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Gold/Mining/Energy : Precious and Base Metal Investing -- Ignore unavailable to you. Want to Upgrade?

To: jpthoma1 who wrote (129)	10/11/2001 6:12:20 PM
From: geoffb_si	Read Replies (1) \| Respond to of 39344

Hi, JP: It's Geoff, not Goeff! (gggg) A few more comments/questions: You must notice that the El Temereso stock is slightly exposed, which means that when it intruded 50 millions years ago, there were probably thousands of feet of rocks ABOVE it. And within these now eroded rocks, the stock may have given birth to one or many small skarn type mineral deposits (these deposits tend to occur above and on the side of intrusives). If there were small skarn deposits (amongst millions of tonnes of overlying rock), I would expect to see the following: (1) Post-erosion, the ore from these skarns would be barely traceable in the surrounding area, as the ore would intermix with much larger quantities of rock. We would not see ore-grade geochemical samples in the area, as the erosion process would not tend to concentrate the ore in a desert environment; rather, it would disperse the ore. (2) I haven't seen the topography map of the area, but it seems unusual to me that there would be kilometer-length concentrated anomalies with a width of ~100 meters. (3) The concentration of the 5000 tonnes of zinc (minimum estimated) seems like an awful lot of material to have come from skarns, but I'll have to trust your judgement, if you feel that much material is possible. Also, because of dispersion in the erosion hypothesis, 5000 tonnes is probably only 1/10th of the material that eroded from these skarns. Seems like an awful lot of mineralized material to have come from skarns that are 15 kilometers away? I agree with you that I trust Mosher has eliminated human contamination as a possible cause of the anomaly. Thanks, Geoff