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Monday, March 18, 2013

Gold seams form in an earthquake-powered flash.


http://www.newscientist.com/mobile/article/dn23284-gold-seams-form-in-an-earthquakepowered-flash.html

Geologist John Muntean at the University of Nevada in Reno, says the results are "very credible". The link between earthquakes and gold deposits is not new, says Muntean. "But this paper quantifies the amount of pressure drop," he says, "and it ties it into gold solubility and why that pressure drop could drop out all of the gold in the hydrothermal fluid."
Today, gold veins formed deep underground account for about a third of known gold deposits. Much is mined directly, and some that erodes away is collected from streams. "You can't destroy gold. It just keeps getting recycled," says Henley.

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