Posted by Tom McFay in
Disclosure on 06 22nd, 2010 |
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Ancient Lesson: Did Toxic Seas Delay Evolution of Life on Earth by 1 billion Years?
Using novel geochemical techniques developed by Newcastle University’s Dr Simon Poulton, scientists found that beneath oxygenated surface waters, mid-depth oceanic waters were rich in sulphide about 1.8 billion years ago....