Earth Survived the Largest Asteroid Ever to Hit it, Study

As what Australia is known for their love of having the largest of things, surprisingly, the largest asteroid impact zone ever found is also in the place.

A team of scientist led by Dr. Andrew Glikson with the Australian National University’s School of Archeology and Anthropology made the greatest discovery in central Australia that appeared to be large craters that was formed by a meteorite that was believed to have broken into two. The team was drilling in the Warburton Basin in Central Australia when the discovery took place.

Mr. Glikson described the impact zone to cover 400 kilometers that was an outcome of a meteorite which must have broken into two moments as it entered earth and crashed on its surface.  Questions had were asked as to whether the asteroid impact or the underground site must have affected any life on earth during that time. “When we know more about the age of the impact, then we will know whether it correlates with one of the large mass extinctions” he said.

“The two asteroids must each have been over 10 kilometers across — it would have been curtains for many life species on the planet at the time,” he said. “Large impacts like these may have had a far more significant role in the Earth’s evolution than previously thought.”

He said it was hard to determine when the impact had actually occurred since there were no other indications of other meteorite that had hit nearby.

“It’s a mystery — we can’t find an extinction event that matches these collisions. I have a suspicion the impact could be older than 300 million years,” he said. Mr Glikson added that the two impact zones reached up to 30 kilometers thick in that area.

“There are two huge deep domes in the crust, formed by the Earth’s crust rebounding after the huge impacts, and bringing up rock from the mantle below,” he said.

 

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