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The Chief Peter property is one of several properties of Minfocus International Inc. in the Thunder Bay area of central North America. It is located ≈130 km west-northwest of the city of Thunder Bay in northwestern Ontario, Canada. The area was identified initially as being of interest due to its relationship to other platinum and palladium-rich mineral occurrences in the area of the Proterozoic Midcontinent Rift system, and its location adjacent to the major Archean Quetico break which trends east-northeasterly and is intimately involved in the geologic environment hosting the rich Current Lake platinum deposit further to the east.
Copper and nickel mineralisation were first discovered at Chief Peter Lake by James W. Lawrence in 1928, and since then numerous companies have increased the knowledge of the geologic environment and extent of mineralisation. The Shebandowan nickel mine, which was operated for many years by INCO, lies only 50 kilometres to the east-southeast. The ore from this mine was characterised by its high platinum group elements (“PGE”) levels relative to copper and nickel levels. Only the more recent exploration activities at Chief Peter Lake included analyses for PGE, which were determined to be present to significant levels and to typically display high platinum to palladium ratios, an encouraging indication of high per-tonne by-product values.
A winter program in February 2013 comprised 750 metres of diamond drilling in six holes on three fences at 100 metre spacing, the first four of which intersected a gabbro body with disseminated chalcopyrite and pyrrhotite. Sample intervals with grades greater than 0.1% copper are shown in the table below.
|Chief Peter Sample Interval Assay Results (>1.0 g/tonne 3E)|
|Hole #||From (m)||To (m)||Core Length (m)||3E( g/t)||Pt( g/t)||Pd( g/t)||Au( g/t)||Cu %||Ni %|
3E = (Pt + Pd + Au); g/t=grams per tonne; All samples were analysed by Activation Laboratories Ltd., Thunder Bay, Ontario
Holes, CP13-01 and CP13-02, were drilled underneath an historic trench which was resampled in 2011 by Minfocus by sawn channel sampling. The resampling of this trench yielded:
|Chief Peter Trench 2011 Sampling (>1.0 g/tonne 3E)|
|Trench No.||Length (m)||3E ( g/t)||Pt ( g/t)||Pd ( g/t)||Au ( g/t)||Cu %||Ni %|
Holes CP13-05 and CP13-06 were drilled parallel to the previous holes, 100 and 140 metres respectively further southwest to follow the presumed gabbro trend based on geophysics and the location of old partially infilled trenches. Hole CP13-05 failed to intersect any gabbro and hole CP13-06 intersected a very short interval right at the top of the hole, which was mineralized. These last two holes may have overshot the gabbro unit. Large high grade boulders continue along the gabbro trend for another 100 metres to the southwest, thus defining an overall length of 500metres with outcrop, drilled or boulder mineralization.
Assessment Reports Submitted to the MNDM:
- Report on Supplementary Assaying of core from Diamond Drilling on Bedivere Lake Area Mineral Claims (September 2013)
- Report on Diamond Drilling on Bedivere Lake Area Mineral Claims (April 2013)
- Report on Soil Geochemistry, Geology and Physical Work on Chief Peter Lake Area Mineral Claims (June 2011)