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Oldest chunk of Earth's crust ever found »

Posted by: capn_caveman 2 years, 8 months ago

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The oldest known chunk of Earth's crust has been found in Greenland, and dates back at least 3.8 billion years. The substantial rock is an important find, because it is a type known as ophiolite and provides the best evidence yet that continental drift had been going on for at least a billion years longer than thought.

Read Full Story at environment.newscientist.com »

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capn_caveman

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Comments: 3

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topperjax
March 22, 2007, 5:47 p.m.
This is a cool story, but I have to show my stupidity here. How do these rocks get to the surface? The story didn't explain that, so I am guessing by volcanic eruptions, and being thrown onto the surface.
Am I close?
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STONERS
March 23, 2007, 1:33 a.m.
Awesome story,thanks capn_caveman...