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Gold/Mining/Energy : Trump's 12 Diamond Picks, Discussions Limited -- Ignore unavailable to you. Want to Upgrade?

To: The Fix who wrote (1369)	10/14/1998 11:59:00 PM
From: bill	Read Replies (1) \| Respond to of 2251

Yes, the characteristic of pipes in the NWT because of glacial action is that the softer kimberlite was gouged out more deeply than the country rock. Result is a shallow lake. However, WSP has done a number of underwater tests that normally would give good, clear readings of the difference in resistivity but as far as I know they came up blank. A geologist I talked to this spring was surprised because normally the difference under those conditions is such that the testing is pretty accurate. There could of course be any number of reasons. It could be that there is no pipe as such, that the fault through which the lava flowed is a break in the rock and is simply a continuation of the dykes. We all hope that isn't the case. There could be various minerals in the country rock that screw up the tests. A number of companies have spent their loot on drilling sites that looked like pipes only to discover they were drilling rock with magnetic properties. Walt could tell us the exact minerals--iron, etc. The source could be an upside down pipe with a wide, deep base and a narrow vent. I've never actually seen one of these but I've heard they exist. I've seen two kinds. The typical volcano and the cinder cone. Unfortunately, the area of the world I was in, although it's got volcanoes allover the place, does not have kimberlite. I agree with you, though, that if there's a pipe, it's under the lake. The question is can they pinpoint it? None of the NWT pipes is very big at surface. Then add in water and sediment and a background problem with resistivity and it's no wonder we've got RT and friends scratching their heads. Frustrating as it is, under these circumstances, they've got no choice but to keep drilling until the drilling tells them where the source lies. If they finally do locate the source, then the dyke system is going to be a major bonus.