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Plate tectonics lab

Plate tectonics lab. 1 Convergent Boundaries. Oceanic to Continental boundary impact - The oceanic plate ALWAYS subducts (goes under) Called Subduction : Oceanic crust pushed down to mantle, where it is melted and rises. See picture  Forms: trenches.

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Plate tectonics lab

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  1. Plate tectonics lab

  2. 1 Convergent Boundaries • Oceanic to Continental boundary impact - The oceanic plate ALWAYS subducts (goes under) • Called Subduction: Oceanic crust pushed down to mantle, where it is melted and rises. See picture Forms: trenches

  3. 2 Convergent Boundaries • Continental to Continental boundary impact • Mountain formation • Causes: Uplift(mountain building) Rocky Mountains

  4. 3 Divergent Boundaries • Two Oceanic plates-Forms Mid ocean-rifts • Called: sea floor spreading: makes new crust Mid-Atlantic Rift

  5. 4 Divergent Boundaries • Two continental plates- Form rift valleys • Called Subsidencewhich forms valleys Great rift Valley formed by divergent plates

  6. 5 Transform Boundaries • Transform plates create earthquakes! • Oceanic or Continental plates rubbing San Andreas fault: California

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