| http://www.w3.org/ns/prov#value | - Scientists need to know very precisely the temperature at various depths in order to better understand large-scale processes such as plate tectonics and volcanic activity, which involves movement of molten rock from the deep interior of the Earth to the surface.This nails down the maximum temperature of the lower-most mantle, a rocky layer extending from a depth of 10 to 30 kilometers to a depth
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