The Sky occurrence is located at an elevation of approximately 1340 metres on a generally south-facing slope southeast of Rhine Ridge.
The area is underlain by Lower Cretaceous Skeena Group sediments and volcanic rocks which are intruded by a series of dikes and intrusive bodies of variable composition. Skeena rocks comprise sandstones, mudstones, volcanic-derived sandstones and andesite flows. The intrusive bodies vary from coarse grained porphyritic quartz monzonite to granite. Dikes are intermediate to mafic in composition and feldspar porphyritic.
Structurally, the entire sequence of rocks is cut by a major fault system that appears to follow the trace of "West Creek". This fault is offset by a least two crosscutting right-lateral faults which follow a roughly east-west orientation.
An extensive gossan zone exists on the property and is due to a widespread pyritic alteration zone along contacts of intrusive bodies with the host sediments and volcanics. The gossan is typified by a moderate to strong, orange-brown to reddish orange coloured limonite coating on the weathered rocks.
Massive sulphide mineralization comprising pyrite and arsenopyrite occurs in a hard silicified or silica cemented volcanic- derived sediment or volcanic rock. The sulphide mineralization occurs in two veins between 5 and 10 centimetres wide which strike 280 and 252 degrees and dip vertically to 85 degrees north, respectively. Two samples collected over a strike length of between 1.6 and 2 metres analysed up to 24 grams per tonne silver, 1.1 per cent zinc and greater than 9 per cent arsenic (Assessment Report 19361, page 13).
Approximately 500 metres east, in "West Creek", massive pyrite veins occur in a monzonite to granite intrusive body and parallel the dominant joint orientation of 285 degrees dipping 85 degrees north. The veins are 10 to 20 centimetres wide and are from 1 to 5 metres apart. There is a distinct sericitic alteration envelope developed around the veins. A sample from the veins analysed 0.9 per cent copper, 0.1 per cent zinc, 22.1 grams per tonne silver and 0.1 per cent bismuth (Assessment Report 19361, page 13).
Work History
In 1988, Geostar Mining Corp. completed a program of geological mapping and geochemical (rock, silt and soil) sampling on the area as the Sky 1-2 claims. The following year, Canadian-United Minerals Inc. completed a further program of geological mapping and geochemical (rock and soil) sampling on the Sky claims.
In 2015, Equity Exploration completed a program of prospecting and soil sampling on the area.
