Geophysical signature of the Victoria property, vectoring toward deep mineralization in the Sudbury Basin
2016
AbstractExploration throughout KGHM International’s Victoria property in Sudbury, Ontario, occurred over an approximate 10-year period and resulted in the discovery of the Victoria Deposit. A variety of geophysical techniques were used with varying results to detect Cu-Ni-PGE-rich ore bodies at depth. Near-surface methods supplemented traditional mapping and geologic interpretation techniques to gain an understanding of property-scale depositional environments. The use of 3C borehole EM surveying facilitated the transition from a broad exploration program, which was based on surface geophysical signatures and geologic principles toward a targeted mineral definition campaign. The presence of off-hole features within several drillholes targeting a lesser massive sulfide lens identified a mass of strong conductors approximately 1 km deep. The drilling of thin-plate forward models derived from the borehole EMs resulted in the intersection of the Victoria Deposit. The tabular deposit has a downdip extent of mo...
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