Volcanics and sediments of the Jurassic Hazelton Group are intruded by quartz-diorite stocks and dykes of the Cretaceous to Tertiary Coast Plutonic Complex. A 2000 by 1000 metre, east-west trending gossan zone contains areas of copper and molybdenite mineralization which occur as fracture fillings and disseminations within the volcanics and intrusives.

The volcanics and sediments consist of banded tuffs, andesites, volcanic agglomerates, breccias, and siltstones. The rocks occupy a broad syncline with an east-northeast trending fold axis and are intensely fractured, responding to the northwest trending Dardenelle fault system.

A 250 metre long, 120 metre wide, and 15 metre thick volcanic breccia, within the volcanic rocks, strikes 115 degrees and dips 35 degrees to the northeast. It contains blebs, crystals and dissemi- nations of pyrite and minor chalcopyrite. A chip sample over 30 metres assayed 0.37 per cent copper and grab samples over 120 metres assayed 1.6 per cent copper, 0.34 grams per tonne gold and 19.5 grams per tonne silver (Assessment Report 4275). The breccia and, to a limited extent, the volcanics show carbonate and some sericitic alteration.

A porphyritic quartz-diorite stock, referred to as the Copper Stock, occurs 500 metres north of the breccia zone. It is about 150 metres wide and is sparsely mineralized with fracture fillings and disseminations of pyrite, chalcopyrite and molybdenite. A 120 metre chip sample assayed 0.05 per cent copper and trace molybdenite (Assessment Report 4275). Alteration in the stock includes sericitic and some carbonate.

Quartz veins, up to 25 centimetres wide, occur with various attitudes throughout the gossan area. Some have carbonate minerals and most have pyrite. Many of the veins also carry galena, sphal- erite, tetrahedrite, chalcopyrite and molybdenite. Associated alteration includes actinolite, chlorite, epidote, dolomite, anker- ite, limonite, pyrite and malachite.

The old B.X. Showing is a 1.2 metre wide quartz vein containing pyrite and molybdenite. It and other quartz veins outcrop along the banks of Kleanza Creek, north of the above showings.