THE LODE-PORPHYRY MODEL AS DEDUCED FROM THE CUMARU MESOTHERMAL GRANITOID-HOSTED GOLD DEPOSIT, SOUTHERN PARA, BRAZIL

Deciphering the Evolution of Ore Fluids at The Batu Hijau Copper-~Gold Porphyry Deposit, Sumbawa, Indonesia

................................................................................................................................................... iii ACKNOWLEDGMENTS ............................................................................................................................. v LIST OF TABLES .........................................................................................

Geology and Alteration at the Mount Milligan Gold-copper Porphyry Deposit, Central British Columbia

The Mount Milligan deposit, centred at latitude SS”O8’ north and longitude 124”04’ west, is 100 kilometres westsouthwest of Mackenzie and 160 kilometres northwest of Prince George in central British Columbia. The deposit occurs in gently rolling topography (Plate 2-6-l) 5 kilometres due south of Mount Milligan. Access to the property is by a 93.kilometre logging road that connects with the Hart...

Geology of the Poplar Porphyry Copper - Molybdenum Deposit

The Poplar copper-molybdenum porphyry deposit, 50 kilometres south-southwest of Houston, is centred near 54 degrees 01 minute north and 126 degrees 50 minutes west. The property is accessible from Houston via 80 kilometres of forest access roads along the Morice River, Owen Lake, Tahtsa Reach, and Poplar Lake. The deposit is situated on the northeast shore of Tagetochlain (Poplar) Lake in an ar...

SOME SULFIDE-SILICATE ASSEMBLAGES FROM THE SAR CHESHMEH PORPHYRY COPPER DEPOSIT, KERMAN, IRAN

Studies of three selected sulfide-silicate assemblages from ore samples from the Sar Cheshmeh porphyry copper deposit led to some ore genetic conclusions. The presence of chalcopyrite blebs in the groundmass orthoclase and quartz from the stock suggests liquid immiscibility in a cooling late-magmatic melt. This is in favor of the orthomagmatic model proposed for porphyry copper deposits. Th...

MODELLING THE As-Au ASSOCIATION IN HYDROTHERMAL GOLD MINERALIZATION: EXAMPLE OF ZARSHURAN DEPOSIT, NW IRAN