Tuesday, December 14, 2010

Asteroid impact wiped out the dinosaurs in it?.

New Study of history that many scientists believe in biological evolution in the history of 6500 years ago, there have been such a huge disaster, leading to the extinction of the dinosaurs, the disaster is considered to be a huge extraterrestrial impact of the Gulf of Mexico, forming a .A deep as the Grand Canyon of Colorado giant pit, and they make billions of tons of broken rock splashed on the atmosphere, these pieces form a layer of the atmosphere enveloped the entire planet. .The Cretaceous period is at the turn of the early and late Triassic period, academic called kt period. .But scientists have a large impact of this on earth can bring so much of some doubt. .kt period was marked evolution of the earth in the history of one of the largest extinction phase. .This stage caused the Earth to 70% to 75% of extinction, including dinosaurs. .So what is the impact generated so much the consequences? .Recently, the United States, Mexico and Europe, some scientists are trying to detect a large impact had occurred with the rock to find out. .Earlier this year, these rocks from the northern shore of the Yucatan Peninsula of Mexico fishing village of extracted Pu Ertuo, extraterrestrial hit the ground here is a huge pit, it had been buried in about one kilometer under the thick sedimentary rock. .Scientists will drill more deep underground every day, remove rock samples, and finally to remove the rock was until the big crash. .This is an asteroid hit the rock, scientists estimate that there were about 20 million square kilometers of land was immediately gasification, or anti-splashed sky. .Detection of these rocks will help scientists determine the scattered material on earth how much harm. .These include what kinds of rocks? .Which may be limestone. .Limestone is submerged by the sea shells of marine organisms when the hardened formation. .If the asteroid collision limestone, collision avoidance is the heat generated by it will become carbon dioxide gas, this gas can warm the earth's surface. .Large impact a large number dioxide </ p>.

No comments:

Post a Comment