Scientists from the University of California at Santa Barbara (University of California, Santa Barbara) set the scene of the asteroid that killed 250 million years ago, almost all life on Earth.
Many people know about the disappearance of the dinosaurs 65 million years ago and that has ruined their asteroid that fell in the area of the Yucatan.
But less is known that 250 million years ago there was a much larger species extinction that affected almost all the plants and animals of the planet.
It was associated with a surge in volcanic activity that created an unfavorable environment.
Geologist Luann Becker (Luann Becker) and her colleagues announced the results of a study showing that the so-called Permian-Triassic disappearance or extinction of the Great guilty asteroid that left Bedout impact crater on the ocean floor off the coast of northwestern Australia.
Geologists have estimated the diameter of space rock that fell 250 million years ago, in the 6.4 — 11.2 kilometers.
The first samples of rocks from the remnants of the crater were raised in 1970, but then no one realized that it was a crater, the remainder of the space visitor.
In 1998, a version expressed geologist John Gorter (John Gorter), but he failed to bring the case to a logical ending.
Only now Becker clearly linked with the date of this crater the Permian-Triassic extinction and has found new evidence of impact, accompanied him to high temperatures and so on.
She believes that the shock version of the death of almost all life on Earth may not drop, but good complement volcanic hypothesis.