The Jon occurrence is located on a southwest-facing slope, approximately 2 kilometres southwest of Calling Lake.

The area is underlain by several phases of the Upper Triassic to Lower Jurassic Guichon Creek Batholith. The showing occurs in Chataway variety hornblende-biotite granodiorite to quartz diorite of the Highland Valley phase. These rocks are coarse-grained and weakly foliated. Hornblende crystals are characteristically regularly distributed, equidimensional, euhedral and markedly poikilitic. Bethlehem and Bethsaida phase granodiorites are in normal fault contact to the east. Guichon variety granodiorites (Highland Valley phase) outcrop to the west (EMPR Map 30). Numerous, small aplite and pegmatite dikes cut the intrusives.

Irregular hydrothermal alteration is widespread and locally intense. Alteration minerals include epidote, chlorite, sericite and minor limonite. Trace malachite, chalcopyrite or bornite occur as coatings on fractures in shear zones associated with epidote alteration.

Numerous zones of trace copper mineralization were identified in 1970 in the occurrence area and their locations can be found in Assessment Report 2700, pg. 35.

Work History

In 1965, Cominco Ltd. completed a 12.8 line-kilometre ground magnetic survey, geological mapping and trenching on the Nancy, B.L. and Tom claims.

In 1967, Zenith Mining Corp. Ltd. completed a program of soil sampling and trenching on the area located immediately south of the Jon occurrence as the Lorna, Mars, Mat and Pam claims. The following year, a program of soil sampling was completed on the Mac and Zen claims, adjacent to the Lorna claims to the northeast. In 1969, Zenith Mining Corp. Ltd. completed a program of soil sampling and an induced polarization survey on the Lorna property.

Also in 1969, Mollie Mac Mines Ltd. completed program of soil sampling program and an induced polarization on the area as the Jon, Jonn, Brennan and Ban claims.

In 1970, Dowa Mining Co. Ltd. completed a program of geological mapping, ground magnetic, electromagnetic and seismic surveys on the area as the Jon, Lorna, Mat and Pam claims of the Mac property. In 1976 and 1977, Leonard Peckham prospected the area as the Kik claims.

In 1980, Cominco Ltd. completed 60.0 line-kilometres of ground magnetometer and induced polarization surveys on the area as the Island property. The following year, 22.9 line-kilometres of induced polarization surveys were completed on the property. In 1982, Cominco Ltd. completed an induced polarization survey on the area as the Island property.