Thursday, March 13, 2008
the movemnt of tectonic plates shape the earth
I will give you 4 examples of how the movements of tectonic plates shape the earth. Continental-oceanic is one example. Oceanic-oceanic collision is also an example of one. Moving apart and sliding past is both examples of how tectonic plates moving first, the continental-oceanic collisions. Its is when a plate with oceanic crust collides with a plate with continental crust, the denser oceanic crust sinks into the asthenosphere. That is another hypothesis that the tectonic plates moved apart. Second, oceanic-oceanic collisions help why the tectonic plates moved. It is when two tectonic plates with oceanic lithosphere is sub ducted, or sinks under the other plate. This is another hypothesis that the tectonic plates moved. Third, what else helps is the moving apart. This is what happens. At a divergent boundary, two tectonics plates separate from each other. As they move apart magma rises to fill the gap. At mid-oceanic ridge the rising-magma cools to form new sea floor. That is another possible way that the tectonic plates form the earth. Last, sliding past is the last example of how the tectonic plates formed the earth. At a transform boundary, two tectonic plates slide past one another. Because tectonic plates have irregular edges, they grind and jerk as they sile, which process earthquakes. This is another possible theory why tectonic plates move. In conclusion, I have told you how the tectonic plates move and made the pandeas form what we have known.
Posted by student08 at 12:58 PM