News tagged with mantle rock

Reservoirs of ancient lava shaped Earth

Geological history has periodically featured giant lava eruptions that coat large swaths of land or ocean floor with basaltic lava, which hardens into rock formations called flood basalt. New research from Matthew Jackson ...

Jul 27, 2011
4.7 / 5 (6) 0 | with audio podcast

Mount Etna's mystery explained?

Internationally renowned geophysicist Dr Wouter Schellart has developed the first dynamic model to explain the mystery of the largest and most fascinating volcano in Europe, Mount Etna.

Oct 07, 2010
5 / 5 (11) 3 | with audio podcast

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

Arctic rocks offer new glimpse of primitive Earth

Scientists have discovered a new window into the Earth's violent past. Geochemical evidence from volcanic rocks collected on Baffin Island in the Canadian Arctic suggests that beneath it lies a region of the Earth's mantle ...

Aug 11, 2010
3.4 / 5 (26) 6 | with audio podcast

Scientists' work improves odds of finding diamonds

While prospectors and geologists have been successful in finding diamonds through diligent searching, one University of Houston professor and his team's work could help improve the odds by focusing future searches in particular ...

Jul 14, 2010
4.3 / 5 (6) 7 | with audio podcast