The Flambeau Cu-Zn deposit in northwestern Wisconsin, USA, is one of several volcanogenic massive sulfide (VMS) deposits in the state but remains the only one that has been mined because of unfavorable state mining ...

The Lobo Zn-Cu deposit in northwestern WI, USA, is one of several volcanogenic massive sulfide (VMS) deposits in the state. This deposit has never been mined; therefore, further studies can only be conducted by examining ...