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Scientists claim discovery of Russian meteor fragmen

Senin, 18 Februari 2013 | 0 komentar


MOSCOW - Scientists said Monday they had discovered fragments of the meteor that spectacularly plunged over Russia's Ural Mountains creating a shockwave that injured 1,200 people and damaged thousands of homes.
The giant piece of space rock streaked over the city of Chelyabinsk in central Russia on Friday with the force of 30 of the nuclear bombs dropped on the Japanese city of Hiroshima during World War II.
It exploded a few dozen miles (kilometres) above Earth but its pieces were widely believed to have scattered over large swathes of the industrial region.
Recovery workers scouring a small lake where at least some of the fragments were believed to have fallen were unable to discover anything in their initial search.
But members of the Russian Academy of Sciences that conducted chemical tests on some unusual rocks on Sunday said the pieces had come from outer space.
"We confirm that the particles of a substance found by our expedition near Lake Chebarkul really do have the composition of a meteorite," RIA Novsosti quoted Russian Academy of Sciences member Viktor Grokhovsky as saying late Sunday.
Grokhovsky's Urals Federal University separately posted a statement on its website on Monday that featured a photograph of a person holding a tiny piece of porous black rock between his index finger and thumb.
"This meteorite belongs to the class of regular chondrites," the university statement said.
Grokhovsky said the rock in question was composed in part of metallic iron as well as chrysolite and sulfite.
Its iron content was estimated at 10 per cent.
"Most likely, (the find) will be called Meteorite Chebarkul," the Russian university said.
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