TY - RPRT TI - A New Occurrence Model for National Assessment of Undiscovered Volcanogenic Massive Sulfide Deposits AU - W.C. Pat Shanks AU - Cynthia Dusel-Bacon AU - Randolph Koski AU - Lisa A. Morgan AU - Dan Mosier AU - Nadine M. Piatak AU - Ian Ridley AU - Robert R. Seal AU - Klaus J. Schulz AU - John F. Slack AU - Roland Thurston PY - 2009 DO - 10.3133/ofr20091235 UR - https://pubs.usgs.gov/publication/ofr20091235 ID - ofr20091235 ER -