Dinosaur Extinction Mystery Solved

Posted: June 7, 2010 in Uncategorized

A large asteroid fell to earth became the leading cause of death of the dinosaurs. The statement expressed in a panel of scientists that followed 41 experts from around the world. In that meeting it was agreed that a mass extinction of more than half of all species on this planet, including dinosaurs and several large marine reptiles.

They concluded that the impact occurred about 65 million years ago, had cleared the way for mammals to become the dominant species on earth. Anasteroid of 15 kilometers of the planet is believed to have struck the earth with the power of a billion more powerful than the atomic bomb on Hiroshima.

This resulted in the crater known as Chicxulub crater is buried beneath the Yucatan Peninsula. Asteroid-nearly 15 times the size of a football field, exploded and crashed at high speed when entering into the atmosphere.

In the study it was believed, the incident sparked a series of events that led to a global winter and wipe out most life on earth in a matter of days.

Scientists previously have been arguing about whether so-called Cretaceous-Tertiary extinction (KT) caused by an asteroid or by volcanic activity in India more than 1.5 million years. For the new study, scientists analyzed 20 years ofwork by palaeontologists, geochemists, climate modellers, Geophysicists and sedimentologists.

They concluded that the geological record shows the events that triggered the extinction of marine and land ecosystems destroyed quickly, is the impact of anasteroid. It became the only plausible explanation.

Dr Joanna Morgan, from Imperial College London, said: “We now have greater confidence that an asteroid is the cause of the KT extinction. It is shrouded in the darkness of the earth and cause global winter, killing many species can not adapt to the environment of this hell.”

Another author, Dr. Gareth Collins, also from Imperial College, adding that the explosion of hot rock and gas looks like a giant fireball in the sky, baking the surrounding living things directly without a chance to find shelter.

“Ironically, while this marks the end of Hell 160-million-year dinosaur, turned out to be a big day for the mammals, who has lived in the shadow of dinosaurs before. KT extinction is an important moment in the history of the earth, which eventually paved the way for humans to become dominant species on Earth. ”
Source:
SKYNEWS / Nur Haryanto – www.tempointeraktif.com

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