SOUTHERNERA (t.SUF) Message Board

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Gold/Mining/Energy : SOUTHERNERA (t.SUF)

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To: VAUGHN who wrote (3296)	5/11/1999 8:02:00 PM
From: Gord Bolton	Read Replies (2) of 7235

Hello Vaughn Excellent post. Don't we all love a mystery-well not as much as a huge economic discovery-but it is fascinating. When one really thinks about it, 25 meter diameter boulders are nothing short of huge. My bet is that they did not get moved far from their source. Not that it is not possible-just that it is more likely that they didn't move far. It is possible and there is evidence to suggest that very large boulders were picked up and moved hundreds of miles. What happened much more often is that boulders were pushed along, absorbed into the bottom of the glacier and ground into gravel or dust through friction with other boulders and granite terrain. The fact that a large group of these boulders is found nestled together on the shore of Munn Lake would make me suspect that their source is very close by and that they were simply loosened up by the most recent glacier. I believe that SUF has already indicated that the sill material is very similiar in make up to the boulders. The fact that they have encountered 14 meter intersections through limited drilling would make me think that wider intersections are entirely possible. It would be interesting to know the depth at which the intersections took place and of course more info about the surrounding geology. We should keep in mind that it took Winspear and partners years to realize that a rich dyke-sill-cone sheet is much better than a sandpaper pipe. Most pipes in the NWT are of very modest size, whereas a 14 meter thick sill could provide huge tonnage over a large area. 14 meters is definitely a mineable width.

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