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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 (10280)	3/20/1999 9:35:00 AM
From: Mike Gold	Read Replies (2) of 25548

Vince, since Los Bronces appears to be the closest major mine to Lipangue-how about some fun facts? 1)Los Bronces was first mined in 1864. At that time, the ore contained 10 to 20% copper! It was mined and transported on muleback intermittently until 1920 when the grade had dropped to 4.5%.(Compare to the .75% at Lipangue!) 2)The mine was acquired by Compania Minera Disputuda de Las Condes S.A. and was purchased by Exxon in 1978. 3)To prove up the resource, 558 holes were drilled between February 1978 to May 1981-121,000 meters worth. 4)Zone of minerlization is about 2 km long 0.7 km wide and consists of 7 seperate Breccia zones. 5)The deposit does appear to have a relationship to Lipangue-from a research paper: "On a global plate tectonic scale it my be significant that the Los Bronces-Rio Blanco system is located at the intersection of the Andes mountain range and the eastward projection of the east-northeast-oriented Juan Fernandez ridge south of the Nazca plate and the Challenger fracture zone, off the coast of central Chile. The structural intersection may have caused a zone of weakness for a fecund magma to rise into the upper part of the crust." Lipangue formed directly above this feature but 40 miles West at the intersection of the Coastal Range instead of the Andes. Further E and slight NE, you have the 7021 meter Aconcagua peak-highest mountain in South America. Needless to say this fracture zone was not a benign feature! G. House has picked up on this relationship as well and could be one of the reasons that he believes such an unusually large minerlized system exists at Lipangue. It is interesting that there is absolutely zero gold at Los Bronces. Interesting geology to say the least! There is more.

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