Oceanic crust is primarily:
A)basalt.
B)carbonate sedimentary rocks.
C)clay minerals.
D)granite.
E)siltstone.

Question

Quizplus · Accepted Answer

Oceanic crust is primarily composed of basalt, which is a volcanic rock formed from the solidification of lava. Calcium-rich plagioclase feldspar and pyroxene minerals are typically found in basalt. The composition of oceanic crust is different from that of continental crust, which is primarily composed of granite and other types of igneous, metamorphic, and sedimentary rocks.

Oceanic Crust Is Primarily