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The Rock Cycle

The Rock Cycle. Basics. Continual process that breaks down, alters, and re-forms rock into one of three types Types of rock can be converted to other types through Earth ’ s continual geological processes. Three Types. Igneous: From cooling magma Intrusive (Plutonic):

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The Rock Cycle

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  1. The Rock Cycle

  2. Basics • Continual process that breaks down, alters, and re-forms rock into one of three types • Types of rock can be converted to other types through Earth’s continual geological processes

  3. Three Types • Igneous: • From cooling magma • Intrusive (Plutonic): • Magma cooled below Earth’s surface (crystallization) • granite • Extrusive (Volcanic): • Cools quickly and ejected (ex: volcano) • basalt

  4. Sedimentary: • Result of sediments derived from erosion/weathering being suppressed and cemented together (surface) • Clastic: rock is physically eroded • Ex: Sandstone • Chemical: dissolved material precipitates from water • Ex: Limestone

  5. Metamorphic: • Formed under extreme heat and pressure • Foliated: heat/pressure force minerals to align and create layers • Ex: Slate • Unfoliated: not layered • Ex: marble

  6. IGNEOUS Crystallization MAGMA

  7. IGNEOUS Plutonic Crystallization MAGMA

  8. Volcanic IGNEOUS Plutonic Crystallization MAGMA

  9. Weathering Volcanic IGNEOUS Plutonic Crystallization Uplift MAGMA

  10. SEDIMENT SEDIMENT Weathering Volcanic IGNEOUS Plutonic Crystallization Uplift MAGMA

  11. Erosion SEDIMENT Weathering Transport Deposition Volcanic IGNEOUS Plutonic SEDIMENTARY Crystallization Uplift MAGMA

  12. Erosion SEDIMENT Weathering Transport Deposition Volcanic IGNEOUS Plutonic SEDIMENTARY Crystallization Uplift MAGMA

  13. Erosion SEDIMENT Weathering Transport Deposition Volcanic IGNEOUS Plutonic SEDIMENTARY Increased P&T METAMORPHIC Crystallization Burial Uplift MAGMA

  14. Erosion SEDIMENT Weathering Transport Deposition Volcanic IGNEOUS Plutonic Can you see any shortcuts? SEDIMENTARY Increased P&T METAMORPHIC Crystallization Melting Burial Uplift MAGMA

  15. Erosion SEDIMENT Weathering Transport Deposition Volcanic IGNEOUS Plutonic SEDIMENTARY Increased P&T METAMORPHIC Crystallization Melting Burial Uplift MAGMA

  16. In Conclusion… • 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 earth’s momentum and… • The energy from the sun • It involves processes on the Earth’s surface as well as the Earth’s interior • It connects the “hydrologic cycle” with the “tectonic cycle”.

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