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Latest Crust Stories

2009-05-11 14:38:51

U.S. physicists say they've determined the crusts of neutron stars are 10 billion times stronger than steel or any other metal alloy found on Earth. The scientists said a neutron star is a star that collapsed when its core ceased nuclear fusion. Exhibiting extreme gravity while rotating as fast as 700 times per second, a teaspoonful of neutron star matter would weight about 100 million tons, the researchers said. Indiana University Professor Charles Horowitz and colleagues conducted...

2009-03-23 10:26:17

U.S. geologists say they've determined that as rocks become hotter in the Earth's crust, they become better insulators but poorer conductors. The University of Missouri scientists said their findings from a study of how well rocks conduct heat at different temperatures provide insights into how magmas are formed and will possibly lead to better models of continental collision and the formation of mountain belts. These results shed important light on a geologic question: how large bodies of...

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2009-03-19 08:28:14

MU researchers found that strain heating can play an important role in crustal melting A University of Missouri study published in Nature this week has found that the Earth's crust melts easier than previously thought. In the study, researchers measured how well rocks conduct heat at different temperatures and found that as rocks get hotter in the Earth's crust, they become better insulators and poorer conductors. This finding provides insight into how magmas are formed and will lead to...

2009-01-28 13:11:02

The Dead Sea lies in a basin structure situated below the sea level. This deep subsidence is a result of a tectonic concurrence between processes in the upper lithosphere that led to subsiding and a compensating upward flow of rocks in the deeper layers of the lithosphere. This is a result presented by A. Petrunin and A. Sobolev from the GFZ - German Research Centre for Geosciences in the current issue of "PHYSICS OF THE EARTH AND PLANETARY INTERIORS" (Vol. 171, S. 387 - 399). In a series of...

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2009-01-22 14:14:03

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, the continents function as a thermal blanket, which leads to an accumulation of heat underneath, and which in turn can cause the break-up of the super-continents. These results of numerical modeling have been published by scientists from the GFZ German Research Centre for...

2009-01-08 14:30:00

Two meteorites found in Antarctica are from an asteroid with an outer layer or crust similar to the Earth's continents, U.S. scientists said Thursday. The finding is the first from an asteroid with an Earthlike crust, the University of Maryland geochemists and other researchers reported in the journal Nature. The discovery also represents the oldest example of rock with this composition ever found, they said. The meteorites point to previously unrecognized diversity of materials formed early...

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2009-01-08 12:35:00

Two rare meteorites found in Antarctica two years ago are from a previously unknown, ancient asteroid with an outer layer or crust similar in composition to the crust of Earth's continents, reports a research team primarily composed of geochemists from the University of Maryland.Published in the January 8 issue of the journal Nature, this is the first ever finding of material from an asteroid with a crust like Earth's. The discovery also represents the oldest example of rock with this...

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2008-12-16 09:30:25

Two giant plumes of hot rock deep within the earth are linked to the plate motions that shape the continents, researchers have found. The two superplumes, one beneath Hawaii and the other beneath Africa, have likely existed for at least 200 million years, explained Wendy Panero, assistant professor of earth sciences at Ohio State University. The giant plumes -- or "superpiles" as Panero calls them -- rise from the bottom of Earth's mantle, just above our planet's core. Each is larger than the...

2008-12-10 13:07:08

A U.S.-led international team of scientists says it has, for the first time, recorded a geological event that is considered key in shaping the Earth's crust. Led by Purdue University Professor Eric Calais, the researchers said they measured ground displacements as two African tectonic plates moved apart and molten rock pushed its way toward the surface during the first so-called dyking event ever recorded within the planet's continental crust. Calais said the event left a wall of magma 6...

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2008-11-27 09:44:55

Analysis of minerals in ancient magmas paints new picture of early Earth A new picture of the early Earth is emerging, including the surprising finding that plate tectonics may have started more than 4 billion years ago "” much earlier than scientists had believed, according to new research by UCLA geochemists reported Nov. 27 in the journal Nature. "We are proposing that there was plate-tectonic activity in the first 500 million years of Earth's history," said geochemistry professor...


Latest Crust Reference Libraries

4_33609f8ebef994f54be143abe0bef9f42
2004-10-19 04:45:40

Earth -- in geology and astronomy, fifth largest planet of the solar system and the only planet definitely known to support life. Gravitational forces have molded the earth, like all celestial bodies, into a spherical shape. However, the earth is not an exact sphere, being slightly flattened at the poles and bulging at the equator. The equatorial diameter is c.7,926 mi (12,760 km) and the polar diameter 7,900 mi (12,720 km); the circumference at the equator is c.24,830 mi (40,000 km)....

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Word of the Day
callithump
  • A somewhat riotous parade, accompanied with the blowing of tin horns, and other discordant noises; also, a burlesque serenade; a charivari.
'Callithump' is a back-formation of 'callithumpian,' a 'fanciful formation' according to the Oxford English Dictionary. However, the English Dialect Dictionary, says 'Gallithumpians' is a Dorset and Devon word from the 1790s that refers to 'a society of radical social reformers' or 'noisy disturbers of elections and meetings.'
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