TY - RPRT TI - Reply to Discussion on "Mississippi Valley-type lead–zinc deposits through geological time: implications from recent age-dating research" AU - David L. Leach AU - Dwight Bradley AU - Michael T. Lewchuk AU - David T. Symons AU - Wayne R. Premo AU - Joyce Brannon AU - G. De Marsily PY - 2002 DO - 10.1007/s00126-002-0292-5 UR - https://pubs.usgs.gov/publication/70209546 ID - 70209546 ER -