subducting

Studies on the northern South Island of New Zealand indicate that subducting oceanic slab can overcome the buoyancy and drag adjacent continental sliver up to about 150 km width to UHM depths, while the main body of continent can only float upon the mantle to produce strike-slip faults.

新西兰南岛北端研究表明，俯冲大洋板块能携带宽度达150km左右的窄条陆壳克服浮力达到超高压变质深度，而大陆板块碰撞的主体则浮在岩石圈上形成走滑断层。

It is popularly accepted that the dynamic nonbalance of the subducting slab and interaction between the slab and neighboring mantle are the important factors for the lateral migration of a subduction slab.

海沟后退的原因可能与俯冲板的动力不平衡以及它与周围地幔的相互作用有关。

What we know is that at the time of this grand uplift, on the western margin of North America, ocean crust, and Oceanic Plate, was subducting beneath the North American Plate.

【参考译文】我们所知道的是，这段时间内在北美的西部边缘地带，海洋地壳，以及海洋板块，从北美板块下大面积地隆起。