News tagged with earths mantle

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

created Oct 15, 2009 | popularity 4.8 / 5 (42) | comments 15

Scientists plan to drill all the way down to the Earth's mantle

(PhysOrg.com) -- In what can only be described as a mammoth undertaking, scientists, led by British co-chiefs, Dr Damon Teagle of the National Oceanography Centre in Southampton, England and Dr Benoit Ildefonse ...

Space & Earth / Earth Sciences

created Mar 25, 2011 | popularity 3.5 / 5 (43) | comments 98 | with audio podcast report

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

created May 26, 2011 | popularity 4.7 / 5 (29) | comments 57 | 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 ...

Physics / General Physics

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

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

created Dec 28, 2009 | popularity 4.4 / 5 (19) | comments 29

Hot topic in earth sciences: The mantle plume model and Siberian 'traps'

(PhysOrg.com) -- A Michigan Technological University researcher may have solved a long-standing mystery in earth science studies. In Siberia there exist stepped, large-scale basaltic formations known as “traps.” ...

Space & Earth / Earth Sciences

created Sep 22, 2010 | popularity 4.5 / 5 (17) | comments 0 | with audio podcast

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

created May 28, 2010 | popularity 4.3 / 5 (15) | comments 2 | with audio podcast

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

created May 18, 2011 | popularity 4.6 / 5 (13) | comments 10 | with audio podcast

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

created Mar 13, 2009 | popularity 5 / 5 (11) | comments 0

Arctic rocks offer new glimpse of primitive Earth

Scientists have discovered a new window into the Earth's violent past. Geochemical evidence from volcanic rocks collected on Baffin Island in the Canadian Arctic suggests that beneath it lies a region of the Earth's mantle ...

Space & Earth / Earth Sciences

created Aug 11, 2010 | popularity 5 / 5 (11) | comments 6 | with audio podcast

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

created Nov 10, 2009 | popularity 4.5 / 5 (12) | comments 0

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

created May 27, 2011 | popularity 4.4 / 5 (11) | comments 3 | with audio podcast report

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

created Jul 12, 2010 | popularity 4.9 / 5 (9) | comments 4 | with audio podcast

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

created Aug 19, 2009 | popularity 4.3 / 5 (10) | comments 3

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

created May 19, 2010 | popularity 4.6 / 5 (9) | comments 3 | with audio podcast