SUBDUCTION ZONE


Meaning of SUBDUCTION ZONE in English

Oceanic trench area in which, according to the theory of plate tectonics , the seafloor underthrusts an adjacent plate, dragging the accumulated trench sediments downward into the Earth's upper mantle.

See also deep-sea trench .

Britannica Concise Encyclopedia.      Краткая энциклопедия Британика.