What do you call the formation of new ocean floor caused by movement of ocean nick plates away from each other as magma from the mantle continuously flows between the plates

A divergent Plate boundary is where new ocean floor is created.

Extra: A convergent plate boundary (Oceanic-Oceanic, Oceanic-Continental, Continental-Continental) is where crust is destroyed.  

answer; i believe the correct answer is (clockwise and outward) about the center;