360° Coverage : Giant asteroid's hit changed Earth forever

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Giant asteroid's hit changed Earth forever
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Giant asteroid's hit changed Earth forever

Feb 21 2013, 6:34am CST | by

London, Feb 21 (IANS) A gigantic asteroid that slammed into Australia more than 300 million years ago changed the face of the Earth forever, says a British media report.

London, Feb 21 — A gigantic asteroid that slammed into Australia more than 300 million years ago changed the face of the Earth forever, says a British media report. The nearly 10 km wide asteroid...

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1 year ago

Giant asteroid's hit changed Earth forever

Feb 21 2013, 6:34am CST | by

London, Feb 21 (IANS) A gigantic asteroid that slammed into Australia more than 300 million years ago changed the face of the Earth forever, says a British media report.

London, Feb 21 — A gigantic asteroid that slammed into Australia more than 300 million years ago changed the face of the Earth forever, says a British media report.

The nearly 10 km wide asteroid left an impact zone nearly 200 km wide, the third largest such site on the planet, possibly triggering mass extinctions worldwide.

"The dust and greenhouse gases released from the crater, the seismic shock and the initial fireball would have incinerated large parts of the Earth. The greenhouse gases would stay in the atmosphere for tens of thousands of years," said Andrew Glikson, visiting fellow at the Australian National University.

Evidence of the ancient cataclysm was only discovered after another researcher alerted Glikson to unusual mineral deposits in the East Warburton Basin in South Australia.

As the ages have passed, the mammoth impact zone has been buried beneath nearly 2.5 miles of earth, the Daily Mail reports.

To identify it, Glikson and his colleagues analysed quartz grains drawn from the site and studied underground seismic and magnetic anomalies.

However, he added, the impact happened well before the time of the dinosaurs. "It's significant because it's so large. It's the third largest impact terrain anywhere on the Earth found to date," he said.

IANS

Source: IANS

 
Update
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3 days ago

BBC’s fact-tastic data-dicing tool puts your tiny life in perspective

Oct 21 2014 1:25pm CDT | Source: Cult of Mac

Wondering how many solar eclipses there have been since the day you were born? How about when your next birthday on Mercury is? Perhaps you want to know how much Earth’s population has changed since your very special day. You… ...
Source: Cult of Mac   Full article at: Cult of Mac
 

 
Update
2

6 weeks ago

Star Walk Kids is a fun constellation browser for children

Sep 10 2014 3:30pm CDT | Source: TUAW

Star Walk Kids is a version of the astronomy apps Star Walk and Star Walk 2 - the latter of which TUAW's own Mel Martin called "impressively good looking" - designed specifically for educating kids about the wonders of the stars and the univers ...
Source: TUAW   Full article at: TUAW
 

 

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<a href="/latest_stories/all/all/8" rel="author">Luigi Lugmayr</a>
Luigi is the founding Chief Editor of I4U News and brings over 15 years experience in the technology field to the ever evolving and exciting world of gadgets. He started I4U News back in 2000 and evolved it into vibrant technology magazine.
Luigi can be contacted directly at ml@i4u.com. Luigi posts regularly on LuigiMe.com about his experience running I4U.

 

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