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The similarity and contrast between the freezing of magma and the freezing of water.
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Answer to Problem 1RQ
Magma and water crystallizes when the suitable temperature is attained. But magma can crystallize at various temperatures as different compounds, where as water crystallizes at a particular temperature without any compositional change. Hence, they differ.
Explanation of Solution
Magma is the molten rock that is present deep inside the surface. When it reaches the surface it is called as lava. Magma, when cooled at certain pressure and temperature, it crystallizes and forms rocks of different compositions at different depths.
Water when kept at
As a result of various compounds present, all the crystals formed are not of same composition. Different crystals are formed at different temperatures. Thus, the early formed rocks are maffic whereas the later formed rocks are felsic. This process is known as Fractional Crystallization.
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Chapter 4 Solutions
Essentials of Geology (Fifth Edition)
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