Abstract
Recent advances in geophysical instrumentation and signal processing followed by the development of robust 3D MT inversion codes gave the MT technique a new revival as a powerful tool applied in mining exploration and particularly for the detection of deep-seated deposits. The MT data used for the 3D inversions were collected with the TITAN-24 MT and ORION-3D MT surveys conducted in the Bukley Valley of BC, Canada, and in the High Western Cordillera of Chile respectively. The 3D MT models helped detect and delineate deep-seated highly conductive zones associated with porphyry-style mineralization and related hydrothermal alteration, confirmed by the recent drilling results.
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