Sunday, April 10, 2011


Hello Everyone!

Gregory again. This is my last stop on my tour! I am down in Chile, on Isle Tenquehuen. This island is between the South American plate and the Nazca plate. These plates form an oceanic-continental convergent boundary. That's why earthquakes and volcanoes are common in this area. The lithosphere from the Nazca plate slips under the lithosphere from the South American plate, and as a result of pressure, friction, and plate material melting in the mantle, earthquakes and volcanoes are common near convergent boundaries like this one. These plates also form a subduction zone, which is the Nazca plate moving under the South American plate. Subduction zones can happen with oceanic-continental crust or continental-continental crust. The area along the western coast of South America where the oceanic Nazca Plate is being subducted beneath the continental South American Plate is a great example of a subduction zone.

I will post a goodbye blog!

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