For 10 points, name this process which explains continental drift and by which the ocean floor expands.
This process results in the creation of rock formations displaying alternating stripes corresponding to the Earth's normal and reversed magnetic fields. The theory of this process was supported by the confirmation of the Vine-Matthews hypothesis and helped explain an earlier theory of Alfred Wegener. Theorized by Harry Hess, this process occurs when basaltic magma forms new crust at a divergent boundary between two tectonic plates. For 10 points, name this process which explains continental drift and by which the ocean floor expands.
This process results in the creation of rock formations displaying alternating stripes corresponding to the Earth's normal and reversed magnetic fields.
Seafloor Spreading