At divergent boundaries the dominant rock type is
A)basalt.
B)granite.
C)andesite.
D)basalt,granite,and andesite.

Question

Quizplus · Accepted Answer

At divergent boundaries, the dominant rock type is basalt which is formed from rapidly solidified lava. This is because divergent boundaries are characterized by the pulling apart or separation of two tectonic plates, which creates a gap or rift that is filled with magma from the underlying mantle. The magma solidifies quickly to form new oceanic crust, which is made up of basaltic rocks. Therefore, basalt is the best choice as the dominant rock type at divergent boundaries.

At Divergent Boundaries the Dominant Rock Type Is