Medinah Mining Inc. (MDHM) Message Board

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Gold/Mining/Energy : Medinah Mining Inc. (MDHM)

MDMN 0.000001000

-99.0%

Jun 3 1:07 PM EST

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To: Handshake™ who wrote (5483)	8/17/1998 12:48:00 PM
From: Mike Gold	of 25548

As far as the resistivity testing goes: For Gold-Copper prophhyry deposits: "Ore zones, particularly those with higher Au content, can be associated with magnetite-rich rocks and are indicated by magnetic surveys. Alternatively the more intensely hydrothermally altered rocks, particularly those with quartz-pyrite-sericite(phyllic) alternation produce magnetic and resistivity lows. Pyritic haloes surrounding cupriferous rocks respond well to induced polarization(I.P.) surveys but in sluphide-poor systems the ore itself provides the only significant IP response. Porphyry deposits are marked by large-scale, zoned metal and alteration assemblages. Ore zones can form within certain intrusive phases and breccias or are present as vertical 'shells' or minieralized cupolas around particular intrusive bodies. "

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