Areas of upwelling material from the mantle to form new seafloor occur along
A)convergent boundaries.
B)divergent boundaries.
C)areas of seafloor spreading.
D)transform boundaries.

Question

Quizplus · Accepted Answer

Upwelling material from the mantle to form new seafloor occurs at divergent boundaries, where plates are moving away from each other and magma rises to fill the gap between them. This process is also known as seafloor spreading. At convergent boundaries, plates are moving towards each other and one plate can be subducted beneath the other, leading to the formation of volcanic arcs. Transform boundaries involve plates moving past each other, but do not involve the formation of new seafloor.

Areas of Upwelling Material from the Mantle to Form New