News tagged with sedimentary rock

A 3.45-billion-year-old diet

Researchers are providing new information about the 'diet' of microorganisms on the early Earth. By studying 3.45-billion-year-old rocks, the team uncovered clues about ancient microbial metabolism.

dateNov 21, 2012 in Earth Sciences
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Solution to ancient rock puzzle posited

A superplume, or massive episode of volcanic eruptions that related to extensive melting of the Earth's mantle, could explain the puzzling reappearance of major iron formations long after the rise in atmospheric oxygen about ...

dateApr 27, 2012 in Earth Sciences
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China faces hurdles to developing shale gas

Energy-hungry China is tapping its vast shale gas reserves to reduce its reliance on dirty coal and imports, but experts warn its lack of technical expertise and scarce water supplies pose challenges.

dateNov 09, 2011 in Environment
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Poisonous oceans delayed animal evolution

Animals require oxygen, but oxygenated environments were rare on early Earth. New research from University of Southern Denmark shows that poisonous sulfide existed in the oceans 750 million years ago making large areas of ...

dateOct 24, 2011 in Earth Sciences
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