Theory is one of the meteor hit the explanatory how the extinction of dinosaurs on Earth. This was evidenced by a giant crater in the Yucatan Peninsula, which is expected showered celestial 65 million years ago.
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| Researchers believe they have uncovered evidence of a ancient volcanic eruption that led to marine life extinction at 200 thousand years ago. (Picture from: http://www.sciencedaily.com/) |
But the disappearance of the dinosaurs is not the only mass extinction of life on earth. Recent research indicates that the catastrophic events that have occurred 200 thousand years ago. This time, almost all marine life died.
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| Thomas Tobin clears sand from around the fossil of a giant ammonite he found in 2009 on James Ross Island in Antarctica. (Picture from: http://www.dailymail.co.uk/) |
Mass extinction was caused by factors out of the earth, the volcanic eruptions on the Deccan Plateau in India. This massive eruption spewing aerosols that meets the Earth's atmosphere. Vomit fine aerosol particles that are suspended in greenhouse gases and warming-is what killed many marine organisms, especially invertebrates shells on the sea floor. "It seems that these extinctions occurred within a short time," said Thomas S. Tobin, a paleontologist at the University of Washington, Tuesday, September 11, 2012. The research was published in the journal Palaeogeography, Palaeoclimatology, Palaeoecology.
Tobin and his colleagues collected marine fossils from Seymour Island off the Antarctic Peninsula. The island is to deposit thick sediments rich in fossils. They can get a lot of detailed information from the fossils. "The content of fossils at Seymour confirmed that in the period after the eruption of the Deccan, there is a mass extinction of marine animals," he said. Tobin hopes his research on Seymour Island can be proved in other places, such as in the North Pole. *** [NYTIMES | MAHARDIKA SATRIA HADI | KORAN TEMPO 3994]
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