Question

Select all that apply: What are the differences between oceanic crust and continental crust?

Question 5 options:

Oceanic crust is younger than continental crust


Oceanic crust is completely under the ocean, continental crust is mostly above the ocean


Oceanic crust is made of metamorphic rock, continental crust is made of igneous rock


Oceanic crust is thicker than continental crust

Answer 1

The oceanic crust is that part of the Earth’s crust that covers the ocean basins while The continental crust accounts for 40% of the surface of the Earth.
The first option.

Answer 2

Answer:

Oceanic crust is younger than continental crust

Explanation:

Oceanic crust is the name given to the terrestrial lithosphere layer, with specific characteristics of composition, thickness and differentiated densities, which constitute the bottom of the ocean basins. This together with the Continental Crust constitute the Earth Crust, yet they are completely distinct in composition, thickness and geological history.

The Oceanic Crust exists at the bottom of all Oceans, filling the spaces between the portions of Continental Crust. Due to its density and thickness, it plunges below the edge of the continental plate into the subduction zones. This forces a new ocean plate to be constantly formed to accommodate displacement of continents and replace the plate that is destroyed by subduction. Thus, the Oceanic Crust can be seen, like the skin, as a healing structure covering the surface areas of the Earth that are no longer covered by Continental Crust due to the continual remoteness of the continents.