TY - RPRT TI - Petrology of volcanic rocks associated with silver-gold (Ag-Au) epithermal deposits in the Tonopah, Divide, and Goldfield Mining Districts, Nevada AU - Edward A. du Bray AU - David A. John AU - Joseph P. Colgan AU - Peter G. Vikre AU - Michael A. Cosca AU - Leah E. Morgan PY - 2019 DO - 10.3133/sir20195024 UR - https://pubs.usgs.gov/publication/sir20195024 ID - sir20195024 ER -