Tuesday, April 2, 2013

Blow against Earth Asteroid Impact

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Illustration of a large asteroid hit the Earth (Photo: Heritagedaily)
WASHINGTON - Researchers from the Cooperative Institute for Research in Environmental Sciences (CIRES) using the model shows that the effects of asteroid impacts could cause a fire storm that occurred on Earth. Firestorm that cause massive forest fires occurred tens of millions of years ago.

Reported Heritagedaily, Monday (04/01/2013), this ancient asteroid as it did in the era of the dinosaurs, in which a space rock as big as the island of Manhattan had landed in Mexico. As a result of the asteroid collision, triggering the emergence of a global firestorm that burned tree branches and bushes.

With the burning of the tree, then destroy ancient dwelling animals and the species on Earth. An estimated 80 percent of species extinction in 66 million years ago.

Why can appear in massive fire? CIRES scientists led by Douglas Robertson explained that the impact of a collision would vaporize a large number of stones. Then, the material is blown high above the Earth's atmosphere.

The material is heat the Earth's upper atmosphere for several hours with a temperature of 2700 degrees Fahrenheit. Warming will eventually raise the temperature could kill every living thing that is not protected under the ground or under the sea.

"Our data indicate that current conditions are consistent with the fires that swept across the planet," said Robertson, CIRES researchers. He said the extreme conditions of temperature raises the average extinction of species up to 100 percent of 80 percent of life on Earth.

Geological evidence suggests that the asteroid collided with Earth approximately 66 million years ago. The impact of such a large space rock creating the Chicxulub crater in Mexico's Yucatan Peninsula with a diameter of more than 110 miles.

In 2010, experts from 33 institutions world reported that the asteroid impact that created the Chicxulub crater is triggered mass extinctions, including wiping out the dinosaur population. (FMH)

http://techno.okezone.com/read/2013/04/01/56/784575/dampak-hantaman-asteroid-terhadap-bumi 

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