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Exploring the Earth's Mantle ... Most of the Earth's mass is in the mantle, which is composed of iron (Fe), magnesium (Mg), aluminum (Al), silicon (Si), and oxygen (O) silicate compounds. At over 1000 degrees C, the mantle is solid but can deform slowly in a plastic manner.
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www.seismo.unr.edu/ftp/pub/louie/class/100/interior.htm...
www.seismo.unr.edu/ftp/pub/louie/class/100/interior.html
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; CORE; The region just below the crust and extending all the way down to the Earth's core is called the mantle. The mantle is relatively flexible so it flows instead of fracturing.
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www.thetech.org/exhibits_events/online/quakes/inside/ma...
www.thetech.org/exhibits_events/online/quakes/inside/mantle.html
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The Earth is the third planet from the sun in our solar system. ... The Gutenberg discontinuity separates the outer core and the mantle. Surface and crust: The Earth's surface is composed mostly of water, basalt and granite. Oceans cover about 70% of Earth's surface. These oceans are up to 3.7 km deep.
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www.enchantedlearning.com/subjects/astronomy/planets/ea...
www.enchantedlearning.com/subjects/astronomy/planets/earth/Inside.shtml
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This animation shows how the hot silicate rock of the Earth's mantle is stirred by heat trying to escape. The heat is generated by the radioactive decay of natural elements like uranium. The hot rock (yellow) rises slowly as the denser cold rock (blue) sinks.
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homepages.see.leeds.ac.uk/~eargah/Conv.html
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Although the core and mantle are about equal in thickness, the core actually forms only 15 percent of the Earth's volume, whereas the mantle occupies 84 percent. The crust makes up the remaining 1 percent.
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pubs.usgs.gov/gip/interior/
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The mantle is the solid region of the earth between the crust and core. The mantle is 2850 km thick. ... Hot spot volcanoes are generated by plumes originating at the core - mantle boundary. The few dozen hot spot locations represent a different form of volcanism.
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www.volcanolive.com/mantle.html
www.volcanolive.com/mantle.html
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A look at six different aspects of the Earth's mantle. ... The rocks and continents of the world belong to the Earth's crust. Beneath that crust is the Earth's mantle.
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geology.about.com/od/mantle/tp/mantleintro.htm
geology.about.com/od/mantle/tp/mantleintro.htm
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Lower mantle: 49.2% of Earth's mass; depth of 650-2,890 kilometers (406 -1,806 miles); The lower mantle contains 72.9% of the mantle-crust mass and is probably composed mainly of silicon, magnesium, and oxygen. ... Upper mantle: 10.3% of Earth's mass; depth of 10-400 kilometers (6 - 250 miles); The upper mantle contains 15...
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www.solarviews.com/eng/earthint.htm
www.solarviews.com/eng/earthint.htm
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The movement of material deep within the Earth may cause large plates made of the crust and upper mantle to move slowly over the Earth’s surface. It is also possible that the movements generate the Earth's magnetic field, called the magnetosphere.
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www.windows.ucar.edu/tour/link=/earth/Interior_Structur...
www.windows.ucar.edu/tour/link=/earth/Interior_Structure/interior.html
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