What generates the magma necessary for seafloor spreading?
A)Decompression melting
B)Partial melting
C)Mantle plumes
D)Subduction

Question

Quizplus · Accepted Answer

Seafloor spreading occurs at mid-ocean ridges where new crust is formed. This new crust is generated by partial melting of the mantle due to decompression as it rises to fill the void created by the moving apart of the tectonic plates. This process is known as decompression melting.

What Generates the Magma Necessary for Seafloor Spreading