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 ...

Aug 20, 2012 4.7 / 5 (3) 0 | with audio podcast

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 ...

Apr 27, 2012 5 / 5 (2) 0

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 ...

Apr 23, 2012 4.5 / 5 (4) 0 | with audio podcast