Wednesday, February 27, 2013

Earthquakes

Earthquakes
Johann Asmodeus
Axia College of University of Phoenix

Earthquakes are caused by the exertion of tectonic places. The plates are fundamentally sections of the Earth’s glow. If both plates are moving absent from superstar another, this creates a Divergent plate margin. When this type of motion extends in the marineic crust, midocean ridges are created. When plates move away from whiz another in the continental crust, rift valleys are created.
The reverse gear motion results in a Convergent plate margin. This occurs where two plates move toward each other. (Murck, Skinner, & Mackenzie. 2008). The areas where the plates meet as they move towards one another can be categorized into three disparate zones: collision zone, subduction zone, and transform faults.
Collision zones typically occur in the continental crust. As the plates push directly against each other, the crust can only move upwards and downwards. This action is what creates potentiometer ranges.
A subduction zone is closely commonly found to occur in the oceanic crust. In a subduction zone, one plate will slide underneath the other plate. As the plate slides under the other plate and into the asthenosphere, water is released from the wet rocks of the ocean floor. This promotes the formation of magma. (Murck, Skinner, & Mackenzie.

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2008). Volcanoes are a common feature on a subduction zone.
If two plates slide past each other, a transform fault occurs. Most transform faults occur in the oceanic crust. However, transform faults can also occur in the continental crust such as the San Andreas fault in California.
There is a tremendous amount of stuff produced by tectonic motion. This pressure is what causes the rocks on either side of a large fracture to move past each other. (Murck, Skinner, & Mackenzie. 2008). Generally, most rock does not have a smooth surface. This leads to a lot of friction between both sides of the fracture. Because of this, enough pressure must be...If you want to get a full essay, mold it on our website: Orderessay



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