TY - RPRT TI - Geology, geochemistry, and fluid-inclusion petrography of the Sapo Alegre porphyry copper prospect and its metavolcanic wallrocks, west-central Puerto Rico AU - Dennis P. Cox AU - Ileana Perez Gonzalez AU - J. Thomas Nash PY - 1975 UR - https://pubs.usgs.gov/publication/70232587 ID - 70232587 ER -