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Plate Tectonics: Metamorphic Rocks

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Plate Tectonics: Metamorphic Rocks
Would the world be the same if there weren't plate tectonics? The answer is no, because that is how the oceans, land, and many more things were created. There would be no rocks or plate boundaries. Every living thing on earth would have to adapt to these types of things, if there even was living things on earth. The different types of rocks like igneous, sedimentary, and metamorphic have to go through a process to become that type of rock. Igneous is formed when magma is cooled and hardens. Metamorphic rocks are the exact opposite, the rock is formed under the earth's surface, when heat and pressure are added. Lastly, sedimentary rocks are formed by sediments being pressured together over time. Some features of the rock are, that the sediments can be seen, there are ribbon like layers, crystals, and wholes. None of these thing would be here without plate tectonics. How would metamorphic rocks get under the earth's surface or where would the magma and sediments come from to complete the process? Rocks can not …show more content…
These layers are inner core, outer core, mantle, and the crust.The outer part of the mantle; the lithosphere is a big part of plate tectonics which ”is the theory that the Earth's outer shell is divided into several plates that glide over the mantle”(6-9 http://www.easybib.com/cite/view#). Some features of the mantle are that it is 1,800 miles thick and is a liquid layer that has two layer in it; lithosphere and atmosphere. The only other liquid layer is the outer core that is approximately 1,400 miles thick and made out of iron and nickel. Inner core and the crust are the solid layers. 800 miles is how thick the inner core is and it is made of dense metals. The crust has two different types of crust; oceanic and continental crust. There is nothing to be able to adapt for the earth, but it still plays a big part with plate

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