News tagged with mantle rock

Rare melt key to 'Ring of Fire'

(PhysOrg.com) -- Oxford University scientists have discovered the explanation for why the world?s explosive volcanoes are confined to bands only a few tens of kilometres wide, such as those along the Pacific ...

Oct 07, 2010 4.2 / 5 (11) 0 | with audio podcast

Ancient Earth crust stored in deep mantle

Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth's crust. But decisive evidence for this phenomenon has proven elusive. New research from ...

Apr 24, 2013 4.7 / 5 (3) 0 | with audio podcast

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