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What are the major differences between continental crust and oceanic crust?

The oceanic crust is mainly made out of dark basalt rocks that are rich in minerals and substances like silicon and magnesium. By contrast, the continental crust is made up of light-colored granite rocks full of substances like oxygen and silicon.

What is the main difference between continental and oceanic plates?

Continental plates are much thicker that Oceanic plates. At the convergent boundaries the continental plates are pushed upward and gain thickness. The rocks and geological layers are much older on continental plates than in the oceanic plates. The Continental plates are much less dense than the Oceanic plates.

What are three differences between oceanic and continental crust answers com?

Continental crust is lighter (less dense) than oceanic crust. Continental crust is granitic. Oceanic crust is basaltic.

Why does the oceanic crust sink into the mantle?

Subduction zones, usually associated with deep ocean trenches, are found around the world. As it moves down into the subduction zone, our crust is pushed down under another plate. It bends down and starts to sink into the mantle – the older the crust, the steeper the angle.

When two tectonic plates collide the oceanic crust usually subducts beneath the continental crust?

At some convergent boundaries, an oceanic plate collides with a continental plate. Oceanic crust tends to be denser and thinner than continental crust, so the denser oceanic crust gets bent and pulled under, or subducted, beneath the lighter and thicker continental crust. This forms what is called a subduction zone.

What feature is formed in the ocean along a subduction zone?

Oceanic trenches

What do two colliding continental crust form?

Instead, a collision between two continental plates crunches and folds the rock at the boundary, lifting it up and leading to the formation of mountains and mountain ranges. The earth’s crust that makes up the continents.