TY - RPRT TI - Mississippi Valley-type lead-zinc deposits through geological time: Implications from recent age-dating research AU - D. L. Leach AU - D. Bradley AU - Michael T. Lewchuk AU - David T. A. Symons AU - G. De Marsily AU - J. Brannon PY - 2014 DO - 10.1007/s001260100208 UR - https://pubs.usgs.gov/publication/70022794 ID - 70022794 ER -