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Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός "pertaining to building") is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of the Earth's lithosphere, since tectonic processes began on Earth between 3 and 3.5 billion years ago.The model builds on the concept of continental...


The majority of the world's active volcanoes occur along plate boundaries, with the Pacific Plate's Ring of Fire being most active and famous. Tectonic plates can include continental crust or oceanic crust, and typically, a single plate carries both.


Plate tectonics occur on the lithosphere. It is composed of thecrust and the rigid uppermost part of the mantle. Go. science math history literature technology health law business All Sections.


What is Plate Tectonics? Plate tectonics is a scientific theory that says the surface of the Earth consists of a series of fractured lithospheric plates.. Plate tectonics can help explain the landforms seen on the surface of the Earth. Plate tectonics can also help explain why and where earthquakes and volcanoes occur.


Plate tectonics occur on the lithosphere. It is composed of thecrust and the rigid uppermost part of the mantle. The lithosphereis the 'plate' of plate tectonics. share with friends.


Plate Tectonics. The Earth's plates jostle about in fits and starts that are punctuated with earthquakes and volcanic eruptions. ... These convergent boundaries also occur where a plate of ocean ...


Plate tectonics governs the topography and motions of the surface of Earth, and the loss of heat from Earth's interior, but appears to be found uniquely on Earth in the Solar System. Why does plate tectonics occur only on Earth? This is one of the major questions in earth and planetary sciences research, and raises a wide range of related ...


The other way that's used to explain plate tectonics is not as popular. It's all about how gravity will make the denser (heavier) plate subduct and the forces associated with that (pulling away on one end and pushing down on another) gives you plate tectonics.


In 1977, after decades of tediously collecting and mapping ocean sonar data, scientists began to see a fairly accurate picture of the seafloor emerge. The Tharp-Heezen map illustrated the geological features that characterize the seafloor and became a crucial factor in the acceptance of the theories of plate tectonics and continental drift.


Plate-Tectonics Theory. According to the now generally accepted "plate-tectonics" theory, scientists believe that the Earth's surface is broken into a number of shifting slabs or plates, which average about 50 miles in thickness.These plates move relative to one another above a hotter, deeper, more mobile zone at average rates as great as a few inches per year.