岩石与岩石圈循环.ppt

文档介绍：The Rock Cycle
Thinking about relationships among the major rock groups
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Major Rock Groups
Igneous
Formed from a melt (molten rock)
Plutonic (intrusive):slow cooling and crystallization
Volcanic (extrusion): quick cooling at the surface
Sedimentary
Formed at the Earth’s surface
Clastic (Mineral Fragments or grains, clays)
Chemical (crystalline chemical/biochemical precipitates)
Metamorphic
Changed by pressure, temperature and fluids.
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Fig.
MAGMA
3
MAGMA
Crystallization
IGNEOUS
4
MAGMA
IGNEOUS
Plutonic
Crystallization
5
MAGMA
Volcanic
IGNEOUS
Plutonic
Crystallization
6
MAGMA
Volcanic
IGNEOUS
Plutonic
Uplift
Crystallization
Weathering
7
MAGMA
Volcanic
IGNEOUS
Plutonic
SEDIMENT
Uplift
Crystallization
Weathering
SEDIMENT
8
MAGMA
Volcanic
IGNEOUS
Plutonic
SEDIMENT
SEDIMENTARY
Uplift
Crystallization
Weathering
Erosion
Transport
Deposition
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MAGMA
Volcanic
IGNEOUS
Plutonic
SEDIMENT
SEDIMENTARY
Uplift
Crystallization
Weathering
Erosion
Transport
Deposition
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