Geochemistry – Page 5
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ResearchChemistry calculations reveal Earth's inner core
Higher levels of oxygen suggest early Earth may have been hotter than some model predict
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ResearchDinosaur mass extinction may have been triggered by acid rain
Asteroid impact could have produced enough sulfur trioxide to dramatically lower ocean pH
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FeatureExtreme extraction
The increasing price of precious metals has prompted mineral prospectors to consider unusual places. Jon Evans looks into the future of mining
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BusinessLow salt diet to flush out oil
Better understanding of oil–clay chemistry could increase the world’s recoverable oil by billions of barrels
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CareersResourcing the resource boom
Kelly Scientific Resources has its work cut out supplying scientists for Australia’s expanding mining and environmental science sectors, learns James Mitchell Crow
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ResearchFluorine finally found in nature
Mystery of nasty niff from ‘fetid fluorite’ minerals is solved - it’s all down to the fluorine it releases
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News
Fertiliser use increases atmospheric N2O levels
Over the past 50 years fertiliser use has contributed to the rise in atmospheric nitrous oxide levels
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Feature
High hopes for shale
Shale gas has given the US petrochemicals industry a much needed boost – will it do the same for the rest of the world?
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FeatureTreasures 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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NewsBacteria 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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