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Gold/Mining/Energy : Gold and Silver Juniors, Mid-tiers and Producers -- Ignore unavailable to you. Want to Upgrade?

To: LoneClone who wrote (66929)	8/28/2009 3:08:47 PM
From: E. Charters	1 Recommendation Read Replies (1) \| Respond to of 78417

You are far too jaded and cynical. There is[are] a lot of gold[s] in Peru. There are high mountains from which the gold sloughed off, and into thereby deep fast flowing rivers in valleys where it collected and concentrated. Of course since gold generally never travels far from source, we must believe the source[s] of the gold as multiplied as it may be, would have to be within a 15 mile radius. This is entirely possible if for instance Timmins were found entirely on Mt. peaks in a smallish region, eroded entirely and deposited itself in a nearby broad valley, where it achieved a 1 gram per ton reconcentration from the mass of the entire DP fault between South Porcupine and Timmins proper. This mass would be (5280 X 60,000 feet, X 5000)/12 = 132 billion tons. The original grade at 100 million ounces contained in that overall mass would be 0.0235 grams per ton, or 0.046 grams Au per cubic metre of unconsolidated sediments. The concentration necessary to bring the mass to 1 gram per cubic metre, would be 21 times, to a mass of 6.3 billion tons, or 3.2 billion cubic metres. This would be an area 8 kilometres by 8 km X 40 metres deep. With boulders. Whereas it is all possible, it is devilishly hard to extrapolate a grade over a large area like that with such confidence. It is also unlikely that it would concentrate in a small singular area. I know of one placer with 110 km of beds, 150 metres wide, about 5 metres deep. About 2 to 3 million ounces of gold sit therein. That is real, and likely. Most of the placers I have seen are smaller than that at first blush. It is unlikely a placer would dump into a large area as it would not have the energy needed to concentrate. Placers need steep beds and linearity for washing. I don't know the geometry of this one, but given the nature of placers, you would have to distribute the gold over a long distance in order to get the energy in the river bed to concentrate. This would mean automatically several rivers in parallel with several spread out sources over tens of km to get that much gold. You would need a lot of supporting data, sampling, trenching, drilling, source rocks to give me confidence in that size co-efficient. There are big placers in Russia, with good grade. Some are up to ten million ounces. Data as usual is sparse. Ditto the Yukon. I know of one in the Yukon that is claimed to be 1 gram per cubic yard and 30 million cubic yards. I know of another in South America which is claimed to be 40 million cubic yards and about 1 gram equivalent. They are empirically determined. Sampling, not arm waving. We are talking about 1 million or more ounces per placer. Reasonable. And probably economic at the right scale. Not that expensive to work if the pay streak and overburden are co-operative. Usually not a sinecure with expections here and there. I know of some 2 million ounce placers with feasibilities in Indonesia (Waseco). Their extent is about 103 kilometres. (62 miles). Even given the fact that is is third party arm waving, it begins to lose traction in the Reality and Confidence department until it is backed by hard, cold data. It is easy to extrapolate gold in river beds given a few samples. It starts to look systematic. But grade is hard to pin down unless one does copious cross sectional work. You need testing. So far I see hyperbola, and I don't see much that is hard data. A drill hole here and there is fine. Looking into distant misty hills while your calculator whirs madly is not geological science, as fun as it may be. This appears to be a beer hall deposit. As you get closer to the ground it starts to fade exponentially in grade and feasibility even without the engineering realities impinging their cold and icy breath on fantabulous plans. There is gold in Peru. I will give them that. There was scads that was mined by the Inca in ancient times. About 7 million ounces per year I am told. Of course it took 6,000,000 people to do it. And they mined it from Columbia to Chile, not just in Peru. There are about 100 million ounces down there somewhere. I think however they mislocated it. It is actually on my claims. EC<:-}