The Rose property is located in the southern portion of the Middle and Lower Eastmain Greenstone Belt.
The Middle and Lower Eastmain Greenstone Belt (MLEGB) contains more than one hundred mineral showings exhibiting a variety of ages, host rocks, styles (disseminated sulphides, massive sulphides, veins and dykes) and metal suites. The mineral occurrences of the MLEGB have been divided into six (6) types according to Moukhsil et al. (2007):
1) Sulphide facies iron formation.
2) Volcanogenic mineralization.
3) Magma-related mineralization.
4) Orogenic mineralization.
5) Gold-bearing mineralization associated with oxide- or silicate-facies iron formations.
6) Pegmatite-related mineralization.
Types 1 to 3 are associated with an episode of volcanic arc construction (volcanic cycles 1 to 4). Types 4 and 5 are contemporaneous with major deformation events (D1 and D2), whereas Type 6 is associated with post-tectonic intrusions.
Based solely on its geological environment, the Rose property has potential for a number of deposit types. However, based on the known discoveries, only the type recognized in Type 6 (Rare-Element LCT-type Pegmatite) will be discussed herein.
Gabbros, pyroxenites and diorites cut across the property geology. The Pivert-Rose property also hosts pegmatites, occurring as irregular but generally continuous lenses within the biotite schists.
Other rock types, including gneiss, da ........