During Extension in Divergent Plate Boundaries a Rift Valley Forms

Q22: The Rift Valley in East Africa is

Q23: In this hypothesis the two sides of

Q24: The San Andreas Fault is a transform

Q25: Magma that is created by ocean-continent convergence

Q26: Young mountain belts, with their associated igneous

Q28: Sea-floor spreading implies that sea-floor rocks should

Q29: One possible mechanism for plate tectonic drive

Q30: An island arc is a string of

Q31: The apparent movement of the magnetic poles

Q32: Wegener reassembled the continents to form the