Jameland mine, Jamieson Township, Timmins, Cochrane District, Ontario, Canadai

Regional Level Types
Jameland mine	Mine
Jamieson Township	Township
Timmins	City
Cochrane District	District
Ontario	Province
Canada	Country

VMS deposit.

History:

1948-56: Dominion Gulf Company - airborne geophysics, ground geophysics, mapping, DD-36-18 600 ft.
1959-68: Jameland Mines Limited - DD-102-65,000 feet, ground geophysics.
1969-72: Jameland Mines Limited - shaft sinking, production milling commences at Kam Kotia mill in November 1969.
1972: reserves exhausted.
1974-75: Cominco Limited - property optioned, exploration.

Geology:

The ore is contained in approximately 10 irregularly shaped pods that plunge 30-35°SE within a sheared sequence of basalt, andesite and felsic welded tuff. The host rocks are chloritized and brecciated.
At the extreme west end of the zone, the sulphide body is one single compact mass having a horizontal width of about 50 feet while 900 feet to the east, near the centre of the zone, sulphide bodies are spread over a horizontal width of 300 feet. Individual lenses have a 100- to 300-foot vertical extent, 100- to 400-foot strike length and an average width of 25 feet. They are confined to a zone about 1500 feet long and 200 feet wide. Stringer type, copper ore is confined to the upper lenses and massive zinc rich ore to the lower lenses. The massive sulphide ore has a combined sulphide content that ranges from 60 to 90% with copper values in excess of 1% and zinc values from 5-10%. Assay values of 0.17 oz/t Au, 0.46% Zn and 1.57% Cu over 2 feet were recovered from sections of andesite in drill core. Additional assays from early diamond drilling intersected: 6.40% Cu and 0.17 oz/t Au over 5.2 feet; and 3.64% Zn over 2.5 feet.

Other Regions, Features and Areas containing this locality

References