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Plate tectonics


Plate tectonics is a scientific theory that describes the large-scale motion of Earth' s lithosphere. ... Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, ...

What is a tectonic plate? [This Dynamic Earth, USGS]


A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic ...

What is Plate Tectonics? | Plate Tectonics - LiveScience


Mar 21, 2016 ... In the 20th century, researchers realized that the Earth's crust is not one piece, but is made up of many huge tectonic plates upon which the ...

What is plate tectonics, and how does it work?


According to this theory, Earth's outer layer, or crust, consists of a series of plates made up of lithospheric material which floats on the denser asthenosphere of ...

www.ask.com/youtube?q=What Are Tectonic Plates Made Of&v=kwfNGatxUJI
Jan 13, 2015 ... How do plate tectonics REALLY work? Please ... Right – tectonic plates can be made out of two kinds of crust* – oceanic and continental.

How Did Earth's Tectonic Plates Form? Scientists Offer New ...


Apr 7, 2014 ... The finding offers a possible answer to an enduring puzzle in geology: how Earth's tectonic plates emerged. The subsequent movement of the ...

Earth Plate Tectonics - Windows to the Universe


4 days ago ... Learn more about the geologic features related to Earth's tectonic plates at This ... These plates are made of rock, but the rock is, in general, ...

Plate Tectonics 101 - National Museum of Natural History


Plate tectonics is the concept that Earth's outermost layer is made up of moving, rigid plates that interact dynamically. Here is our planet drained of water and ...

What is a Plate? - The Geological Society


An online resource from the Geological Society, outlining the chemical and mechanical properties of tectonic plates and how they move.

What are the different types of plate tectonic boundaries?


There are three kinds of plate tectonic boundaries: divergent, convergent, and ... Thus at divergent boundaries, oceanic crust, made of basalt, is created.

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Tectonic Plates: What are They Made of and What Drives Them ?


Tectonic Plates on Earth and Other Planets. Venus. Earth. Maybe the Earth's lithosphere is weaker and prone to break up ? Any differences in lithospheric ...

Geography4Kids.com: Earth Structure: Plate Tectonics


there are several major plates floating across the surface of the earth The basic idea behind plate tectonics is that there are eight major plates on the surface of ...

The Theory of Plate Tectonics


I. Definition and relevance. Plate tectonics - the theory that the earth's lithosphere is composed of a mosaic of rigid plates that are in relative motion.