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Popigai Crater

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Popigai Crater

Post by sujin007 on Wed Nov 21, 2012 7:36 pm

Popigai crater in Siberia, Russia, comes in tied with Manicouagan crater, as the 4th largest verified impact crater on earth.

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Re: Popigai Crater

Post by sujin007 on Wed Nov 21, 2012 7:37 pm

It is just about 100km (62mi) in diameter. The bolide impact happened over 35 million years ago. I really looks so wonderful..

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Re: Popigai Crater

Post by sujin007 on Wed Nov 21, 2012 7:39 pm

Geologists were fascinated by the Popigai crater for decades before any investigatory expeditions where under taken, as the entire area was off limits due to diamond mining in the area.

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Re: Popigai Crater

Post by sujin007 on Wed Nov 21, 2012 7:41 pm

Finally, in 1997, investigations were under way. The bolide was identified as either an 8km (5mi) diameter chondrite asteroid, or a 5km (3.1mi) diameter stony asteroid.

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Re: Popigai Crater

Post by sujin007 on Wed Nov 21, 2012 7:42 pm

It was discovered that the shock pressure from the initial impact instantaneously turned graphite all along the ground, within a 13.6km (8.4mi) diameter of the impact site, into diamonds.



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