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9 Cards in this Set
- Front
- Back
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tectonism
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large-scale movements and deformation of Earth's crust and lithosphere
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compression
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compacts a block of rock and squeezes it into less space (reverse faulting)
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tension (dilation)
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pulls a block of rock apart and increases its length (normal faulting)
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Shear
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smears a block of rock and may eventually tear it apart into two blocks of rock that slide past one another along a strike-slip fault
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melting point
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specific temperature at which crystals of the given material begin to melt
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partial melting
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one part of the rock will melt before another part (Bowen's reaction series)
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geothermal gradient
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increasing temperature with depth
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confining pressure
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one atmosphere, atmospheric pressure
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decompression melting
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if a mineral is already near its melting point, and its confining pressure decreases enough, then it will melt
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