Mineralization of the Project is part of the volcanogenic massive sulphide (VMS), or volcanic-hosted massive sulphide (VHMS) spectrum of deposits. The Kutcho deposits are VMS deposits of the Kuroko type or felsic volcaniclastic depending upon the classification scheme. Mineralization is related to felsic volcanism in island arc or back-arc tectonic settings. Perhaps the most significant feature of VMS deposits from an exploration perspective is their tendency to occur in clusters. The Property contains three known Kuroko-type volcanogenic massive sulphide (VMS) deposits. They are aligned in a westerly plunging linear trend and from east to west they are called the Main, Sumac, and Esso deposits.
Mineralization occurs as three deposits along a 3.5 km trend. Sulphide minerals occur in a series of massive sulphide lenses and include pyrite, sphalerite, chalcopyrite, bornite, minor chalcocite, and trace tennantite, galena, digenite, djurleite, and idaite. Gangue minerals include quartz, dolomite, ankerite, sericite, gypsum, and anhydrite.
The three deposits form a westerly plunging linear trend, termed the Main, Sumac, and Esso deposits from east to west. The Main deposit comes to surface at its eastern end, whereas the Esso deposit occurs at depths about 400 m below surface,
Main Deposit
The Main deposit has an elliptical, lenticular shape with approximate dimensions of 1,600 m long, 500 m wide (down-dip), and approaching 40 m in true thick ........
