Ayamie Lawton

Mrs. Troester

Essay

April 7, 2017

Mountains

I am here to talk about the three most important mountains. There are many types of mountains, yes, but the three of the important mountains are the Dome mountain, Volcanic mountain, and the Pleatu mountains.

     First, the most important mountain is the Dome mountain. Dome mountains form when large globs of magma float up from beneath the crust and push up surface rocks. It then creates a large done of harder rocks under the surface, which erosion sometimes reveals. This mountain got its name, because it was a mountain range resulting from dissection of a structural dome also called a domal mountain. Dome mountains can be located in British Columbia, Canada.  Did you know, dome mountains don’t usually get as high as folded mountains, because the force of the magma underneath doesn’t push hard enough?

     Next, the second mountain is the volcanic mountain. Volcanic mountains form as lava oozes out from cracks in the earth. Then, the lava builds up around the area where the eruption occurs. Volcanic mountains are an opening in the earth’s crust from which hot gasses, lava, and as flow or are thrown, but during an eruption. It’s usually a cone shaped mountain formed by the materials that flowed or were thrown out from such an opening. Volcanic mountains are mostly located in Chile and Argentina. Have you studied these volcanoes? If you have, you would know that they are also located where tectonic plates meet.

     Lastly, the third most important mountains are the Pleatu Mountains. Pleatu Mountains are formed by different types of processes, including upwelling of volcanic magma extrusion of lava, and erosion by water and glaciers. Magma rises from the mantle, causing the ground to swell upward so that flat areas of rock are uplifted and then this uplifted rock forms a Pleatu. Pleatu mountains are mostly located in China, India, and Asia. Did you know that the largest Pleatu, located in central Asia? It stretches through the countries of China and India. This mountain stretches to be four times the size of the U.S., state of Texas.

     So yes, there are many types of mountains, but the three most important mountains are Dome mountains, Volcanic Mountains, And Pleatu Mountains.