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Showing posts with label designate. Show all posts
Showing posts with label designate. Show all posts

Sunday, March 31, 2013

Study designate that "megavolcanes" swab out half the world's species Agencies


New techniques for dating rocks confirmed that a chain of giant volcanic eruptions 200 million years ago caused the sudden extinction of half the species now inhabiting the Earth.

The result of the research provides far more precise date of when this occurred, for 564 000 201 000 000 000 years ago, in the Triassic extinction event known as Final, or fourth mass extinction, when the eruption of a volcano chain revolutionized the climate by emitting large amounts of carbon dioxide into the atmosphere, according to the report in the journal Science.