Which of these igneous rocks is the most abundant rock type in oceanic crust?
A) peridotite
B) granite
C) rhyolite
D) basalt

Question

Quizplus · Accepted Answer

Basalt is the most abundant rock type in oceanic crust. It forms from solidified lava flows and makes up most of the seafloor. Peridotite is a common rock type in the upper mantle, but not in oceanic crust. Granite and rhyolite are more commonly found in continental crust.

Which of These Igneous Rocks Is the Most Abundant Rock