岩石与岩石圈循环.ppt

The Rock Cycle Thinking about relationships among the major rock groups 1 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 Earths surface Clastic (Mineral Fragments or grains, clays) Chemical (crystalline chemical/biochemical precipitates) Metamorphic Changed by pressure, temperature and fluids. 2 Fig. 2.9 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 WeatheringSEDIMENT 8 MAGMA Volcanic IGNEOUS Plutonic SEDIMENT SEDIMENTARY Uplift Crystallization Weathering Erosion Transport Deposition 9 MAGMA Volcanic IGNEOUS Plutonic SEDIMENT SEDIMENTARY Uplift Crystallization Weathering Erosion Transport Deposition 10 MAGMA Volcanic IGNEOUS Plutonic SEDIMENT SEDIMENTARY METAMORPHIC Uplift Burial Increased P&T Crystallization Weathering Erosion Transport Deposition 11 MAGMA Volcanic IGNEOUS Plutonic SEDIMENT SEDIMENTARY METAMORPHIC Uplift Burial Increased P&T Melting Crystallization Weathering Erosion Transport Deposition Can you see any shortcuts? 12 MAGMA Volcanic IGNEOUS Plutonic SEDIMENT SEDIMENTARY METAMORPHIC Uplift Burial Increased P&T Melting Crystallization Weathering Erosion Transport Deposition 13 The rock cycle demonstrates the relationships among the three major rock groups It is powered by the interior heat of the Earth As well as earths momentum and The energy from the sun It involves processes on the Earths surface as well as the Earths interior It connects the “hydrologic cycle” with the “tectonic cycle”. In Conclusion 14 15 MAGMA Volcanic IGNEOUS Plutonic SEDIMENT SEDIMENTARY METAMORP