Magma in Earth's mantle forms deeper than once thought
Magma forms far deeper than geologists previously thought, according to new research results.
Earth Sciences
Jan 24, 2013
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Page 17 - News tagged with earth mantle
Oceanic islands preferred thin crust
(Phys.org)—Debate over how and where oceanic island chains, like Hawaii, form, is at an end according to an academic from The Australian National University.
Earth Sciences
Sep 17, 2012
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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 research by geophysicists ...
Earth Sciences
Aug 20, 2012
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Geological record shows air up there came from below
(Phys.org) -- The influence of the ground beneath us on the air around us could be greater than scientists had previously thought, according to new research that links the long-ago proliferation of oxygen in Earth's atmosphere ...
Earth Sciences
May 23, 2012
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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 have discovered.
Earth Sciences
Apr 23, 2012
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Earth's makeup found to be more diverse than previously thought
(PhysOrg.com) -- For most of modern science, researchers have believed that the Earth was primarily made up of enstatite chondrites, a subclass of meteorites. This was because of the similarity of chromium, nickel and oxygen ...
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 two combine.
Earth Sciences
Nov 21, 2011
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Japanese scientists say giant plumes will prevent new Pangaea
(PhysOrg.com) -- For much of Earth's history, the continents have shifted around, sometimes joining with others, sometimes tearing apart to form new continents. One such shift resulted in what Earth scientists call the Pangaea, ...
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 ...
Earth Sciences
Jul 27, 2011
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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 around the ...
General Physics
Jul 17, 2011
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