News tagged with mantle

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Why do the Caribbean Islands arc?

(Phys.org) -- The Caribbean islands have been pushed east over the last 50 million years, driven by the movement of the Earth's viscous mantle against the more rooted South American continent, reveals new ...

dateAug 20, 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 ...

dateApr 27, 2012 in Earth Sciences
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Looking inside the Earth

(Phys.org) -- Defects found in rocks below the Earth’s surface have a major impact on the transmission of seismic waves, such as those caused by earthquakes, researchers at The Australian National University ...

dateApr 23, 2012 in Earth Sciences
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