Actually, there are two layers of the Earth that are molten: the mantle and the outer core. Some of the inner core is molten, but most is just too hot.
http://wiki.answers.com/Q/Which_layer_of_the_earth_is_m...
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The upper mantle makes up 10.3% of the Earth's mass, extending a depth of 6-250 miles (10-400 kilometers). A relatively large portion when compared to the other interior layers. This layer is not completely made of solid minerals for scientists speculate that the asthenosphere could be partly liquid molten.
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library.thinkquest.org/28327/html/universe/solar_system...
library.thinkquest.org/28327/html/universe/solar_system/planets/earth/interior/layers_of_earth.html
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; From: University of California - Santa Cruz; Bottom Layer Of Earth's Mantle May Be Partially Molten, According To Seismic Evidence ... The seismic evidence points to a partially molten layer between 5 and 40 kilometers thick in the zone under the South Pacific. Williams and Garnero believe the layer probably encircles...
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www.scienceblog.com/community/older/1996/A/199600529.ht...
www.scienceblog.com/community/older/1996/A/199600529.html
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For the first time, scientists have directly measured the amount of heat flowing from the molten metal of Earth's core into a region at the base of the mantle, a process that helps drive both the movement of tectonic plates at the surface and the ... The mantle is a thick layer of silicate rock that surrounds a dense,
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www.scienceblog.com/cms/seismologists-measure-heat-flow...
www.scienceblog.com/cms/seismologists-measure-heat-flow-from-earths-molten-core-to-lower-mantle-12084.html
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The mantle, the layer of dense rock and metal oxides between the molten part of the core and the surface, has plastic properties (i.e., it is a solid capable of flow under pressure). ... ... Lay et al (3 authors at 2 installations, US) review recent ideas concerning the core- mantle boundary layer and deep Earth dynamics.
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www.geopor.pt/GPnov/cmb.html
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Circulation and convection of electrically conductive molten iron in the Earth's outer core produces the magnetic field. To make the magnetic field, the convection must be relatively rapid (much faster than it is in the plastic mantle), ... This study of one layer maps out an ancient network of sandy stream channels,
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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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Below the crust is the largest layer of the Earth, the 2,900 km thick mantle. Although the mantle does have a thin solid layer at the top, it is composed almost entirely of magma - molten rock inside the earth.
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wwwf.countryday.net/facstf/ms/schniebec/Layers%20of%20E...
wwwf.countryday.net/facstf/ms/schniebec/Layers%20of%20Earth/Layers%20INFO%20Page.htm
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This conductive layer combines with Earth's rotation to create a dynamo effect that maintains a system of electrical currents creating the Earth's magnetic field. ... This layer is not as dense as pure molten iron, which indicates the presence of lighter elements. Scientists suspect that about 10% of the layer is composed...
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www.moorlandschool.co.uk/earth/earths_structure.htm
www.moorlandschool.co.uk/earth/earths_structure.htm
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Which region in the Earth is molten? ... The Moho marks the top of a partially molten layer. ... The partially molten layer beneath the lithosphere is called the ______.
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www.fiu.edu/~srimal/intqz.htm
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