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Birth of the Appalachians Triggered Mass Extinction

Posted October 16, 2009 8:06 AM

From New Scientist - Online News:

The birth of the US Appalachian mountain chain may have been behind a major ice age and a mass extinction. The extinction event at the end of the Ordovician 450 million years ago was the second largest Earth has ever seen. It has long been believed that an ice age caused it, but no one knew what triggered the freeze

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CUTiger
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#1

Re: Birth of the Appalachians Triggered Mass Extinction

10/16/2009 8:29 AM

All I know is, I love these mountains
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Sharkles
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Re: Birth of the Appalachians Triggered Mass Extinction

10/16/2009 8:54 AM

Gorgeous photos!

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CUTiger
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Re: Birth of the Appalachians Triggered Mass Extinction

10/16/2009 11:36 AM

Thanks! one more....
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