ID - 70019887 ER -