Plate tectonics started over 4 billion years ago, geochemists report

(PhysOrg.com) -- A new picture of the early Earth is emerging, including the surprising finding that plate tectonics may have started more than 4 billion years ago — much earlier than scientists had believed, according to new research by UCLA geochemists reported Nov. 27 in the journal Nature.

If you want to include this story in your blog, copy and paste this formatted text:

<p><a href="http://www.physorg.com/news146924511.html">Plate tectonics started over 4 billion years ago, geochemists report</a></p> <p>(PhysOrg.com) -- A new picture of the early Earth is emerging, including the surprising finding that plate tectonics may have started more than 4 billion years ago — much earlier than scientists had believed, according to new research by UCLA geochemists reported Nov. 27 in the journal <i>Nature</i>.</p>