The Toketic occurrence is located on one of the north tributaries of Pimainus Creek, approximately 10 kilometres east of Spences Bridge.
The area is underlain by Border phase granitic rocks of the Upper Triassic to Lower Jurassic Guichon Creek Batholith, which intrude Upper Triassic Nicola Group pyroclastics and sediments to the east. Middle and Upper Cretaceous Spences Bridge Group volcanics occur in fault contact to the south.
Locally, stringers and veins of specular hematite with minor chalcopyrite and pyrite are erratically distributed along a strong shear zone and brecciated wallrock within diorite and quartz diorite of the Guichon Creek Batholith. The shear zone strikes 345 and dips approximately 65 degrees east (Minister of Mines Annual Report 1961). Stringers are described as rarely being more than 5-centimetres wide and a few are continuous for more than 0.9 metres.
Assays are reported to average 0.3 per cent copper (Assessment Report 5002).
Work History
A 15-metre long adit was driven along the mineralized shear zone on the NW 12 (later G.D. 1) claim, whereas another adit and winze is reported on the NW 13 claim to the west of the previous adit (Geological Survey of Canada Memoir 262). Underground workings and drilling are known to have taken place over a 60 by 24 metre area.
In 1956, New Jersey Zinc Exploration Co. Ltd. completed a program of soil sampling and a 55.5 line-kilometre ground magnetic survey on the area as the Toketic property.
In 1960, Northwest Ventures Ltd. completed a ground magnetic survey on the area as the VL claims.
In 1969 and 1970, Largo Mines Ltd. completed programs of geochemical (rock and soil) sampling and ground magnetic and induced polarization surveys on the area as the Cowbird, DS and Pat claims. Also at this time, Largo Mines completed a program of soil sampling on the Don and Ken claims to the south of the occurrence.
In 1972, Cominco Ltd. completed a program of soil sampling on the area as the Tom and VL claims of the Toketic property. In 1974, a 15.0 line-kilometre ground magnetic and induced polarization survey was completed on the GD, TJM, Tom and VL claims. In 1978, a 7.3 line-kilometre ground induced polarization survey was completed on the TOK claim.
