Geochemistry – Page 5
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Feature
Treasures from the deep
Mining companies are exploring underwater volcanic vents, hoping to extract metals such as gold and copper. Victoria Gill looks at the technical, environmental and political hurdles
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News
Bacteria ruled the world billions of years ago in purple oceans
Evidence backing a controversial sulfur-rich model of the Earth's oceans 1.8 billion years ago has been uncovered in molecular fossils.
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