TY  - RPRT
TI  - Disturbed zones: Indicators of deep-seated subsurface faults in the Valley and Ridge and Appalachian structural front of Pennsylvania
AU  - Howard A. Pohn
AU  - Terri L. Purdy
PY  - 1982
DO  - 10.3133/ofr82967
UR  - https://pubs.usgs.gov/publication/ofr82967
ID  - ofr82967
ER  -