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Gold/Mining/Energy : Golden Eagle Int. (MYNG) -- Ignore unavailable to you. Want to Upgrade?

To: toma who wrote (11496)	7/29/1998 6:08:00 PM
From: E. Charters	Read Replies (1) \| Respond to of 34075

Gravels in placer areas vary widely and their occurrence is variable with respect to the present topography. In the Yukon you could find perched ancient river beds in the tops of low hills. In BC you could go up Wildhorse Crk. 3 or 4 thousand feet and find good deep gravel beds. In Atlin the valley sediments went to 1500 feet deep. And yes you could find bedrock nearby too. So the probability of finding plenty of unconsolidated sediment to mine is there. The problem is are there pay channels of a sufficient tonnage? In large placers like the Ross in California the decision was made to take the entire valley out as selective mining was less economic totally. But it is tough to determine that this will pay. It would require large scale testing and is frequently imponderable from preliminary tests. The largest mines in the world are fossil placers. South Africa is a case in point. It should be noted that the basal formations are the only good pay formations by experience which necessitates in fossils a selective mining situation usually and in contemporary situations it dictates moving a lot of earth. And boulders are a major problem to solve. The California experience had special machines moving boulders of 100 tons. This would be difficult with today's mobile equipment. Big engineering problem to make a modern placer pay. echarter@vianet.on.ca The Canadian Mining Newsletter EC<:-}