Largest Ever Asteroid Impact Area Believed to Have Been Discovered in Australia

Imaging of the rock in the Warburton Basin revealed deformation consistent with a huge impact
Imaging of the rock in the Warburton Basin revealed deformation consistent with a huge impact

Scientists in Australia have discovered what they say is the largest asteroid impact area ever found.

The 400-kilometre (250-mile) wide area is buried deep in the earth’s crust and consists of two separate impact scars.

The team behind the discovery, from the Australian National University (ANU), said the asteroid broke into two before it hit, with each fragment more than 10km across.

The impact is thought to have occurred at least 300 million years ago.

The surface crater has long since disappeared from central Australia’s Warburton Basin but geophysical modelling below the surface found evidence of two massive impacts, said Dr Andrew Glikson, who led the ANU team.

“It would have been curtains for many life species on the planet at the time,” said Dr Glikson.

But the team, which published its findings in the geology journal Tectonophysics, has not been able to connect the impact to any known extinction.

“It’s a mystery – we can’t find an extinction event that matches these collisions,” said Dr Glikson. “I have a suspicion the impact could be older than 300 million years.”

Click here to read more.

SOURCE: BBC

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s