“…Milligan copper gold porphyry deposit, Canada (Oldenburg et al, 1997), in shallow coal mine workings (Johnson, 2003), in the East Pennine Coalfield, UK (Chambers et al, 2007), in uranium mining sides (Legault et al, 2008;Ramalho et al, 2009) and in Landusky gold mine, Montana, USA (Rucker et al, 2009). Doyle (1990) also extensively discussed the gold exploration by electrical and VLF methods.…”