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Destructive Plate Margins:

Destructive Plate Margins:. Continental-Continental collision. Features/landforms:. Fold mountains Thrust faults Negligible volcanism Regional metamorphism Shallow focus earthquakes (SFQ) Gneiss Thickening of crust. Processes:. Mountain Building (Orogenesis) Folding Faulting

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Destructive Plate Margins:

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  1. Destructive Plate Margins: Continental-Continental collision Features/landforms: • Fold mountains • Thrust faults • Negligible volcanism • Regional metamorphism • Shallow focus earthquakes (SFQ) • Gneiss • Thickening of crust Processes: • Mountain Building (Orogenesis) • Folding • Faulting • Metamorphism • Crustal Thickening

  2. Plate Boundaries

  3. What are the main differences between Continent-Continent Collision and Oceanic-Oceanic/Oceanic–Continental Collision ? Continent-Continent Oceanic/Continent Negligible volcanism Volcanoes = andesitic rock Shallow Earthquakes Deep and Shallow Earthquakes Extensive granite generation and regional metamorphism Minor granite generation and localised metamorphism Extensive shortening of continental crust – associated thrust faulting Extensive shortening of oceanic crust – localised thrust faulting

  4. Conservative Plate Margins: Features/landforms: • Shallow focus earthquakes (SFQ) • Fault scarps • Lateral fault movement • Tear/wrench fault (Strike/Slip) • Fault zone • San Andreas Fault Processes: • Lateral plate movement • Pressure build up • Stress release • Fault Displacement

  5. Why are conservative margins so hazardous to humans ? Plate Boundaries

  6. Plate Boundaries

  7. Plate Tectonics

  8. Characteristics of Plates LITHOSPHERE

  9. Heat Flow

  10. Plate Tectonics Assessment Plate Tectonics Assessment – For Monday Morning ALL homework to be handed on Monday morning

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