A new picture of the early Earth is emerging, including the surprising…
https://www.college.ucla.edu/wp-content/uploads/2014/08/72068_Michelle_Hopkins_Mark_Harrison_Craig_Manning_photo.jpg25923888Andrew Tranhttps://www.college.ucla.edu/wp-content/uploads/2019/07/Uxd_Blk_College-e1557344896161.pngAndrew Tran2008-11-26 10:04:442014-08-27 10:07:13Plate tectonics started over 4 billion years ago, geochemists report