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The theory of plate tectonics states that Earth's surface is made of rigid slabs of rock, or plates, that move with respect to each other.

What does plate tectonics have to do with the rock cycle? These smaller, broken plates form a more fluid rock surface in the mantle.
They pull continents apart and firm rift valleys. .

plate is moving to the west-southwest at about 2.3 cm (~1 inch) per year driven by the spreading center that created the Atlantic Ocean, the Mid Atlantic Ridge. Movement of the plates over Earth’s surface is termed plate tectonics. What prominent geologic features are plate tectonics responsible for according to this video? Ironically, one of the chief outstanding questions is the one Wegener failed to resolve: What is the nature of the forces propelling the plates?

Plate tectonics theory is taught in science classrooms around the world, but just 50 years ago it was a hotly contested theory. tectonic plates . Plate tectonics explains the connection between continental drift and the formation and destruction of crust along plate boundaries. Scientists also debate how plate tectonics may have operated (if at all) earlier in the Earth’s history and whether similar processes operate, or have ever operated, on other planets in our solar system.

In other words, the plate tectonics theory explains how the rigid and hard slabs of rock (plates) move on the underlying mantle and enable … What part of the United States exists along the Ring of Fire? The idea that the Earth’s crust is made up of huge tectonic plates that are floating on an ocean of molten hot magma seemed too fantastic to be believed. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet. You can pull the books apart, push together, and slide the books past one another. This movement of plates changes the sizes, shapes, and positions of Earth's continents and oceans. For example, the discovery of fossils of tropical plants (in the form of coal deposits) in Antarctica led to the conclusion that this frozen land previously must have been situated closer to the equator, in a more temperate climate where lush, swampy vegetation could grow. Stress builds up when the plates are stuck. Plate tectonics has proven to be as important to the earth sciences as the discovery of the structure of the atom was to physics and chemistry and the theory of evolution was to the life sciences. This way of thinking was known as “catastrophism,” andgeology (the study of the Earth) was based on the belief that all earthly changes were sudden and caused by a series of catastrophes.

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