The Shelford Hills showing area is underlain by felsic to mafic subaerial volcanic rocks intruded by stocks of gabbro to monzonite Late Cretaceous Bulkley Plutonic Suite. The area is regionally mapped as being near the boundary of Cretaceous Kasalka Group, consisting of andesitic rock, and the Eocene Ootsa Group, consisting of felsic (rhyolitic) rock.
Large areas of weakly altered (sericite, clay, chlorite or quartz) felsic volcanics with disseminated pyrite mineralization occur along part of a circular structure. The volcanic rocks comprise dacitic to rhyolitic tuffs and tuff breccias, andesitic to dacitic flows and basaltic to andesitic flows. Intrusive rocks comprise a unit of gabbro to diorite, and a unit of diorite-granodiorite-monzonite.
The most common type of mineralization consists of rusty rhyolites and dacites with disseminated pyrite or iron oxides after pyrite. Pyrite is usually associated with siliceous, sericitic or clayey alteration of the felsic volcanics. Minor disseminated sphalerite and galena have also been observed.
Rock analyses are highly anomalous in a few samples for zinc and gold, up to 0.43 per cent and 0.31 gram per tonne gold, respectively (Assessment Report 19107, page 1).
WORK HISTORY
A number of assessment reports exist for the Shelford Hills area. The oldest work was by Kennco in 1969 on their Ford and MH claims (Assessment Reports 2256 and 2314). They report geochemical and magnetic surveys in the area of our MH and She1 groups. IP was later done on their Ford claims, in the area of our She1 10 claim (Assessment Report 4998). Canamax filed soil and silt geochemistry in 1983 over what is our Shel, Hills, and Stan Groups (Assessment Reports 12074). The Stan groups lapsed in June 1989. Evidence of follow-up work in 1984 was found on the ground by our crews in June of 1988. Canamax has not been willing to reveal their results. Riocanex filed geology and rock geochemistry on their Nomann claims (Assessment Reports 12595) just to the west of Noranda's Shel group.
The Ford claim was held by cash in lieu and by physical work. The Man No. 1 claim, within the Ford claim, came open in 1985. This claim was restaked by the original owner, John Shelford of Burns Lake, in 1988.
Between May 1987 and June 1988, Noranda staked and worked in the Shelford Hills area, both on and off Noranda claim groups (Assessment Reports 17804).
In 2011 and 2012, Quartz Mountain Resources Ltd held the considerable Buck and Karma property which contained 6 mineral showings including the: Bob Creek (093L 009), Irk (93L 265), Lewes River (093L 261), John (093L 059) and Shelford Hills (093E 085). In 2011, the company conducted 3906 kilometres of aeromagnetic surveying (Assessment Report 33176). As a result, the company concentrated on 7 areas of interest designated from A to G. Area A contained the Bob Creek showing and Area D the Lewes River showing. In 2012, the company conducted 29.5 line-kilometres of induced polarization in work areas C and D. The company also collected a total of 1489 soil samples, 159 rock samples and 10 silt samples on the Buck and Karma properties. Of 7 areas tested with soil geochemistry, only areas A, C, E and G had elevated results (Assessment Report 34048). The Karma was contained in map sheets 93L/01, 02 and 07 and 93E/15 and 16. Assessment Report 33838 covers the airborne magnetic surveys performed on claims belonging to the Karma property, conducted during the spring of 2012. The Karma work consisted on east-west flight lines spaced at 200 m intervals totaling 3185 line km in a single block. The western central portion of the property is dominated by a pervasive magnetic high in the area known as the Shelford Hills with a distinct northwest fabric (Area A). This area is potentially mafic volcanics of the Kasalka Group.
