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Massive Impact Crater Identified in Australia

posted: 03/24/15
by: Discovery Channel
asteroid impact
NASA

From Discovery News

Two vast underground domes are buried under central Australia that researchers have realized are the scars of the biggest and most powerful asteroid impact yet found on Earth. They appear to have been caused by a massive asteroid that broke in two, serving our planet and all life on it with a devastatingly powerful double-punch.

Embedded in the crust 30 kilometers (19 miles) deep, in rock that is 300-600 million years old, the double impact crater has long gone, buried by geological processes, but its imprint in Earth's crust remains. It covers a vast impact zone some 400 kilometers (250 miles) wide in the Warburton Basin in Central Australia.

"The two asteroids must each have been over 10 kilometers (6.2 miles) across -- it would have been curtains for many life species on the planet at the time," said Andrew Glikson from the Australian National University's School of Archaeology and Anthropology.

Click here for the full story from Discovery News

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