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Gold/Mining/Energy : BET YOUR ASSAY - Mining Terms Explained
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To: Walt who wrote (337)2/21/1998 5:42:00 PM
From: Greg W. Taylor  Read Replies (2) of 463
 
Walt:

I've just received a question about a new release I put out last week in reference to our geologist describing in his field notes that the rocks had been "nuked." He's my response. Any comments? Additions? If you do, perhaps you could copy to the YRI thread. Thanks in advance for any help (or clarification / criticism.)

Greg Taylor / Yamana Resources Inc.

Matt was talking about the extreme hydrothermal alteration he was seeing in the rocks. I'd suggest a conversation about this with a geologist (which I'm not.. perhaps Walt elsewhere on SI, could help) would give you greater satisfaction. Basically though, extensive alteration like this means that there was a great deal of igneous activity related usually with superheated water which, in turn, can break down normally insoluble substances (in addition to the silicates). This activity is what carries and concentrates the minerals to create a deposit, often to the top of an intrusion.

Dick Walters said that what he saw at Lejano was the most dramatic hydrothermal alteration he had seen anywhere within the Santa Cruz area, perhaps in the country (I don't recall)and Dick has been operating around Argentina for about a decade.Yamana got started there.

It's just another good sign. The trick is not only finding the heat engine, but in finding the concentration of the mineralization and in it's NOT being supergene enrichment (which we do not feel this is, especially since we have not even reached the sulfide contact yet), as this gives a false reading.

(It seems this stuff is almost as complicated as a high school relationship.)

Hope this helps.

Greg
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