What goes down, must come up: Geoscientists offer new model for degassing of Earth's mantle

A new analysis of the processes that constantly stir the Earth's deep mantle is helping to explain how the mantle holds onto a portion of ancient noble gases that were trapped during the Earth's formation.

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<p><a href="http://www.physorg.com/news162649740.html">What goes down, must come up: Geoscientists offer new model for degassing of Earth's mantle</a></p> <p>A new analysis of the processes that constantly stir the Earth's deep mantle is helping to explain how the mantle holds onto a portion of ancient noble gases that were trapped during the Earth's formation.</p>