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12 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What happen to rocks that are deeply buried but are not hot enough to melt? |
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Rocks become? |
Metamorphosed |
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Refers to changes to rocks that take place in the earth's interior |
Metamorphism |
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The transition of one rock into another by ______ and/ or _____ unlike those in w/c it formed. |
Temperature and/ or pressure |
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The changes may be... |
New texture, new mineral assemblages, or both |
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Transformation occurs in the... |
Solid state |
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During metamorphism, the rock must remain... |
essentially solid |
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Metamorphism progresses incrementally from... |
Low-grade to high-grade |
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Low-grade rocks formed under relatively ___(1)____ and High-grade rocks to ___(2)____, whereas medium-grade rocks recrystallized at around the ___(3)____ |
(1) cool temperature (2) high temperature (3) middle of the range of metamorphic temperatures |
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Also known as thermal metamorphism. High temperature is the dominent factor |
Contact metamorphism |
Types of metamorphism |
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Contact meta take place too far beneath earth' s surface... |
Less than 10km |
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The zone of contact metamorphism, also known an ___(1)___, is usually quite narrow generally from ___(2)___. |
(1) aureole (2) 1 to 100 meters wide |
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