东海陆架坡折地形和沉积作用过程

摘要: 东海陆架坡折带位于东海陆架最外缘与东海陆坡之间坡度明显转折地带。坡折点水深在132-162米之间,平均水深为147米,坡折带宽度在4-18公里。东海陆架坡折带深受晚更新世以来海平面升降变动的影响。东海陆架坡折带没有形成永久性的细粒沉积层,而是现代陆源细物质向冲绳海槽方向搬运的暂时停留区。海底峡谷往往成为陆源物质向陆架外搬运的重要通道。

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