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Shebandowan Property Summary
Iris Lake - Au
West & East Vanguard Au, Cu, Zn, Ag
The Shebandowan Projects located in Northwestern Ontario, approximately 110 km west of the port city of Thunder Bay, Ontario, Canada and roughly 5 km south-west of the community of Kashabowie.
North Coldstream Mine (between 1806 and 1967): 102 million pounds of Cu, 440,000 oz Ag, and 22,000 oz of Au were produced from a total of 2.7 million tons of ore mined (ProMin Consulting Associates Inc., 2002).
Shebandowan Mine (between 1972 and 1998): total production of 9.29 million tons at 1.75% Ni, 0.88% Cu, 0.063% Co, and 1.83 g/t Pt+Pd (Ministry of Energy, Northern Development and Mines, 2019, Shebandowan Mine).
Shebandowan West Zone: as of 2007, historical mineral resources of 342,000 tonnes Inferred at 1.11% Ni, 0.61% Cu, 0.97 g/t Pd, 0.27 g/t Pt, and 0.18 g/t Au; 2,583,000 tonnes Indicated and Measured at 0.91% Ni, 0.62% Cu, 1.09 g/t Pd, 0.34 g/t Pt, and 0.23 g/t Au (Ministry of Energy, Northern Development and Mines, 2019, Shebandowan West Mine).
East Coldstream Deposit: historical mineral resources of 3,516,700 tonnes Indicated at 0.85 g/t Au; 30,533,000 tonnes Inferred at 0.78 g/t Au (Sierra Madre Developments Inc., 2021).
Moss Lake Deposit: historical mineral resources of 39,795,000 tonnes Indicated at 1.1 g/t Au; 50,364,000 tonnes Inferred at 1.1 g/t Au (Sierra Madre Developments Inc., 2021).
Zone is described as an area of alteration with silica, chlorite, sericite, albite, iron-carbonate, magnetite, potassium and hematite alteration making it a great target to follow on strike to the north.
Has multiple Au intercepts in DDH’s by Newmount Canada that needs follow up work.
A detail ground magnetic and IP survey should be completed in the area of the Newmont drilling on Iris Lake and to the Northeast.
The historical mineral resource on Vanguard West is 152,408 tonnes (150,000 tons) grading 1.3% Cu, 0.69 ppm Au (0.02 oz/t Au) and 8.57 ppm Ag (0.25 oz/t Ag).
Exploration work to date on Vanguard indicates exhalative style mineralization and rock types, with strong iron-carbonate, silica and chlorite alteration typically found within VMS systems. The Vanguard horizon extends over a strike length of approximately 8 kilometres. Drilling to date has concentrated on a small portion of the known mineralized showings (Sierra Madre Developments Inc., 2021).
The Crayfish Creek-Quetico fault systems, coupled with the felsic intrusives, provide favourable prospects for structurally controlled/shear hosted gold vein mineralization. Little work has followed up on the potential for gold shear vein mineralized system.
In 2008, all three diamond drill holes targeting the farthest west IP anomaly near Vanguard West intersected anomalous gold mineralization which warrant further follow up work (Thompson, 2008).