Living on the plate margins

What be dwelling margins? Plate margins argon the edges of the home bases, where all the power of impulse is released in earthquakes and volcanoes. There argon three main characters of shield margins: - Spreading Boundaries There argon devil tokens of paste term Ridges, where new rock is formed, foment the musical scales apart, and Rift, where the plates pull apart, and the earth betwixt them sinks. On the maritime floor the plates atomic number 18 spreading. All along the pith ocean ridge, volcanic action at law is gushy new lava out onto the seabed. As it hardens, it becomes new rock, plotmeal pushing the crust, on either side of it away. other type of spreading boundary is the African Rift Valley. As the 2 plates are lamentable apart, the earth between them is neat stretched. As it stretches it sinks, because it is thinner. It is a dwarfish bit like taking a piece of gum, and stint it out. The pieces in your fingers stay thick, tho the piece in the middle gets thinner and thinner, as it is stretched. Converging Boundaries Converging (coming together) Boundaries, are where two plates are hit into each other. What happens when they collide depends on the type of plate they are. In a subduction zone one plate is world pushed beneath the other.

It happens when a lighter plate hits a thick plate. The lighter plate is pushed under the heavier one. This often happens where continents tint the ocean. As the lighter ocean crust is forced downwards, it takes weewee with it. The water causes the rock to move at lower temperatures than normal. The insistence inside(a) the earth is much greater than at the surface, it increases the deeper you go. The new liquified rock tends to rise to the compass of lower pressure, sometimes forming... If you indispensability to get a in full essay, order it on our website: Orderessay

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