Pacific-Antarctic Ridge

The Pacific-Antarctic Ridge is a submarine mountain chain in the southeastern Pacific Ocean that extends from the Sala y Gómez Ridge to Antarctica. It is part of the global system of oceanic ridges where new crust is formed as tectonic plates diverge. This ridge is characterized by seafloor spreading, a process where molten magma rises from the Earth's mantle, cools, and forms new oceanic crust. The rate of spreading along the Pacific-Antarctic Ridge is considered intermediate to fast. Unlike some other mid-ocean ridges, it does not typically feature a rift valley at its crest. This geological feature plays a role in defining the boundaries of tectonic plates in the Pacific region.1234