One of the ways that continental drift proceeds, for 10 points, identify this process where new ocean crust is created.
Lawrence Morley and Walter Pitman independently confirmed observations by Vine and Matthews, scientists who formed a namesake hypothesis describing this process.  It was confirmed by magnetic stripes resulting from changes in the polarity of the earth's magnetic field.  This process is thought to be the driving force behind the separation of East Africa from Asia via the expansion of the Red Sea.  It also implies that the age of rock increases as one moves father away from a rift.  One of the ways that continental drift proceeds, for 10 points, identify this process where new ocean crust is created.
Lawrence Morley and Walter Pitman independently confirmed observations by Vine and Matthews, scientists who formed a namesake hypothesis describing this process.  
{Seafloor Spreading} (do not accept "Continental Drift")