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An asteroid which devastated Australia when it hit 360 million years
ago may have deposited precious metals there.
A land survey has stumbled across the Woodleigh impact crater near
Shark Bay, more than 200 miles north of Perth.
Materials such as magnesium, copper, chromium, nickel and maybe
even gold might be found on the site.
New Scientist reports Robert Lasky, of Western Australia's Department
of Mineral and Petroleum Resources, drilled down into the crater,
which is buried under 600 metres of rock and sand.
A huge chunk of dense granite, which was dragged upwards as the
ground rebounded when the asteroid hit, has been detected.
Instead of being vaporised on impact, it is thought much of the
asteroid may have fused with the granite.
The rock has been dated back to a time of a mass extinction which
saw 85% of all species wiped out.
Geologists had speculated that an asteroid may have been responsible,
but until now there was no known impact that could have triggered
it.
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