Mod+2+-+Audrey+I

= Dynamic Earth =

__Divergent Boundaries__[[image:divergentboundary3.jpg width="234" height="139" align="right"]]
These boundaries occur when magma rises and pushes the plates apart. Most of these boundaries are on ocean floors, and have rift valleys. The rift valleys are deep valleys at the center of a mid-ocean ridge. Effects that are found at a divergent boundary between oceanic plates include: a submarine mountain range such as the Mid-Atlantic Ridge, volcanic activity, shallow earthquake activity, creation of new seafloor and a widening ocean basin.

__Sub-types__ __Examples__
 * Ocean hitting ocean
 * Continent hitting continent
 * Causes Earthquakes and volcanoes
 * The Great Rift Valley

__Convergent Boundaries__
Convergent boundaries are when the plates collide together, or one dives under one another. In the ocean, earthquakes occur, which cause tsunami's, such as the tsunami that took place in New Orleans. On land the plates may dive under each other which will make mountains, such as the Alps Mountains in Switzerland. If by magic we could pull and drain the pacific ocean we would see long narrow trenches thousands of kilometers long, and 8-10 kilometers deep. __Sub-types__
 * Ocean hitting continent
 * Ocean hitting ocean
 * Continent hitting continent

__Examples__
 * The Andes Mountain Range
 * Himalayan Mountains
 * Mariana Trench

__ Transport Boundaries __
These boundaries form when two plates grind against each other, which normally triggers earthquakes. Most transform boundaries are found in all oceans.Transport boundaries are also known as transform-fault boundaries__.__ __Examples__
 * San Andrea Fault
 * Dead Sea Fault
 * Anatolian Fault


 * "USGS." //Understanding Plate Motions//. N.p., n.d. Web. 5 May 1999. .
 * "National Geographic." //Plate Tectonics//. N.p., n.d. Web. 1 May .