Sedimentary exhalative (sedex) zinc-lead-silver deposit model Emsbo, Poul ; Seal, Robert R. ; Breit, George N. ; Diehl, Sharon F. ; Shah, Anjana K. Abstract Publication: USGS Report Pub Date: 2016 DOI: 10.3133/sir20105070N Bibcode: 2016usgs.rept...11E