News tagged with mantle
Atomic Particles Help Solve Planetary Puzzle
Space & Earth / Earth Sciences
Nov 10, 2009 |
4.5 / 5 (12) |
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(PhysOrg.com) -- A University of Arkansas professor and his colleagues have shown that the Earth's mantle contains the same isotopic signatures from magnesium as meteorites do, suggesting that the planet formed ...
Giant impact near India -- not Mexico -- may have doomed dinosaurs
Space & Earth / Earth Sciences
Oct 15, 2009 |
4.8 / 5 (41) |
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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 ...
Water in Earth's mantle may be associated with subduction
Space & Earth / Earth Sciences
Aug 19, 2009 |
4.3 / 5 (10) |
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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 ...
The greenhouse gas that saved the world
Space & Earth / Earth Sciences
Aug 18, 2009 |
3.6 / 5 (9) |
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When Planet Earth was just cooling down from its fiery creation, the sun was faint and young. So faint that it should not have been able to keep the oceans of earth from freezing. But fortunately for the creation of life, ...
Natural deep earth pump fuels earthquakes
Space & Earth / Earth Sciences
Jun 18, 2009 |
3.8 / 5 (8) |
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For the first time scientists have discovered the presence of a natural deep earth pump that is a crucial element in the formation of ore deposits and earthquakes.
What goes down, must come up: Geoscientists offer new model for degassing of Earth's mantle
Space & Earth / Earth Sciences
May 27, 2009 |
3.8 / 5 (5) |
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A new analysis of the processes that constantly stir the Earth's deep mantle is helping to explain how the mantle holds onto a portion of ancient noble gases that were trapped during the Earth's formation.
A Hidden Drip, Drip, Drip Beneath Earth's Surface
Space & Earth / Earth Sciences
May 26, 2009 |
4.8 / 5 (13) |
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(PhysOrg.com) -- There are very few places in the world where dynamic activity taking place beneath Earth's surface goes undetected.
Alchemy in Tanzania? Gas Becomes Solid at Surface of Oldoinyo Lengai Volcano
Space & Earth / Earth Sciences
May 06, 2009 |
4.1 / 5 (8) |
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(PhysOrg.com) -- Science has unearthed the secret to what might have been alchemy at Oldoinyo Lengai volcano in Tanzania.
Carbon dioxide forms polymeric materials under high pressure
Mar 25, 2009 |
4.5 / 5 (2) |
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Carbon dioxide is a molecular gas at ambient conditions and an important consitituent of the Earth’s atmosphere. It is also a likely component in the Earth’s mantle, and it plays an important role in the life ...
Fledgling mantle plume may be cause of African volcano's unique lava
Space & Earth / Earth Sciences
Mar 13, 2009 |
5 / 5 (10) |
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(PhysOrg.com) -- Nyiragongo, an active African volcano, possesses lava unlike any other in the world, which may point toward its source being a new mantle plume says a University of Rochester geochemist. The ...
Riding -- and reading -- the Earth tide
Space & Earth / Earth Sciences
Jan 29, 2009 |
4.2 / 5 (5) |
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(PhysOrg.com) -- Once a day, Miaki Ishii rides the Earth tide, rising slowly — along with her desk, chair, and entire office — 20 to 30 centimeters before sinking back again.
The continents as a heat blanket
Space & Earth / Earth Sciences
Jan 22, 2009 |
3 / 5 (4) |
3
Drifting of the large tectonic plates and the superimposed continents is not only powered by the heat-driven convection processes in the Earth's mantle, but rather retroacts on this internal driving processes. In doing so, ...
Ancient Magma 'Superpiles' May Have Shaped The Continents
Space & Earth / Earth Sciences
Dec 15, 2008 |
4.4 / 5 (20) |
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(PhysOrg.com) -- Two giant plumes of hot rock deep within the earth are linked to the plate motions that shape the continents, researchers have found.
Intense chemotherapy wards off recurrence in half of mantle cell lymphoma patients after seven years
Dec 09, 2008 |
not rated yet |
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More than half of younger mantle cell lymphoma patients who received an intensive regimen of chemotherapy as frontline treatment remain in remission seven years later, researchers at The University of Texas M. D. Anderson ...
Why is the Earth's mantle conductive?
Space & Earth / Earth Sciences
Dec 04, 2008 |
4.6 / 5 (24) |
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(PhysOrg.com) -- Researchers from INSU-CNRS (France), working with chemists at a CNRS research unit, have explained that the high conductivity of the Earth's upper mantle is due to molten carbonates. They ...
