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Sunday, May 19, 2013

Is it true that the Mount Toba eruption trigger the human extinction?

Theory of mass extinction of mankind by the eruption of Mount Toba, which is categorized as a super-volcano, it is not entirely true. From the Recent research from the University of Oxford actually mention the impact of a giant volcanic eruption on the Sumatra island, it does not threaten human civilization.

The crater at Mount Toba in 
Indonesia is itself now the site 
of a large lake. (Picture from:
http://www.bbc.co.uk/)
A series of Toba eruptions at 75 thousand years ago was recorded as the largest super-volcano eruption in the last 2.5 million years. Mount Toba spew take more than 2,800 cubic kilometers of magma, equivalent to a mass of more than 19 million Empire State Buildings in America. Vomit Toba volcanic ash from spreading to the South China Sea to the Arabian Sea. For comparison, the eruption of Krakatoa which occurred in 1883 and is one of the largest eruptions in recorded history just spewed 12 cubic kilometers of magma.

As in one of the genetic studies have revealed that the number of modern humans at the time of the Mount Toba eruption is turned down drastically. Today existing human grown from a few thousand survivors of the disaster. "Researchers in the past suspected the human extinction caused by volcanic winter that caused by the Toba eruption," said Christine Lane, a geologist at the University of Oxford, on Thursday, May 2, 2013.

A super-volcano eruption could wreak havoc with the equivalent hunjaman asteroid. Vomit volcanic ash block out the sunlight and reflect it into space. As a result, the Earth became dark and cold this phenomenon is called "volcanic winter."

This theory is refuted by Lane and her team. Their research suggests that the Toba eruption was not destroy the human civilization. As the proof is the discovery of prehistoric artifacts in India. The artifacts from the period right after the Toba eruption suggests that humans are able to overcome the impact of the eruption. "Toba eruption did not significantly alter the climate," said Lane.

Now about a dozen remaining super-volcano that spread across several regions. Most of the giant volcano that is located on the seabed. *** [EKA | FROM VARIOUS SOURCES | HUFFINGTONPOST | MAHARDIKA SATRIA HADI | KORAN TEMPO 4221]
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