Pacific Antarctic Ridge

American  

[puh-sif-ik ant-ahrk-tik rij, -ahr-tik] / pəˈsɪf ɪk æntˈɑrk tɪk ˈrɪdʒ, -ˈɑr tɪk /

noun

1. a west-southwest elevation of the seafloor in the South Pacific Ocean, separating the Pacific Plate from the Antarctic Plate: sometimes considered the southern portion of the East Pacific Rise. PAR

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Etymology

Origin of Pacific Antarctic Ridge

First recorded in 1955–60

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