TY - RPRT TI - The Ag-Mn-Pb-Zn vein, replacement, and skarn deposits of Uchucchacua, Peru; studies of structure, mineralogy, metal zoning, Sr isotopes, and fluid inclusions AU - M. Andrew Bussell PY - 1990 DO - 10.2113/gsecongeo.85.7.1348 UR - https://pubs.usgs.gov/publication/70199495 ID - 70199495 ER -