岩石与岩石圈循环.ppt

The Rock Cycle Thinking about relationships among the major rock groups 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. * Fig. 2.9 MAGMA MAGMA Crystallization IGNEOUS MAGMA IGNEOUS Plutonic Crystallization MAGMA Volcanic IGNEOUS Plutonic Crystallization MAGMA Volcanic IGNEOUS Plutonic Uplift Crystallization Weathering MAGMA Volcanic IGNEOUS Plutonic SEDIMENT Uplift Crystallization Weathering SEDIMENT MAGMA Volcanic IGNEOUS Plutonic SEDIMENT SEDIMENTARY Uplift Crystallization Weathering Erosion Transport Deposition MAGMA Volcanic IGNEOUS Plutonic SEDIMENT SEDIMENTARY Uplift Crystallization Weathering Erosion Transport Deposition MAGMA Volcanic IGNEOUS Plutonic SEDIMENT SEDIMENTARY METAMORPHIC Uplift Burial Increased PT Crystallization Weathering Erosion Transport Deposition MAGMA Volcanic IGNEOUS Plutonic SEDIMENT SEDIMENTARY METAMORPHIC Uplift Burial Increased PT Melting Crystallization Weathering Erosion Transport Deposition Can you see any shortcuts? * *