Ground geophysical investigations over the Casmo molybdenite deposit
CIM Bulletin, Vol. 76, No. 852, 1983
A. SACIT SAYDAM, Senior Geophysicist, Shell Canada Resources Limited, Calgary, Alberta
Induced polarization/resistivity and magnetometer surveys have been carried out over the Casmo molybdenite deposit in mountainous terrain of northern British Columbia. Molybdenite occurs in quartz-bearing fractures with or without pyrite along a zone of hydrothermal alteration and intense fracturing, believed to be a northerly dipping fault zone, within medium-grained equigranular and porphyritic quartz monzonite.
The molybdenite-bearing zone is characterized by a significant resistivity low, a metal factor high and a subtle IP low flanked by highs outside the mineralized area. Magnetic trends, indicated by a magnetometer survey, generally parallel the zone and strike direction of the different intrusive phases, and have been helpful in delineating contacts and faults in the area.
Mineral exploration, Casmo deposit, Molybdenite deposit, Magnetometer surveys, IP resistivity surveys, Geophysics.