It is these processes that shape and control the ocean basins, and thus define what we call the ocean . If we look at the ocean basins and distribution of continents, we see a dynamic process.
Earth is a dynamic planet, and movement is the norm.
Tectonic processes such as earthquakes and volcanic eruptions release massive amounts of energy, and are constantly changing the face of our planet. Plate tectonic theory explains the motion of the continents and the changing shapes of the ocean basins. Be familiar with the dynamics of hot spots and mantle convection. 1. divergent 2. Granite forms by oceanic crust plus marine sediments being carried to the mantle by tectonic processes and melted, it solidifies at depth before reaching the surface.