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Rocks… what are the different types and how are they formed?

Rocks… what are the different types and how are they formed?. Igneous rocks form from molten rock cooling and hardening on OR below the surface of the Earth. EXTRUSIVE igneous rocks are from cooled lava on the surface of the earth.

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Rocks… what are the different types and how are they formed?

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  1. Rocks… what are the different types and how are they formed?

  2. Igneous rocks form from molten rock cooling and hardening on OR below the surface of the Earth. EXTRUSIVE igneous rocks are from cooled lava on the surface of the earth. INTRUSIVE igneous rocks form from magma cooling slowing inside the earth.

  3. These intrusive igneous rocks have larger crystals because they cooled very slowly inside the earth.

  4. These extrusive igneous rocks cooled so quickly on the earth's surface they have very small or no crystals at all.

  5. Rocks that form when particles of rock or sediments settle and harden together. 1 How are they formed? 2

  6. Metamorphic Rocks

  7. Rocks that are formed when existing rocks are heated and squeezed with extreme pressure

  8. The Rock Cycle Think about relationships among the major rock groups and illustrate the Rock Cycle Diagram in your journal as we go through the PPT.

  9. Fig. 2.9 MAGMA

  10. IGNEOUS ROCK Cools & Crystallizes MAGMA

  11. Cools slowly inside the earth IGNEOUS ROCK Intrusive Crystallization MAGMA

  12. Cools quickly on the earth’s surface Extrusive IGNEOUS ROCK Intrusive Crystallization MAGMA

  13. Weathering & Erosion Extrusive IGNEOUS ROCK Intrusive Crystallization MAGMA

  14. Weathering& Erosion SEDIMENT SEDIMENTS Extrusive IGNEOUS ROCK Intrusive Crystallization MAGMA

  15. Weathering& Erosion SEDIMENT Transport Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Crystallization MAGMA

  16. Weathering & Erosion SEDIMENT Transport Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Crystallization MAGMA

  17. Weathering & Erosion SEDIMENT Transport Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Burial Heat & Pressure METAMORPHIC Crystallization MAGMA

  18. Weathering & Erosion SEDIMENT Transport Deposition Extrusive IGNEOUS ROCK Intrusive Can you see any shortcuts? SEDIMENTARY Burial Heat & Pressure METAMORPHIC Crystallization Melting MAGMA

  19. Weathering & Erosion SEDIMENT Transport Weather /Erode into sediments - Sedimentary Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Burial Heat & Pressure T METAMORPHIC Crystallization Melting MAGMA

  20. Weathering & Erosion SEDIMENT Transport Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Heat & Pressure - Metamorphic Burial Heat & Pressure T METAMORPHIC Crystallization Melting MAGMA

  21. Weathering & Erosion SEDIMENT Transport Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Burial Heat & Pressure T Melt & Crystallize into Igneous METAMORPHIC Crystallization Melting MAGMA

  22. In Conclusion… • The rock cycle demonstrates the relationships among the three major rock groups • It is powered by the Earth’s heat • It involves processes on the Earth’s surface as well as the Earth’s interior • It connects the “water cycle” with the “tectonic cycle”.

  23. Weathering & Erosion SEDIMENT Transport Weathering & Erosion Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Heat & Pressure Burial Heat & Pressure T Melt & Crystallize METAMORPHIC Crystallization Melting MAGMA

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