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A description of the layered structure of the oceanic crust.
Earth & Environmental Science introduction to oceanic and continental crust. This video answers the following questions:What is oceanic crust?What is contine...
This video covers how the outer most layer of Earth, the crust, formed, and the difference between Earth's crust and the lithospheric tectonic plates. Althou...
26 Απρ 2024 · The theory of plate tectonics states that Earth’s solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet.
Oceanic crust, the outermost layer of Earth’s lithosphere that is found under the oceans and formed at spreading centres on oceanic ridges, which occur at divergent plate boundaries. Oceanic crust is about 6 km (4 miles) thick. It is composed of several layers, not including the overlying sediment.
The Earth’s crust is broken up into a series of massive sections called plates. These tectonic plates rest upon the convecting mantle, which causes them to move. The movements of these plates can account for noticeable geologic events such as earthquakes, volcanic eruptions, and more subtle yet sublime events, like the building of mountains.
And like an eggshell, the crust has cracked and split into many different pieces called tectonic plates. These plates can be oceanic, meaning they're found mainly under the ocean, or...
