Old rocks, new ideas

02 March 2016 - 08:26
By Shaun Smillie

Once it was thought that Earth's earliest oceans were piping hot but new evidence suggests that they were cold - and this could change our understanding of how life began. The evidence for these cold seas comes from a study of rocks in the Barberton Greenstone Belt, in Mpumalanga.Scientists previously thought that 3.

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