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Home > News > Tags > mantle
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The molten core of our planet is entirely engulfed in the mantle, the second, thickest layer of magma that supports the crust. The latter is simply the skin of our planet, a layer just a few kilometers thick at its largest point, on which everything we know, continents and oceans included, lie. But there are also sig... |
28 November 2009
07:11 GMT |
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Scientists from the University of Arkansas (UA) have recently released a new report, claiming that the entire planet might have been formed out of meteoritic materials. They base their claims on the fact that the Earth's mantle exhibits the same set of isotopic signatures for magnesium as asteroids do, which wou... |
11 November 2009
05:02 GMT |
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Thanks to the dedication of researchers and experts from the Oregon State University (OSU), we now have the first full map of the electrical conductivity in the Earth's mantle, at a global scale, and in 3D. The find could have some of the most useful applications, such as using disruptions in electrical conducti... |
20 August 2009
06:14 GMT |
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Scientists have taken a new step in better understanding the complex and intricate processes that go on under our planet's crust, when they have recently discovered the first Earth pump, which they say plays a crucial role in the formation of ore deposits, and in creating the best conditions possible for earthqu... |
19 June 2009
07:02 GMT |
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In a mind-boggling piece of engineering achievement, experts at the University of California in Davis (UCD) used a supercomputer to model the early stages of the Earth's crust, back in the days when the planet was just solidifying from an incandescent ball of red-hot lava. The goal of the simulation was to under... |
16 June 2009
21:31 GMT |
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According to scientists, mantle plumes are stretches of enormously hot rocks that can be found in the Earth's mantle. They come from tremendous depths, and some hypothesize that a few of the mantles originate from parts very close to the planet's core. The hot rocks are responsible for a lot of features on ... |
6 April 2009
03:51 GMT |
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Everyone knows that the world's oceans and seas are subjected to tidal forces, which make them go up and down two times per day. But what's a little less known is the fact that the ground also follows a similar pattern, moving under the influence of the Sun and the Moon. Its variation can measure as much as... |
30 January 2009
02:23 GMT |
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As a result of decades of studies, Mars' dichotomous landscape is now common knowledge for scientists. It is known, for instance, that the mountainous southern hemisphere rises some 6 km (3.73 miles) above the smooth northern one, and it's much thicker. This, together with the planet's peculiar magneti... |
17 December 2008
03:33 GMT |
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The molten rock inside the planet's mantle is in continuous motion as heat is convected from the inner regions towards the outer ones, forming the so-called convection cells where the hot material is being pushed upwards and the colder one falls back down in the vicinity of the core. The motion of this material ... |
3 July 2008
09:59 GMT |
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Most of the platinum metal extracted around the world comes from the Bushveld Complex located in South Africa, a region believed to have been created out of ancient magma some two billion years ago. However, why that particular area is so rich in platinum and other related metals remained a topic open for debate for ... |
12 June 2008
05:30 GMT |
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The previous model regarding Earth's interior put things very simply. The Earth is made up of several distinct layers sitting on top of each other. The first and outermost layer is the crust, spanning over 25 kilometers towards the center of the planet. Next comes the mantle, a thick, dense layer of silicate roc... |
5 May 2008
09:48 GMT |
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During the fly-by around Mercury, the Mercury Surface, Space Environment, Geochemistry and Ranging, or MESSENGER, observed what seemed to be scalloped edged cliffs which had been mostly created by the shrinking action of the planet as it cooled in time. The same evidence has been observed by the Mariner 10 orbiter du... |
18 March 2008
09:36 GMT |
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A new study argues that by exerting extreme levels of pressure on insulating crystals, they could be turned into excellent electrical conductors. Manganese oxide, a mineral found in Earth's crust is not an electricity conductor under normal atmospheric pressure and temperature conditions, but, when subjected to ... |
6 February 2008
04:11 GMT |
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The Earth's mantle can stretch up to 2,900 kilometers below the surface, thus the only way to study it is to conduct measurements on the speed of seismic waves which travel through it, in order to determine the rough composition and density. However, a new research conducted relatively recently has shown that ag... |
25 January 2008
08:32 GMT |
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Recently an alternative theory designed to contest the notion that Earth's mantle, the layer between the outer crust and the inner core, might have been solid, suggests that instead it could have consisted of a thick magma 'ocean', slowly flowing beneath the surface.Evidence collected from seismic even... |
6 December 2007
03:47 GMT |
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