Most of layer 3 of the oceanic crust is composed of __________.
A) pelagic sediment
B) pillow basalt
C) gabbro
D) terrigenous sediment

Question

Quizplus · Accepted Answer

Layer 3 of the oceanic crust is primarily composed of gabbro, which is a type of intrusive igneous rock formed from the slow cooling of magma beneath the Earth's surface. Pelagic sediment (A) and terrigenous sediment (D) typically occur on the ocean floor at shallower depths, while pillow basalt (B) is found in the uppermost layer of the oceanic crust.

Most of Layer 3 of the Oceanic Crust Is Composed