沉积物被从两侧的弧前脊和岛弧冲到盆地，使该处地壳承重增加，形成洼地。
Sediments washed into the basin from both the fore-arc ridge and island arc weigh down the crust in this area, creating the depression.
通过对该蛇绿岩带地质及岩石地球化学特征等进行了论述，认为其形成于近弧的弧后盆地扩张脊环境。
This paper discusses the feature of geology, lithogeochemical of this ophiolitic belt, so the ophiolite is produced from near the back-arc basin spreading ridge.
海脊东部受弧陆碰撞的影响而急剧抬升。
The rapid rising of the east part of the ridge was caused by the eastern arc...
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