Notes
Earth Science
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Page 1
Metamorphic Rocks
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Metamorphism:
A very slow process of physical
and chemical change within pre-existing rocks in response to changes in
temperature and pressures beneath the earth’s surface.
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Diagenesis:
A process that usually occurs
below 200°C and pressure below 2000 atmospheres (0.2 GPA),
it is the process of how sedimentary rocks are changed, but occurs at lower
pressures and temperatures than metamorphism.
Page 2
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- Note on Earth Science, created by Nadine Cooper on 29/02/2016.
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- Nadine Cooper
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