Wildcat's Property at Foster River
posted on
Jan 13, 2009 05:15PM
The company is now known as FUSE Cobalt.
This summary comes from the Wildcat website - underlining and emphasis is mine. (Zn = zinc, Pb = lead, Cu = copper).
The Foster River Property, 100% owned by Wildcat Exploration Ltd., is a base metal project with geological characteristics similar to the Broken Hill Main Lode. The Broken Hill Main Lode is a world-class deposit developed by BHP in Australia that hosts greater than 300 million tonnes of lead, zinc and silver in excess of 15% combined lead and zinc.
The project, comprised of five contiguous mining claims totaling 11,873 hectares, is located immediately west of Hewetson Lake which is approximately 140 kilometres northwest of the town of La Ronge in northern Saskatchewan. The property is accessible by air.
The Foster River property lies along the eastern margin of the Wollaston Basin which comprises a sequence of polydeformed and metamorphosed Paleoproterozoic sediments overlying Archean granitoid basement. Base metal mineralization (zinc, copper, lead and silver) occurs along the eastern margin of the Wollaston basin and spans several hundred kilometers from the George Lake deposit to the north to the Cable showing in the south. In the Hewetson Lake area a 45 kilometer long favourable mineralized horizon stretches between the Mackie and Cable showings and contains numerous mineral occurrences. The Foster River property encompasses a 20 kilometer stretch of this horizon and hosts five Zn-Pb, one Cu and one gold showing. The main showings on the property are Sito East, Sito West, Sito South, George and Fable (Figure 1). The Fable Lake showing contains zinc mineralization has been traced along a strike length of approximately 4 kilometers.
Prior to 1965 the Foster River area and a significant portion of the Wollaston basin was extensively explored for uranium. Base metal exploration began in the Hewetson Lake area in the late 1960's with the discovery of boulders containing base metals. In 1971 the first in-situ base metal mineralization was discovered at Sito Lake, northwest of Hewetson Lake by E. Partridge. With this discovery, base metal exploration continued until about 1974 and included geological mapping, boulder prospecting, ground geophysical surveys, and diamond drilling. Between 1974 and 1991 minimal exploration was conducted comprising mainly airborne and ground geophysical surveys, regional lake sediment sampling and diamond drilling. Noranda Exploration renewed activity in the area between 1991 and 1994; exploration comprised mainly boulder prospecting, ground geophysics and diamond drilling. No recorded exploration has been conducted in the area since 1995.
The Foster River property contains widespread zinc mineralization in the form of laterally extensive boulder trains, in-situ mineralization (surface bedrock) and geochemically anomalous zinc has been intersected in over 80% of the diamond drill holes drilled.
In the Fable Lake area in-situ zinc mineralization has been traced by diamond drilling for over four (4) kilometers. This mineralization occurs north of Fable Lake; exploration south of Fable Lake is minimal. Mineralization occurs in a laterally extensive sequence of sediments of quartzite and arkose. A mineral assemblage comprising sillimanite-garnet-kspar-biotite is associated intimately with this mineralization and may represent an alteration halo. Zinc mineralization is also found in the form of extensive till boulder trains. The Fable Lake boulder train consists of a large linear concentration of angular sphalerite-galena-bearing quartzite boulders. The mineralized boulders define a fan-shaped area up to 500 meters wide that extends over 3000 meters from the west shore of Foster River to the southwest of Fable Lake. Previous assays from 112 of these boulders returned up to 13.27% Zn and 4.01% Pb, and averaged 6.04% combined Zn-Pb. By comparison the mineralized boulders at Fable Lake are on average larger and contain consistently higher grades of mineralization than the well-documented boulder train derived from the George Lake zinc deposit, 190 km to the northeast (W. Darch, Noranda, 1993). "Drilling has defined the laterally extensive mineralized quartzite horizon from which the sphalerite mineralized boulders are interpreted to have been derived, however, the source of the higher grade sphalerite and galena mineralized boulders has not been delineated suggesting potential along strike" (W. Darch; Noranda, 1993).
At the Sito East showing preliminary diamond drilling defined a small mineralized zone of approximately 50,000 tons grading 4.5% zinc. The mineralization is open in all directions. The best intersection, to date, has been drill hole SE-72-9 which intersected 8.4 meters of 7.7% zinc. Drill hole SE-93-2 intersected a wider zone of about 40 meters grading approximately 2% zinc. Southeast of the Sito East showing the mineralized horizon becomes strongly folded and hosts the Tom zinc showing and a prominent alteration zone. The latter areas have received minimal drilling. The Sito East showing is separated from another mineralized showing, the Sito West, by a regional fold structure. The intervening area represents a favourable target area several kilometers in strike length which is poorly exposed and has not been drill tested.
The Sito South and George zinc showings lie in the central part of the property along the favourable horizon and also have received minimal exploration work.