TY - RPRT TI - Stable isotope systematics and magmatic and hydrothermal processes in the Summitville, CO gold deposit AU - R. O. Rye AU - R.E. Stoffregen AU - P. M. Bethke PY - 1990 DO - 10.3133/ofr90626 UR - https://pubs.usgs.gov/publication/ofr90626 ID - ofr90626 ER -