Living on the plate margins

What be dwelling margins? Plate margins are the edges of the plates, where all the provide of disposition is released in worldquakes and volcanoes. There are three principal(prenominal) characters of plate margins: - Spreading Boundaries There are devil tokens of bedspread boundary Ridges, where cutting rock is formed, push the plates apart, and Rift, where the plates pull apart, and the earth between them sinks. On the ocean floor the plates are spreading. all(a) along the mid ocean ridge, volcanic action at law is pouring new lava out onto the seabed. As it hardens, it becomes new rock, plotmeal pushing the cheek, on either side of it away. Another token of spreading boundary is the African Rift Valley. As the 2 plates are moving apart, the earth between them is becoming stretched. As it stretches it sinks, because it is thinner. It is a little bit like taking a fix of gum, and stretching it out. The pieces in your fingers stay thick, but the piece in the middl e gets thinner and thinner, as it is stretched. overlap Boundaries Converging (coming together) Boundaries, are where two plates are banging into each other. What happens when they shake up depends on the type of plate they are. In a subduction regularize one plate is world pushed beneath the other.

It happens when a visible radiation plate hits a thick plate. The lighter plate is pushed beneath the heavier one. This often happens where continents meet the ocean. As the lighter ocean crust is forced downwards, it takes urine with it. The water causes the rock to melt at pooh-pooh temperatures than normal. Th e pressure inside(a) the earth is much grea! ter than at the surface, it increases the deeper you go. The new molten rock tends to rise to the area of lower pressure, sometimes forming... If you indispensableness to get a full essay, rig it on our website: OrderCustomPaper.com

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