Question

Answer the following questions about divergent boundaries, such as the Mid-Atlantic Ridge, and their associated lavas:

a. Divergent boundaries are characterized by outpourings of what type of lava: andesitic, basaltic lava, or rhyolitic?
b. What is the source of these lavas?
c. What causes the source rocks to melt?

Answer 1

a) divergent boundaries are the plates move away from each other. the type of lava is basaltic

b) magma

c) convection current cause the rocks to melt