Define plate tectonic theory. plate tectonics meaning: 1. the study of how the surface of the earth is formed, how the separate pieces of it move, and the…. What is a tectonic plate?

Tectonics embraces as its chief working principle the concept of plate tectonics (q.v. "Tectonics" is a part of the Greek root for "to build" and together the terms define how the Earth's surface is built up of moving plates. Like the scientists before us, we will now merge the ideas of continental drift and seafloor spreading into the theory of plate tectonics. What is a tectonic plate? The Earth's plates jostle about in fits and starts that are punctuated with earthquakes and volcanic eruptions. Theory of Plate Tectonics.

The idea that these different 'puzzle pieces,' called tectonic plates, are constantly moving and changing the surface of our Earth is a simplified version of the theory of plate tectonics. A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.
When the concept of seafloor spreading came along, scientists recognized that it was the mechanism to explain how continents could move around Earth’s surface. Plate tectonics is the scientific theory that attempts to explain the movements of the Earth's lithosphere that have formed the landscape features we see across the globe today. Plate Tectonics. Define plate tectonics. Plate tectonics is the framework in which geologists study and understand the inner workings of the earth. The relative fluidity of the asthenosphere allows the tectonic plates to undergo motion in different directions. See more. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest.

By definition, the word "plate" in geologic terms means a large slab of solid rock. The crust is broken up into giant tectonic plates that ride atop the magma, hot melted-rock material that makes up much of the interior of the Earth. ). 11.2 Earthquakes and Plate Tectonics The distribution of earthquakes across the globe is shown in Figure 11.7. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest. 2 Minute Read. A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. This animation shows the plate tectonic evolution of the Earth from the time of Pangea, 240 million years ago, to the formation of Pangea Proxima, 250 million years in the future.

Plate tectonics definition, a theory of global tectonics in which the lithosphere is divided into a number of crustal plates, each of which moves on the plastic asthenosphere more or less independently to collide with, slide under, or move past adjacent plates. A short description about the mantle convection system that drives plate tectonics. n. 1. Learn more. ), a theory that was formulated in the late 1960s by American, Canadian, and British geophysicists to broaden and synthesize the notion of continental drift and the seafloor spreading hypothesis (qq.v. plate tectonics synonyms, plate tectonics pronunciation, plate tectonics translation, English dictionary definition of plate tectonics. plate tectonic theory synonyms, plate tectonic theory pronunciation, plate tectonic theory translation, English dictionary definition of plate tectonic theory.
Description English: The key principle of plate tectonics is that the lithosphere exists as separate and distinct tectonic plates, which float on the fluid-like (visco-elastic solid) asthenosphere. It is relatively easy to see the relationships between earthquakes and the plate boundaries. Plate tectonics - definition of plate tectonics by The Free Dictionary.


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