News tagged with mantle

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Exploring water in the deep Earth

(PhysOrg.com) -- Research published today in Nature Geoscience provides new insight into the water cycle of the deep Earth, volcanic activity in the Pacific and the potential catastrophic effects when these ...

Nov 21, 2011
4.5 / 5 (2) 0 | with audio podcast

Cosmic voyager has a layover in St. Louis

Last January two amateur meteorite hunters dropped by Randy Korotev's office at Washington University in St. Louis to show him their latest purchase, a 17-kilogram pallasite meteorite found in 2006 near Conception ...

Nov 10, 2011
5 / 5 (2) 0

Deep recycling in the Earth faster than thought

The recycling of the Earth's crust in volcanoes happens much faster than scientists have previously assumed. Rock of the oceanic crust, which sinks deep into the earth due to the movement of tectonic plates, ...

Aug 10, 2011
4.5 / 5 (4) 18 | with audio podcast

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

What keeps the Earth cooking?

What spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth's magnetic field? Heat. Geologists have used temperature measurements from more than 20,000 boreholes ...

Jul 17, 2011
4.6 / 5 (24) 50 | with audio podcast