Ni, Co, Cu, PGM, Au Properties in Ontario Canada

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Message: Geology and Mineralization

Geology and Mineralization

posted on May 18, 2008 06:05AM

The McWatters deposit is hosted by ultramafic rocks that form part of, or

intrude, the Tisdale assemblage that flank the Shaw Dome and form part of the

Abitibi greenstone belt (AGB). The Abitibi greenstone belt is one of the

youngest parts of the Archean Superior Province forming what is considered

one of the largest and best-preserved belts of its kind in the world. To date

five Ni-Cu-(PGE) deposits have been discovered in the Shaw Dome

(Redstone, Hart, McWatters, Langmuir #1, Langmuir #2), and numerous

showings have been identified.

The McWatters deposit differs markedly from the rest of the known deposits in

the Shaw Dome. The ultramafic body hosting the McWatters deposit is

discordant, evidently cutting up through the iron formation that sits

immediately on its north flank, as indicated by recent, more detailed magnetic

surveys conducted by Liberty. The discordant nature of this ultramafic unit

suggests that it is intrusive.

The McWatters mineralized zone can be readily subdivided in two distinct

zones: an upper zone of altered dunitic rocks containing disseminated

sulphides, and a basal, lower zone consisting of massive sulphides. The upper

zone directly overlies the lower zone, which is principally in contact with

wedges of andesitic, footwall volcanic rocks. The two zones combined form

and orebody approximately 150 metres in strike length by 30m to 40m in

width extending down to a depth of approximately 160m. The sulphide

assemblage consists almost exclusively of pyrite and heazlewoodite.

Heazlewoodite (Ni3S2) is one of the most nickel rich sulphide minerals, and is

generally though to be of hydrothermal origin, most often found in dunites and

lherzolites.

**Chapters 6 -8 go into more detailed notes of the geology and mineralization

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