GEOLOGY OF THE KITSAULT MOLYBDENUM DEPOSIT, BRITISH COLUMBIA.

The Kitsault molybdenum deposit is related to the 54-m. y. -old Lime Creek Intrusive Complex which is hosted by sedimentary rocks along the eastern margin of the Coast Plutonic Complex. The Lime Creek Complex is a series of nested stocks that intrude the Bowser Lake Group graywackes and argillites of Jurassic age. Mineralization is related to the Central stock and Northeast Porphyry. The molybdenite shell generally occupies the contract zone of the Central stock. Quartz-pyrite, with or without scheelite veins occurs on the hanging wall of the molybdenite zone, while barren quartz veins occupy the footwall. A series of postmolybdenite polymetallic sulfide quartz veins has a northeast trend and a greater lateral extent than any other vein type. Four ages of mineralization have been identified. Hydrothermal alteration is directly related to the mineralization. There appear to be several significant similarities and differences between the Kitsault-type deposits and those of the Climax type, which the paper discusses. Refs.