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Overview of the Glacier Gulch (Yorke-Hardy) Porphyry Mo-W Deposit
presented by Don MacIntyre, Ph.D., P.Eng. Consulting Geologist, Victoria, B.C.
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Talk Outline regional geology geology of Hudson Bay Mountain
history & geology of the Glacier Gulch deposit review of molybdenum economics additional sources of information
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Glacier Gulch Deposit classified as a porphyry Mo-W deposit
moderate tonnage, high grade approx. 65 million years old deposit not exposed on surface underground mining required economic viability currently being assessed
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Brief History 1957 - staked by William Yorke-Hardy
optioned to Amax optioned to Climax Molybdenum adit collared at 1067 m elevation 164 drill holes completed, mostly underground Climax purchases property from Mr. Yorke-Hardy property sold to Mr. D. Davidson 2003 – property optioned to Fundamental Resources (private BC company) 2004 – Fundamental Resources option property to Patent Enforcement and Royalties Ltd.
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Mineral Claims
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Adit
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Glacier Gulch (Yorke-Hardy) Resource Estimate (Giroux, 2005)
minimum grade required for economic extraction any rock grading less than cut-off not included in resource calculation = waste rock reflects value of rock for commodity or commodities of interest strongly influenced by mining cost e.g. higher cut-off for underground mine versus open pit final cut-off grade can’t be determined until a detailed economic feasibility analysis is completed 0.20% MoS2 cutoff - 82,980,000 tonnes grading 0.295% MoS2 = 293,460,000 lbs Mo 0.30% MoS2 cutoff – 25,450,000 tonnes grading 0.424% MoS2 = 129,360,000 lbs Mo
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Mo deposits – by tonnage
Deposit Location Size Grade (mt) % Mo Adanac B.C Compaccha Peru Kitsault B.C Glacier Gulch B.C Thompson Creek Idaho Red Mountain Yukon Endako B.C Henderson Col Climax Col Quartz Hill Alaska
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Mo deposits – by grade Deposit Location Size Grade (mt) %Mo
Compaccha Peru Endako B.C Quartz Hill Alaska Adanac B.C Red Mountain Yukon Thompson Creek Idaho Kitsault B.C Glacier Gulch B.C Henderson Col Climax Col
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Mo commodity prices
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Additional Sources of Information
Geology & Mineral Occurrences Min. of Energy & Mines MapPlace web site Mineral Tenure Disclosure Statements SEDAR website General Information about Molybdenum IMOA
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Conclusions Glacier Gulch deposit is a moderate size, relatively high grade porphyry Mo-W deposit the deposit does not come to the surface and will have to be mined by underground methods current Mo commodity prices have renewed interest in porphyry Mo deposits a detailed feasibility analysis is required to determine if Glacier Gulch has the potential to be an economically viable mine
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