लगातार नई परत जोड़ने वाली प्रक्रिया निम्नलिखित में से कौन-सी है?

Seafloor spreading is the geological process occurring along divergent mid-oceanic ridges (such as the Mid-Atlantic Ridge) where upwelling magma from the mantle cools and solidifies upon reaching ocean waters, continuously generating and adding new basaltic oceanic crust.