Polar Bear
(Sirius 100%)
The Polar Bear project covers an area of over 190 square kilometres between Higginsville and Norseman, and contains several major shear zones which control gold mineralisation further north including that at Avoca’s Trident deposit. The project also contains the extensions of the Kambalda and Widgiemooltha ultramafic stratigraphy, which hosts significant nickel sulphide mines along strike to the north.
The area is relatively unexplored due to it being largely concealed by the shallow salt lake sediments of Lake Cowan and the sand dunes of the Polar Bear peninsula. Exploration has also been limited during the past twenty years due to a series of complex joint ventures and ownership structures. Sirius’ purchase of the project extinguishes all other previous joint venture agreements and delivers full title to the tenements and all commodities.
Sampling of the Halls Knoll gossan (the oxidised surface expression of sulphides) has yielded extremely high levels of Ni, Cu and platinum group metals (PGM's) indicative of the presence of massive nickel sulphide. Sirius’ initial exploration focus will be to better understand the Halls Knoll prospect with diamond drilling, then define the extent of prospective ultramafic , its basal contact, and any zones of structural disruption and remobilisation of sulphides. Initial drilling has been scheduled for July 2010, lake conditions permitting.

