distinguish between the following thermal and dynamic metamorphism
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Along major fault zones of the Earth pieces of crust are forced to slip past each other in opposite directions. This localizes intense pressures on the rocks adjacent to the faults, but the temperatures are typically not particularly high. This allows for a type of high-pressure/low-temperature metamorphism called DYNAMIC METAMORPHISM.
Often this metamorphism involves a change in texture of the rock with little or no change in mineral content. The resulting texture is that of finely pulverized rock powder called MYLONITE. There may or may not be thin layering of the rock (parallel to the fault zone).