Where do rift valleys form along the oceanic ridge system?
A)Along the flanks of the continent where the slope levels out to meet the seafloor
B)Along the axis of some ridge segments where the rift is down-faulted
C)Transecting the ridge where transform boundaries exist
D)Where the seafloor plunges back into the mantle as the plate is consumed

Question

Quizplus · Accepted Answer

Rift valleys form along the axis of some ridge segments where the rift is down-faulted. This is where the lithosphere is pulled apart and creates a gap along the crest of the ridge. As magma rises to fill the gap, it solidifies and forms new oceanic crust, which widens the rift over time.

Where Do Rift Valleys Form Along the Oceanic Ridge System