Plate Interactions How do tectonic plates interact with

Convergent Boundaries ● Oceanic - Continental ● Oceanic crust is more dense than continental

Convergent Boundaries ● Oceanic – Oceanic ● Oceanic crust subducts under oceanic crust ●

Convergent Boundaries ● Continental– Continental ● Continental crust is too buoyant to subduct. ●

Divergent Boundaries ● 2 Types ● Mid-Ocean Ridges ● Ex: Mid-Atlantic Ridge ● Continental

Transform Boundaries ● Plates slide past one another ● No Subduction ● Example ●

Slides: 18

Download presentation

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 ● 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

Divergent Boundaries ● 2 Types ● Mid-Ocean Ridges ● Ex: Mid-Atlantic Ridge ● Continental Rift Zones ● Ex: East African Rift Valley

Divergent Boundaries

Transform Boundaries ● Plates slide past one another ● No Subduction ● Example ● San Andreas Fault ● Pacific Plate is sliding NW relative to the N. American Plate

Transform Boundaries