1. The Rock Cycle

2. Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS

3. The Rock Cycle Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS

4. Changing Rocks  To change from Sedimentary to Metamorphic rock: –High Temperatures –Great Pressure –And/or Chemical Reactions

5. The Rock Cycle Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS High Temp Pressure Chem Reaction

6. The Rock Cycle Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS High Temp Pressure Chem Reaction

7. Changing Rocks  To change from Metamorphic to Igneous rock, a two step process: –First Step  Melting of the metamorphic rock to form Magma

8. The Rock Cycle Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS Melting High Temp Pressure Chem Reaction

9. The Rock Cycle Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS High Temp Pressure Chem Reaction Melting

10. Changing Rocks  To change from Metamorphic to Igneous rock, a two step process: – Second Step  The Magma cools and hardens to form Igneous rock

11. The Rock Cycle Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS Melting High Temp Pressure Chem Reaction Cools and Hardens

12. The Rock Cycle Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS High Temp Pressure Chem Reaction Melting Cools and Hardens

13. Changing Rocks  To change from Igneous to Sedimentary rock, also a two step process: – First Step  Weathering and Erosion at the Earth’s surface occurs to break down the Igneous rock

14. The Rock Cycle Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS High Temp Pressure Chem Reaction Melting Cools and Hardens Weathering/ Erosion

15. The Rock Cycle Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS High Temp Pressure Chem Reaction Melting Cools and Hardens Weathering/ Erosion

16. Changing Rocks  To change from Igneous to Sedimentary rock, also a two step process: – Second Step  Compacting and cementing (bonding) then act on the sediments to create sedimentary rock

17. The Rock Cycle Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS High Temp Pressure Chem Reaction Melting Cools and Hardens Weathering/ Erosion Compacting Cementing

18. Changing Rocks  What about the other types of Rock changes? – Igneous to Metamorphic… – Sedimentary to Igneous… – Metamorphic to Sedimentary…  Check out the smaller arrows…

19. The Rock Cycle Meta- morphic Rocks Sedi- mentary Rocks Igneous Rocks MAGMA SEDIMENTS High Temp Pressure Chem Reaction Melting Cools and Hardens Weathering/ Erosion Compacting Cementing