News tagged with lower mantle

Probing iron chemistry in the deep mantle

Carbonates are a group of minerals that contain the carbonate ion (CO32-) and a metal, such as iron or magnesium. Carbonates are important constituents of marine sediments and are heavily involved in the ...

dateMay 15, 2015 in Earth Sciences
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Earth's lower mantle chemistry breakthrough

Breaking research news from a team of scientists led by Carnegie's Ho-kwang "Dave" Mao reveals that the composition of the Earth's lower mantle may be significantly different than previously thought. These ...

dateMay 22, 2014 in Earth Sciences
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Deep Earth heat surprise

The key to understanding Earth's evolution is to look at how heat is conducted in the deep lower mantle—a region some 400 to 1,800 miles (660 to 2,900 kilometers) below the surface. Researchers at the Carnegie ...

dateAug 09, 2013 in Earth Sciences
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A new kind of metal in the deep Earth

(PhysOrg.com) -- The crushing pressures and intense temperatures in Earth's deep interior squeeze atoms and electrons so closely together that they interact very differently. With depth materials change. New ...

dateDec 19, 2011 in Condensed Matter
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Cosmic voyager has a layover in St. Louis

Last January two amateur meteorite hunters dropped by Randy Korotev's office at Washington University in St. Louis to show him their latest purchase, a 17-kilogram pallasite meteorite found in 2006 near Conception ...

dateNov 10, 2011 in Space Exploration
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