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Created with Fabric.js 1.4.5 Earth's Egg Shell Earth's Egg Shell By Alana and Antonio Defenition : In plate tectonics, a divergent boundary or divergent plate boundary (also known as a constructive boundary or an extensional boundary) is a linear feature that exists between two tectonic plates that are moving away from each other. Divergent boundary Transform boundary Convergent boundary When the boundaries diverge in a divergent boundary the magma that is in side our Earth either gets cooled or creates a volcano Definition : In plate tectonics, a convergent boundary, also known as a destructive plate boundary (because of subduction), is an actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide. As a result of pressure, friction, and plate material melting in the mantle, earthquakes and volcanoes are common near convergent boundaries. When two plates move towards one another, they form either a subduction] zone or a continental collision. Pacific-Antarctic Ridge Stretching for 4,300 km north-west from the Pacific-Antarctic Ridge to the Osbourn Seamount The Subduction of the northern part of the Pacific Plate and the NW North American Plate that is forming the Aleutian Islands. occupying an area of 6,821 sq mi (17,666 km²) and extending about 1,200 mi (1,900 km) westward from the Alaska Peninsula toward the Kamchatka Peninsula Fun Fact : As tectonic plates move, some are pulled apart and new crust and in this instant it made new islands. Convergent boundaries cause the Earth to stay i n balance when divergent plates accure. Fun Fact : It may look like the the Earth is growing but it's not. there is a thing called a Convergent boundary that destroys the Earth so we do not grow bigger. Definiton : A transform fault or transform boundary, also known as conservative plate boundary since these faults neither create nor destroy lithosphere, is a type of fault whose relative motion is predominantly horizontal in either sinistral or dextral direction. Furthermore, transform faults end abruptly and are connected on both ends to other faults, ridges, or subduction zones. When two boundaries transform they make a diagonal row of divergent boundaries Fun Fact : The effect of a fault is to relieve strain, which can be caused by compression, extension, or lateral stress in the rock layers at the surface or deep in the Earths subsurface. North America's Queen Charlotte Fault The P nodal focal mechanism for the 1949 earthquake indicates a virtually pure strike-slip movement with a northwest striking nodal plane corresponding to the strike of the fault. The 1970 earthquake did however show a similar strike-slip movement with a small but significant thrust component, consistent with relative plate motion. The 1949 earthquake was larger than the 1906 San Francisco earthquake, causing nearly a 500 kilometer long segment of the Queen Charlotte Fault to break.
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