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It is believed to have solidified as a result of pressure-freezing which occurs to most liquids when temperature decreases or pressure increases. ... 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...
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www.solarviews.com/eng/earthint.htm
www.solarviews.com/eng/earthint.htm
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The Earth can be divided into three large sections: the mantle, inner core, and outer core. The inner core is at the center of the earth. The pressure and temperature of the earth increases as one moves closer to the center.
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hypertextbook.com/facts/1999/PhillipChan.shtml
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Outer Mantle: The outer mantle is a lot thinner than the inner mantle. It can be found between 7 miles (10 km) and 190 miles (300 km) below the surface of the earth. ... When the current cools down more, the convection current descends again and goes to the inner earth. There the temperature increases and the current rises again.
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mediatheek.thinkquest.nl/~ll125/en/mantle.htm
mediatheek.thinkquest.nl/~ll125/en/mantle.htm
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Remember that the earth's mantle extends from a few tens of miles below the crust across several thousand miles to the core. The mantle comprises about 85% of the volume of the earth. The core, you'll recall, is only a bit over 4,000 miles ...
http://wiki.answers.com/Q/What_is_the_temperature_of_th...
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Between 100 and 200 kilometers below the Earth's surface, the temperature of the rock is near the melting point; molten rock erupted by some volcanoes originates in this region of the mantle.
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pubs.usgs.gov/gip/interior/
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Below the crust is the mantle, a dense, hot layer of semi-solid rock approximately 2,900 km thick. The mantle, which contains more iron, magnesium, and calcium than the crust, is hotter and denser because temperature and pressure inside the Earth increase with depth.
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pubs.usgs.gov/publications/text/inside.html
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In many Earth models, mid-ocean ridge (MOR) magmatism is attributed to decompression melting of upwelling upper mantle/asthenosphere at normal mantle temperature and melting has been considered to occur in the absence of significant volatiles (C-H-O).
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www.mantleplumes.org/MantleTemp.html
www.mantleplumes.org/MantleTemp.html
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Mantle (geology) - Wikipedia, the free encyclopedia
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The mantle is a part of an astronomical object. The interior of the Earth, similar to the other terrestrial planets, is chemically divided into layers. The mantle is a highly viscous layer between t...
en.wikipedia.org/wiki/Mantle_(geology)
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Taking rock samples at 5,000 meters below the Earth's surface in order to determine the temperature of the mantle, however, would mean attempting the impossible!
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www.cnrs.fr/cw/en/pres/compress/anomalie.Manteau.htm
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