Explain three types of plate movement and their results ?
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What are the types of plate movements? How do they occur?
The Earth's crust is broken up into a number of plates that are constantly moving across the globe. Geologists have given names to the types of ways these plates interact with one another to shape the geological world we live in.
These are the types of ways plates can interact with one another:
Constructive / Divergent plate margins is when two plates are moving apart. This causes magma (molten rock) from below to rise up, filling in the gap and cooling down from the cooler temperatures above. This creates a new crust. An example of this happening as along the mid-ocean ridge in the Atlantic Ocean.Destructive / Convergent plate margins are when two plates are moving towards each other, but one is heavier than the other. Usually this is the case between an oceanic plate and a continental plate. Oceanic plates are plates that are mostly under sea, while continental plates are mostly land. As oceanic plates are heavier they get submerged under the continental plate. This is called subduction, and is the cause of volcanoes from the sudden rising of magma pressing against the crust.Collision margins are similar to convergent margins, except in this case, both plates are roughly of equal weight (so presumably both are continental plates or both are oceanic plates) and therefore their force against each other is equal. One cannot subduct under the other. So in this case, both smash against each other, giving rise to fold mountains such as the Himalayas. The creases in the plates creates the mountains.Conservative margins are when two plates are sliding past each other, rather than moving to or away from one another. This is a cause of earthquakes as the plate boundaries are uneven, and so will click against one another, causing earth quakes. Since no magma rises from this action, and there is no subduction, volcanoes do not form from this action.
The Earth's crust is broken up into a number of plates that are constantly moving across the globe. Geologists have given names to the types of ways these plates interact with one another to shape the geological world we live in.
These are the types of ways plates can interact with one another:
Constructive / Divergent plate margins is when two plates are moving apart. This causes magma (molten rock) from below to rise up, filling in the gap and cooling down from the cooler temperatures above. This creates a new crust. An example of this happening as along the mid-ocean ridge in the Atlantic Ocean.Destructive / Convergent plate margins are when two plates are moving towards each other, but one is heavier than the other. Usually this is the case between an oceanic plate and a continental plate. Oceanic plates are plates that are mostly under sea, while continental plates are mostly land. As oceanic plates are heavier they get submerged under the continental plate. This is called subduction, and is the cause of volcanoes from the sudden rising of magma pressing against the crust.Collision margins are similar to convergent margins, except in this case, both plates are roughly of equal weight (so presumably both are continental plates or both are oceanic plates) and therefore their force against each other is equal. One cannot subduct under the other. So in this case, both smash against each other, giving rise to fold mountains such as the Himalayas. The creases in the plates creates the mountains.Conservative margins are when two plates are sliding past each other, rather than moving to or away from one another. This is a cause of earthquakes as the plate boundaries are uneven, and so will click against one another, causing earth quakes. Since no magma rises from this action, and there is no subduction, volcanoes do not form from this action.
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