全球岩石圈板块划分中，属于大洋的板块部分。
主要形成于大洋板块洋中脊构造环境，部分为岛弧一洋岛环境下的产物。
They mainly formed at tectonic environment of the middle ridge of the oceanic plate, partial are the products of island arc and oceanic islands.
大洋板块俯冲有俯冲加积和俯冲侵蚀两种不同的构造作用，它可在不同的时间-空间相互转化。
The subduction of oceanic plates has two tectonic actions of subduction accretion and subduction erosion, which ar interconvertible in different time and space.
任何假设的能推动或拉动大洋板块的力，会很快因克服在其下静态的热体地幔上滑动的摩擦力而被消散。
Any hypothetic al force postulated to either push or pull oceanic plates would be quickly dissipated overcoming the friction of sliding over a static fluid mantle beneath.
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