Plate Interactions How do tectonic plates interact with one another? What are the different types of plate boundaries? Where are real world examples of each type? What features are associated with each type?
Convergent Boundaries Oceanic - Continental Oceanic crust is more dense than continental crust Subduction Zones Dense oceanic crust is forced down into the mantle under the continental crust. Features Volcanic mountain chains Oceanic trenches
Convergent Boundaries
Convergent Boundaries Oceanic – Oceanic Oceanic crust subducts under oceanic crust Features Volcanic island arcs Oceanic trenches Examples The Aleutian Islands, Japan, the Philippines
Convergent Boundaries
Convergent Boundaries
Convergent Boundaries
Convergent Boundaries Continental– Continental Continental crust is too buoyant to subduct. Tectonic Uplift- Crust is forced upward Features High plateaus and mountain ranges Examples Himalayan Mountains Tibetan Plateau
Convergent Boundaries
Convergent Boundaries
Divergent Boundaries 2 Types Mid-Ocean Ridges Continental Rift Zones Ex: Mid-Atlantic Ridge Continental Rift Zones Ex: East African Rift Valley
Divergent Boundaries
Divergent Boundaries
Divergent Boundaries
Divergent Boundaries
Divergent Boundaries
Transform Boundaries Plates slide past one another Example No Subduction Example San Andreas Fault Pacific Plate is sliding NW relative to the N. American Plate
Transform Boundaries