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Volcanoes are Guilty of Major Extinction of Permian

04 Mar

Volcanoes are Guilty of Major Extinction of Permian.


Volcanoes are guilty of major extinction of Permian

According to a study by researchers at the University of Calgary, Canada, United extinction of the Permian was the result of a series of major volcanic eruptions, which were first poured into the atmosphere (and therefore in the oceans) amounts of ash. Researchers have discovered rocks of the Canadian Arctic current significant layers of coal ash suitable geological stratification dating from that.”It could be, literally, the last factor triggering extinctions of the Permian, “said Steve Grasby, one of the authors. According to Grasby, this study is the first to bring direct evidence of large-scale volcanic eruptions, the largest prov-en so far, with an imposing burned coal dust emission, which supports model intense greenhouse effect. Volcanoes are the catastrophe were the origin of the band known as the “Siberian Traps”, an area that currently has its center in the Siberian city of Tura, extending up to Yakutsk, Norilsk and Irkutsk, on an area of about 2 million square kilometers, about as is the entire area of Europe.



Read more: http://scienceray.com/earth-sciences/paleontology/volcanoes-are-guilty-of-major-extinction-of-permian/#ixzz1o6ckYQpk

 
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Scris de pe Martie 4, 2012 în Natures, News

 

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