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=Plate Tectonics By: Heath Keefer = = =

Divergent Plate: Magma rises and pushes the plates apart.
===This plate is made when two plates are pushed apart by magma rising. That is how volcanos and mountians are formed. This also expands the ocean floor. When you see ridges you know thats where two different plates come together. The "gradan" is the down fault or the part of the crack that falls down. The part that dosent fall down in the crack is called the "Horst". A example is the "Giant Crack in Africa" which is createing a new ocean. Thats because of the Somali plate and the African plate have pushed together and created the great afirican crack.===

Convergent Plate: A plate that collides with or dives under another plate.
===This happens when two tectonic plates come together and push against each other. Eventually one will slide under the other plate and its is called a convergent plate. Then the plate that comes out on top ususally becomes a mountain. Like the Himalayas they are formed from the Indian plate and the Eurasian Plate coming together. This is how Mt. Everset was formed it was when the Indian plate and the Eurasian plate come together and pushed it up and it is still growing. This is also how the Mid Atlantic Ridge was formed by the South American Plate and the African Plate.===

=Transform Plate: When two plates grind against each other.=

===This is how the San Andreas fault was formed. There are other things called strike slip faults. This is how some mountians and oceans are formed. And it triggers larger earthquakes like the great earthquake in 1906 in San Fransisco. The plates that made that earthquake happend was the North American Plate and the Pacific Plate.===

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