Manitoba Property Overview

Manitoba Property Overview - Bird River Sill


Mustang holds a large property position in the Bird River Greenstone Belt covering mafic-ultamafic intrusions in the 75 km long prospective belt. An overview of the key deposits in the area is shown in the following graphic. Click on graphic for larger version.

Over the last several years research has been ongoing in the area by the Geological Survey of Canada and the Manitoba Geological Survey. A paper that links the Bird River domain to other prospective areas in the Superior Province (including the Ring of Fire area) can be viewed by clicking here or the first Quick Link on the right of this page.
In addition to the Ni-Cu-PGE deposits in the Bird River there are historical deposits and occurrences of chromite.

Bird River Sill with the Property Locations - click on maps for enlargement





Geological Paper Published by Manitoba Geological Survey

under Report of Activities 2012.

Background : In 2011, the Manitoba Geological Survey (MGS) initiated a multiyear bedrock geological mapping project focusing on the Cat Creek and Cat Lake–Euclid Lake areas in the northern arm of the Bird River greenstone belt (BRGB), within the western Superior Province. This project is conducted in collaboration with the Geological Survey of Canada (GSC) through the Targeted Geoscience Initiative Phase IV (TGI-4) program, and supported by mining companies including Mustang Minerals Corp. The main objectives of the project are to 1) update the regional geological mapping in the Cat Creek and Cat Lake–EuclidLakeareas, 2) address the geological evolution and the geodynamic environment, and 3) assess the metallogeny of magmatic sulphide Ni-Cu-PGE-Cr mineralization within the BRGB.                                                    
Economic Considerations: Conclusions of the report included that the Cat Creek ( Mayville)  area contains several Archean layered mafic–ultramafic intrusions similar to those that host significant Ni-Cu-PGE-Cr mineralization worldwide. Current mapping and lithogeochemical studies suggest that the Mayville intrusion formed from multiple injections of alumina-rich tholeiitic magma derived from high-degree partial melting of a subcontinental lithospheric mantle source; during the emplacement process of each batch magma, assimilation and fractional crystallization may have played an important role in petrogenesis, which may have triggered sulphide saturation, subsequent liquidation and mineralization. Cooling of the intrusion appears to have occurred from north to south, regardless of replenishment by new batches mafic–ultramafic magma(s) into the chamber. The continuity of the heterolithic breccia zone (HBX) in the Mayville intrusion suggests a dynamic system favourable for formation of magmatic sulphide Ni-Cu-PGE-Cr mineralization.

Geological investigations of the Cat Creek area in the Neoarchean Bird River greenstone belt, southeastern Manitoba (part of NTS 52L12): new insights into PGE-Ni-Cu-Cr mineralization.
by X.M. Yang, H.P. Gilbert and M.G. Houlé1

For a full copy of the report Click Here