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Our Dynamic Earth

There are three major types of ways plates change and form many new geological features. There is;

__//**Convergent**//__- Convergent Boundary's colide with or dives under another. But there are many ways that can happen;

-If the two plates are located in the ocean and one plate gets pushed under it heats up and turns into magma. Then that creates an underwater volcano. This is known as __**Ocean-Ocean Subduction**__. An example of this would be Japan which was caused because the Pacific Plate and the North American Plate collided. Some characteristics would be deep sea trenches and earth quakes.

-Or if a plate gets pushed under where there are two continental plates it forms mountains like the Himalayas which was caused by the Indo-Australian and the Eurasian plate. This is known as **__Continent-Continent Subduction.__** Characteristics are earthquakes and large mountain chains.

-Also if there is a mix of continental and ocean plates its known as **__Ocean-Continent Subduction__**. Some characteristics are deep sea treanches bordering continents, volcanoes along the coast, and earthquake activity. An example would be the Andies Mountains of South America which was caused by the Nazca and the South American Plate.

__**//Divergent//**__-

Divergent Boundarys happen when magma rises and forces two ocean plates appart. If there were mid-ocean ridges, rift vallys, earthquakes and volcanoes around those plates, that would be indicators that its a Divergent Boundary. A good example is the Mid-Atlantic Ridge which occurs between the North American and African plate. Also the Red Sea is a more developed example. The Red Sea happened because of the African Plate and Arabian Plate got forced apart by Divergent Boundary's. Plus another good example is the East Pasific Rise which occurs between Nasca Plate and the Antartic Plate.



//**Transform-**//

Transform Boundarys happen when plates slide past one another which in many cases creates earth quakes. One popular example is the San Andreas Fault. Those plates, the Pacific and North American Plates, slide past each other constantly. Plus there is the North Anatolian Fault which occurs between the Arabain plate and the Eurasian plate. Also another example is the Alpine Fault in New Zealand. These two plates involved are the Alsrtalian and the Pacific plate.



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//Transform Boundary //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">. NASA. //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">Why isn't the earth perfect //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">. Web. 4 Nov. 2009. <[]>.

//<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">An Aerial View of the San Andreas Fault in the Carrizo Plain, Central California //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">. //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">How Earthquakes Happen //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">. Web. 4 Nov. 2009. <[]>.

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;"> Giddings, Al. //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">Black Smokers //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">. 2009. National Geographic Society. //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">National Geographic //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">. Web. 3 Nov. 2009. <[]>.

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;"> elosoenpersona,. //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">Machapuchare Summit (6.993m), Nepal //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">. 2007. //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">Flickr //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">. Web. 3 Nov. 2009. <[]>.