Australia's ancient oceans: toxic and purple

Ancient oceans in Australia’s north were toxic seas of sulfur, supporting coloured bacteria that made the seas appear purple and unlike anything we know of in the Earth’s history, according to new ANU research.

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<p><a href="http://www.physorg.com/news7038.html">Australia's ancient oceans: toxic and purple</a></p> <p>Ancient oceans in Australia’s north were toxic seas of sulfur, supporting coloured bacteria that made the seas appear purple and unlike anything we know of in the Earth’s history, according to new ANU research. </p>