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Evidences of giant meteor impact found in Greenland
Scientists at Geological Survey of Denmark and Greenland released this week a study revealing evidences of a three-billion-year-old meteor impact in Greenland. In the report, published at the latest issue of the journal “Earth and Planetary Science Letters”, the researchers analyzed a hypothesis first raised by scientist Adam Garde, who examined the occurrence of nickel and platinum in the Maniitsoq region of Greenland. Knowing that mineral and metal concentrations have been associated with impact structures, Garde realized that an ancient impact could explain many of the area’s geological features. The idea was shared the idea with colleagues, and the team conduced subsequent studies around it.
The researchers suggest that the impact occurred approximately three billion years ago when an object about 30 kilometers in diameter struck the sea, forming an impact crater of about 500 to 600 km in diameter. The researchers note that there is evidence of superheated fluid altering rocks in the area, which would be consistent with a massive impact at sea.
Publicado em: 3/7/2012 21:31:00
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19/5/2013 12:19:04 
