PLATE BOUNDARIES Divergent Boundary Convergent Boundary

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Presentation transcript:

PLATE BOUNDARIES Divergent Boundary Convergent Boundary Transform Boundary

Different Types of Boundaries http://pubs.usgs.gov/gip/dynamic/understanding.html

Divergent Boundary Occurs where plates move apart Effects – SEA FLOOR SPREADING (oceanic) and RIFT VALLEYS (continental)

Divergent Boundary – Arabian and African Plates Arabian Plate Red Sea African Plate

Divergent Boundary – Iceland http://pubs.usgs.gov/gip/dynamic/understanding.html

Divergent Boundary - Oceanic http://www.geology.com

Divergent Boundary - Continental http://www.geology.com

Convergent Boundary Occurs where plates push together. Effects – MOUNTAINS (continental) and VOLCANOES (oceanic- due to subduction)

Convergent Boundary – Indian and Eurasian Plates = Himalaya Mountain Range Indian Plate

Convergent Boundary – Oceanic & Continental http://pubs.usgs.gov/gip/dynamic/understanding.html & http://www.geology.com

Convergent Boundary – Oceanic & Oceanic Note – plates are reversed http://pubs.usgs.gov/gip/dynamic/understanding.html & http://www.geology.com

Convergent Boundaries - Continental http://pubs.usgs.gov/gip/dynamic/understanding.html & http://www.geology.com

Transform Boundary Occurs where plates scrape past each other. Effects – EARTHQUAKES

Transform Boundary – San Andreas Fault www.geology.com

HOT SPOTS

Hot Spots Places where heated rock rises in plumes or thick columns from the mantle Effects – VOLCANOES

REVIEW QUESTIONS What are the 3 different types of plate boundaries? What is the effect of a Divergent Boundary? What are the effects of a Convergent Boundary? What is the effect of a Transform Boundary? What is a hot spot?