Suggested citation and version history for Mosier, D.L., Berger, V.I., and Singer, D.A., 2009, Volcanogenic massive sulfide deposits of the world; database and grade and tonnage models: U.S. Geological Survey Open-File Report 2009-1034 [http://pubs.usgs.gov/of/2009/1034/]. Version 1.0 April 30, 2010 Replaced VMS.kml with a new one that works with Google Earth, v. 5.1+ March 17, 2009 Initial release online at http://pubs.usgs.gov/of/2009/1034/