Caber

Canada

InfiniTEM® en trou de forage a détecté un conducteur aussi petit que celui de Caber, et ce dans un rayon de plus de 475 mètres. L’utilisation de InfiniTEM® peut réduire les coûts de forage en espaçant les trous jusqu’à 800 mètres de distance au lieu de 400 mètres.

The Caber deposit (0.43 Mt @ 11.7 % Zn, 0.7 % Cu) is located in the Matagami mining camp. A conventional borehole EM survey and borehole InfiniTEM® surveys were tested at 200 metres and 475 m from the deposit.

At 200 metres from the deposit (Hole NCB-99-56), conventional BHEM reaches its detection limit. The anomaly is too weak for reliable data interpretation.

On the other hand, the borehole InfiniTEM^® anomaly is outstanding, at least 20 times greater amplitude than that of a conventional BHEM survey. Furthermore, the migrating cross-over indicates that the borehole intersected the conductor at an oblique angle.

At 475 metres from the deposit (Hole NCB-99-74), the conventional borehole EM survey does not show any anomaly.

InfiniTEM^® proves its greater radius of investigation by clearly mapping the deposit from a hole that is 475 m from the deposit.