Question

Subductible of continental crust?

Answer 1

Answer:

Tectonic plates can transport both continental crust and oceanic crust, or they may be made of only one kind of crust. Oceanic crust is denser than continental crust. At a subduction zone, the oceanic crust usually sinks into the mantle beneath lighter continental crust.

Explanation:

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Answer 2

Subductible of continental crust

• Subduction zones are where the majority of continental crust is created. Rock scraped off the top of oceanic plates when they subduct beneath continental boundaries contributes to lateral expansion (the submarine edge of the continental crust).
• The subduction zone dips under one of the continents as it runs along its edge, generating volcanic mountain ranges some distance in the rear, as the Andes of South America today. The entire lithosphere is involved in subduction, and the type of crust it transports greatly influences its density.
• This lithosphere material curls downward into the hot mantle at subduction zones, where two tectonic plates collide and one slides beneath the other. Because of the two distinct types of lithosphere that make up tectonic plates—continental and oceanic—this subduction process regularly takes place.
• Given their equal densities, neither continental crust will subduct beneath the other. An oceanic subduction zone is created when two oceanic plates collide and the denser plate eventually sinks beneath the less dense plate.

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