TY - RPRT TI - A search for stratiform massive-sulfide exploration targets in Appalachian Devonian rocks; a case study using computer-assisted attribute-coincidence mapping AU - Helmuth Wedow PY - 1983 DO - 10.3133/ofr83352 UR - https://pubs.usgs.gov/publication/ofr83352 ID - ofr83352 ER -