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Q: During mantle convection, heat from the earth's core causes material in the mantle to expand and move upward. When it reaches the top, it _____.
A: It eventually will break through causing magma to overflow. This over an extensive period of time will create a volcano.
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Asked 10/13/2010 5:05:51 PM
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Mesozoic era
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The Mesozoic Era is an interval of geological time from about 252 to 66 million years ago.
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Updated 2/9/2015 6:43:31 AM
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In geology, petrifaction, petrification or silicification is the process by which organic material is converted into stone by impregnation with silica. It is a rare form of fossilization. Petrified wood is the most well known result of this process, but all organisms from bacteria to vertebrates can be petrified.
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In geology, petrifaction or petrification is the process by which organic material is converted into stone through the replacement of the original material and the filling of the original pore spaces with minerals.
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Catastrophism is the theory that the Earth has been affected in the past by sudden, short-lived, violent events, possibly worldwide in scope.
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