News tagged with earths mantle
Core values set new date for birth of the Earth
(PhysOrg.com) -- The Earth could be up to 70 million years younger than scientists previously thought, a study has found.
Space & Earth / Earth Sciences
Jul 12, 2010 |
4.9 / 5 (9) |
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Scientist's Award Allows Her To Probe the Earth's Mantle
(PhysOrg.com) -- Sandwiched between the liquid iron outer core and the thin rocky crust we live on, the Earth's mantle is more than 1,800 miles thick, and comprises more than three-quarters of the planet's volume and nearly ...
Space & Earth / Earth Sciences
Jun 11, 2010 |
4.8 / 5 (4) |
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Fresh insight into the origins of Planet Earth
For the first time, an international team of researchers has incorporated extensive geochemical data on the formation of Earth into a model - with surprising results: more models can be used for the process ...
Space & Earth / Earth Sciences
Jun 03, 2010 |
4.3 / 5 (6) |
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The Earth's hidden weakness
(PhysOrg.com) -- Three thousand kilometres beneath our feet, the Earth's solid rock gives way to the swirling liquid iron of the outer core.
Space & Earth / Earth Sciences
May 28, 2010 |
4.3 / 5 (15) |
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Earth's mantle flows fast
(PhysOrg.com) -- The Earth's mantle flows far more rapidly around a sinking tectonic plate than previously thought, according to new computer modeling by UC Davis geologists. The findings could change the ...
Space & Earth / Earth Sciences
May 19, 2010 |
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Uninhabited water: Where no microbe has gone before
(PhysOrg.com) -- NASA's 'follow the water' strategy to find life on other planets might need rethinking, according to Australian National University research describing the amount of water on Earth that doesn't ...
Space & Earth / Earth Sciences
May 13, 2010 |
4.4 / 5 (7) |
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Upside-down answer for deep Earth mystery: Clues point to 'density trap' in early mantle
(PhysOrg.com) -- When Earth was young, it exhaled the atmosphere. During a period of intense volcanic activity, lava carried light elements from the planet's molten interior and released them into the sky. However, some light ...
Space & Earth / Earth Sciences
Feb 17, 2010 |
4.8 / 5 (4) |
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As the World Churns
(PhysOrg.com) -- "Terra firma." It's Latin for "solid Earth." Most of the time, at least from our perspective here on the ground, Earth seems to be just that: solid. Yet the Earth beneath our feet is actually ...
Space & Earth / Earth Sciences
Dec 28, 2009 |
4.4 / 5 (19) |
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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 |
5 / 5 (6) |
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Atomic Particles Help Solve Planetary Puzzle
(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 ...
Space & Earth / Earth Sciences
Nov 10, 2009 |
4.5 / 5 (12) |
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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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The greenhouse gas that saved the world
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, ...
Space & Earth / Earth Sciences
Aug 18, 2009 |
3.6 / 5 (9) |
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Carbon dioxide forms polymeric materials under high pressure
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 ...
Mar 25, 2009 |
4.5 / 5 (2) |
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Fledgling mantle plume may be cause of African volcano's unique lava
(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 ...
Space & Earth / Earth Sciences
Mar 13, 2009 |
5 / 5 (11) |
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