TY  - RPRT
TI  - Middle Eocene intrusive igneous rocks of the central Appalachian Valley and Ridge province - Setting, chemistry, and implications for crustal structure
AU  - C. Scott Southworth
AU  - Karen J. Gray
AU  - John F. Sutter
PY  - 1993
DO  - 10.3133/b1839j
UR  - https://pubs.usgs.gov/publication/b1839J
ID  - b1839J
ER  -