News tagged with earths mantle
Research suggests more silicon in Earth's lower mantle than thought
For many years geophysicists have argued over the perplexing mystery regarding the amount of silicon in the Earth's mantle that is thought to have arrived there via impacts with asteroids.
Space & Earth / Earth Sciences
May 04, 2012 |
3.6 / 5 (8) |
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Diamonds show depth extent of Earth's carbon cycle
Scientists have speculated for some time that the Earth's carbon cycle extends deep into the planet's interior, but until now there has been no direct evidence. The mantle–Earth's thickest layer –is ...
Space & Earth / Earth Sciences
Sep 15, 2011 |
4.5 / 5 (6) |
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New explanation for Hawaiian hot spot
(PhysOrg.com) -- Scientists in the US have suggested that volcanic activity in Hawaii could be fed by a giant hot rock pool 1,000 kilometers west of the islands and in the Earth’s mantle, rather than ...
Space & Earth / Earth Sciences
May 27, 2011 |
4.4 / 5 (11) |
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Parts of moon interior contains as much water as Earth's upper mantle
Parts of the moon's interior contains as much water as the upper mantle of the Earth - 100 times more of the precious liquid than measured before – research from Case Western Reserve University, Carnegie ...
Space & Earth / Space Exploration
May 26, 2011 |
4.7 / 5 (29) |
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Earth's inner core is melting... and freezing
The inner core of the Earth is simultaneously melting and freezing due to circulation of heat in the overlying rocky mantle, according to new research from the University of Leeds, UC San Diego and the Indian ...
Space & Earth / Earth Sciences
May 18, 2011 |
4.6 / 5 (13) |
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Turbulence around heat transport
(PhysOrg.com) -- Heat transport in the earth's mantle and in the atmosphere is probably not as effective as previously thought.
Dec 03, 2009 |
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Giant impact near India -- not Mexico -- may have doomed dinosaurs
A mysterious basin off the coast of India could be the largest, multi-ringed impact crater the world has ever seen. And if a new study is right, it may have been responsible for killing the dinosaurs off 65 ...
Space & Earth / Earth Sciences
Oct 15, 2009 |
4.8 / 5 (42) |
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Water in Earth's mantle may be associated with subduction
A team of scientists from Oregon State University has created the first global three-dimensional map of electrical conductivity in the Earth's mantle and their model suggests that that enhanced conductivity ...
Space & Earth / Earth Sciences
Aug 19, 2009 |
4.3 / 5 (10) |
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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 ...
Space & Earth / Earth Sciences
May 23, 2012 |
4.7 / 5 (7) |
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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 ...
Space & Earth / Earth Sciences
Apr 23, 2012 |
4.5 / 5 (4) |
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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, ...
Space & Earth / Earth Sciences
Mar 02, 2012 |
4 / 5 (3) |
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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 ...
Space & Earth / Earth Sciences
Nov 21, 2011 |
4.5 / 5 (2) |
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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 ...
Space & Earth / Earth Sciences
Sep 20, 2011 |
4.2 / 5 (6) |
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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 ...
Space & Earth / Earth Sciences
Jul 27, 2011 |
4.7 / 5 (6) |
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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 ...
Jul 17, 2011 |
4.6 / 5 (24) |
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