Geophysical Exploration Leading to The Discovery of the Faro Deposit

CIM Bulletin, 1973

J. S. BROCK (at time of writing) , Vice-President, Exploration, Dynasty Explorations Limited, Vancouver, B.C

Magnetic, electromagnetic and gravimetric surveys have played an important role in the mineral exploration leading to the discovery of three major massive sulphide deposits in the Anvil-Vangorda area of the Yukon Territory. During 1964 and 1965 a saturation p•rospecting program, relying heavily on the integrated use of airborne and ground geophysical survey techniques, led to the discovery of the Faro deposit, which was subsequently proven to be a 63-millionton lead-zinc orebody. Locating the Faro deposit, the largest found to date in this overburden-covered region, involved an exploration sequence requiring the selection of a favourable geologic environment, aeromagnetic and electromagnetic surveys, property acquisition of anomalous areas and detailed ground geophysical surveys, followed by rotary drill testing, detailed gravimetric surveys and diamond core drilling.
Keywords: aeromagnetic survey, Faro Creek, geophysical, gossan, phyllite, Deposits, exploration, Gravity, sulphide, Sulphides, Survey, Surveys