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Scientists find oldest piece of Earth

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Scientists find oldest piece of Earth
Alex K Offline
Ich fühle Luft von anderem Planeten
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#3
RE: Scientists find oldest piece of Earth
February 24, 2014 at 12:28 pm
(February 24, 2014 at 11:43 am)Stimbo Wrote: A piece of zircon found on a sheep ranch in western Australia has been dated as some 4.4 billion years old - almost as old as the 4.5 billion-year-old planet itself.

The tiny crystal was subjected to Uranium-Lead dating to determine its age. Then, to avoid the risk of a misleading date, the findings were confirmed via a seperate, independent dating method "known as atom-probe tomography that was able to identify individual atoms of lead in the crystal and determine their mass, and confirmed that the zircon was indeed 4.4 billion years old. "

http://www.telegraph.co.uk/news/worldnew...Earth.html

Also, scientists confirmed that it was really, really dusty.
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Atheist Forums › Science › Physical Sciences v
Scientists find oldest piece of Earth

Messages In This Thread
Scientists find oldest piece of Earth - by Cyberman - February 24, 2014 at 11:43 am
RE: Scientists find oldest piece of Earth - by Minimalist - February 24, 2014 at 12:23 pm
RE: Scientists find oldest piece of Earth - by Alex K - February 24, 2014 at 12:28 pm
RE: Scientists find oldest piece of Earth - by Jacob(smooth) - February 24, 2014 at 12:29 pm
RE: Scientists find oldest piece of Earth - by max-greece - February 24, 2014 at 12:40 pm
RE: Scientists find oldest piece of Earth - by SteelCurtain - February 24, 2014 at 1:15 pm
RE: Scientists find oldest piece of Earth - by Assimilate - February 24, 2014 at 2:05 pm
RE: Scientists find oldest piece of Earth - by ThePinsir - February 24, 2014 at 2:13 pm
RE: Scientists find oldest piece of Earth - by Jackalope - February 24, 2014 at 2:15 pm
RE: Scientists find oldest piece of Earth - by Cyberman - February 24, 2014 at 2:29 pm
RE: Scientists find oldest piece of Earth - by Jackalope - February 24, 2014 at 2:34 pm
RE: Scientists find oldest piece of Earth - by Cyberman - February 24, 2014 at 2:42 pm
RE: Scientists find oldest piece of Earth - by Bad Writer - February 24, 2014 at 11:07 pm
RE: Scientists find oldest piece of Earth - by *Deidre* - March 2, 2014 at 3:09 pm

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