Crust is being made there, from the upwelling of magma.
Divergent Boundary, (Constructive Boundary).
The Divergent Boundaries.
Divergent plate boundary.
New crust is formed at a divergent boundary
It creates a divergent boundary.
This would be called a Spreading center, or a divergent plate boundary.
No. New oceanic crust is formed at a divergent boundary. A convergent boundary neither creates nor destroys crust.
Older material
how the thin outer crust is floating on the thick liquid mantle, causing the crust to move and form a divergent plate boundary
Sea-Floor Spreading is your answer.
New oceanic crust is created at the mid-oceanic ridges, a divergent plate boundary.
creates new crust and allows magma to come through.