Friday, March 25, 2011

How Do Iget The Prom Dress Free On Poptropica

The Earth's mantle remains inaccessible to science for 50 years






This spring marks fifty years since the first scientific project to sample the Earth's mantle, the layer of Earth located between 30 and 60 kilometers beneath the continents, a border that science has yet to achieve.

Coinciding with the anniversary, a group of scientists presented in the latest issue of the journal Nature an ambitious plan to drill the ocean floor to reach the mantle, an aspiration that estimate will be realized within a decade .
In the ocean floor, the crust is only 6 kilometers thick, which facilitates access to the mantle, a layer that extends 2,890 miles into the depths, to reach the Earth's core.

"Getting samples from the mantle would be a treasure comparable to the lunar rocks brought by the Apollo missions," say the scientists behind the project, Damon Teagle, University of Southampton (United Kingdom) and BenoƮt Ildefonso, the University of Montpellier 2 (France).

The researchers hope that the samples will help to advance knowledge about the origin and evolution of the planet but so far, his goal has proven to be even more difficult to travel to the moon.

A greater depth than men have managed to get so far is two miles below the crust, ie, only one third of the way that scientists need to descend.

The idea of \u200b\u200breaching the Earth's mantle first emerged in 1957 when a group of American Geographers Mohole devised the project, an attempt to match the space race with a race to the center of the Earth.

started drilling in 1961 the bark at a point near the coast of Guadalupe Island (Mexico), but could not exceed 183 meters in depth.

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