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8_Metamorphism[1]

8_Metamorphism[1] - Increasing Metamorphic Grade General...

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1 Metamorphic Rocks Changes in the Solid State Agents of Metamorphism? Agents of Metamorphism • Heat – from where? • Pressure lith t ti diff ti l – lithostatic or differential • Fluids – from where? All can work over a period of time
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2 Geothermal Gradient Cascades Basin and Range (Nevada)
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3 Iowa Lithostatic Stress Results in Uniform Strain
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4 DIFFERENTIAL COMPRESSIONAL STRESS DIFFERENTIAL COMPRESSIONAL STRESS
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