TY - RPRT TI - Hydrothermal alteration and mass exchange in the hornblende latite porphyry, Rico, Colorado AU - P.B. Larson AU - C. G. Cunningham AU - C. W. Naeser PY - 1994 DO - 10.1007/bf00310700 UR - https://pubs.usgs.gov/publication/70017089 ID - 70017089 ER -