Plate Tectonics Essay

The theory of plate tectonics says the lithosphere is split into different plates that move around on top of the surface of the Earth. Though it is just a theory geologic time, ocean trenches, seafloor spreading, mountains, volcanoes, and earthquakes are all examples of evidence that support the theory of plate tectonics. Geologic time shows sediment patterns in different layers of the Earth. Geologic time is separated in three main periods called the Cenozoic Era, the Paleozoic Era, and the Mesozoic

Plate Tectonics, And their relation to the world. ___ By Jillian Abreu There are many ways that earthquakes, plate boundaries, volcanoes, seafloor spreading, the Earth 's core, convection currents, and subduction connect to each other, but the main way they are all connected is by plate tectonics. It all starts with plate tectonics. A theory by Alfred Wagner said that Pangaea, which is a land mass of all the continents combined, had been moved by continental drift to form the positions our continents

Assess the strength of the relationship between tectonic processes and major landforms on the earth’s surface. Tectonic processes have been responsible for the major landforms across the Earth’s surface. These processes are controlled by the convection currents rising from the Earth’s mantle. Firstly, one place where tectonic activity occurs is at oceanic to oceanic constructive plate boundaries. Here two plates diverge or move away from each other, pushed apart by huge convection currents

According to the theory of plate tectonics there is constant motion in the lithosphere which causes the many plates lying upon it to move relatively to one another due to convection currents. There are 3 boundaries where volcanic and seismic events, but not limited to, occur. The constructive plate boundary is where 2 plates, such as the North American plate and the Eurasian plate move apart causing sea-floor spreading and volcanic activity – when the less dense basaltic lava from the asthenosphere

Based on the information in the textbook and the instructor note, plate tectonics is the Earth’s surface divided into several plates that move slowly and change in size. I found the video Plate Tectonics: “Birth of a Theory” in session 13 very useful. It helps me understand the material easily by using the animation to illustrate the process of plate tectonics. It is amazing about the fact that the continents can be made to fit together like pieces of a picture puzzle. About 225 million years ago

Plate tectonics is a major subject, and it can be broken down into multiple smaller subjects. One of these subjects would be plate boundaries. There are three different types of boundaries. What are these boundaries? How do the boundaries move? What are the results of these boundaries? These are some commonly asked questions. Here are the different boundaries, how they move, and the results they have on Earth. The first boundary is the divergent boundary. Divergent boundaries occur when two tectonic

Have you ever wondered why our continents are in the positions that they are in today? Plate Tectonics can be used to explain the movement of the plates and the landforms they make. These landforms include mountains, volcanoes, rift valleys, and much more that are made by convergent and divergent boundaries. The plates are moved by the convection currents below the surface which is caused by a heat source, the mantle. Another landform that is made is a mid-ocean ridge, at which sea floor spreading

mountains are created from plate tectonics. Convergent plates are made out of the lithosphere. The lithosphere is the rocky outer part of Earth containing the crust (the thin layer of rock under the land) and the mantle (a layer of mostly silicate rock that is directly under the crust). Convergent plates are tectonic plates that collide and scrape against each other to form geological features such as mountains and volcanoes. Mountains and volcanoes form when one convergent plate slides under another one

can be more or less dense than the other. There are three types of convergent boundaries: oceanic plate-continental plate convergence, oceanic plate-oceanic plate convergence, and continental-continental plate convergence. An example of this type of boundary is the collision between the Eurasian Plate and the Indo-Australian Plate which is forming the Himalayas. A divergent boundary is where the plates are moving away from each other. These areas can form in the middle of continents but eventually

Continental Drift and Plate Tectonics Theory (Part 1a) Introduction: The Beginning of the “Continental Drift Theory” In the middle of the eighteenth century, James Hutton proposed a theory, uniformitarianism; “the present is the key to the past”. It held that processes such as geologic forces- gradual and catastrophic-occurring in the present were the same that operated in the past. (Matt Rosenberg, 2004) This theory coincides with the theory of Continental Drift that was first proposed by Abraham