L07_18_Sept_Petrology

D ra g basalt may form largely by decompression

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Unformatted text preview: make, for example, granite from mantle rock? First the rock has to melt. How can rock be made to melt? Temperature Pressure- Temperature (P- T) phase diagrams and melAng of igneous rocks molten rock solid rock Pressure Pressure- Temperature (P- T) phase diagrams and melAng of igneous rocks Temperature Three basic ways to melt rocks: 1) Increase temperature molten rock solid rock Pressure Pressure- Temperature (P- T) phase diagrams and melAng of igneous rocks Temperature Three basic ways to melt rocks: 1)  Increase temperature 2)  Decrease pressure molten rock solid rock Pressure Pressure- Temperature (P- T) phase diagrams and melAng of igneous rocks Temperature dry melAng curve Three basic ways to melt rocks: 1)  Increase temperature 2)  Decrease pressure...
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This document was uploaded on 03/26/2014 for the course GEC AS.270.103 at Johns Hopkins.

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