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Gold/Mining/Energy : Winspear Resources
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To: gg cox who wrote (6151)6/22/1998 7:13:00 PM
From: E. Charters  Read Replies (1) of 26850
 
Trouble is base capital cost and infrastructure
versus applicable mining rate. It is possible
to mine flat veins by a a variety of methods.
It may be possible to strip 20 times the veins'
thickness off the top. But it all has to pay a
minimum mill. Hell I would try it with a basic
5 million dollar panning plant. But every time
I hear the mine plans up there I get bigger figures
than eleven. Beats me. But I think the vein
geometry will give them a negative return.,

What I would do is flat panel stope it laterally
and from ring drill galleries above the sill. Slush
laterally off the top into a scram drift and load it
onto a conveyor to surface. Costs would be about
$25 a ton which is acceptible to this kind of
material. Rate would be 7500 tons a week with
3 scrams running. A Panning-float sortex plant
would cost about 25 million to put in place.
Underground would be about 15 million. Costs per
Carat all up might be anywhere from 20 to 60 bucks
depending on grade.

echarter@vianet.on.ca

The Canadian Mining Newsletter
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