Question

The oceanic crust is made primarily from this type of rock.

Answer 1

The oceanic crust is primarily composed of basalt, which is a type of igneous rock. Basalt is formed from the rapid cooling of lava at the ocean floor, and it typically has a fine-grained texture due to the quick solidification process. The oceanic crust is also relatively thin compared to continental crust, averaging about 5 to 10 kilometers in thickness.