TY - RPRT TI - Late Mesozoic and Cenozoic tectonics and the age of porphyry copper prospects: Chignik and Sutwik Island quadrangles, Alaska Peninsula AU - Frederic H. Wilson PY - 1980 DO - 10.3133/ofr80543 UR - https://pubs.usgs.gov/publication/ofr80543 ID - ofr80543 ER -