deltaic-sheet trap

例句：

1. 1. The deltaic sheet trap is a unique geological feature that has been studied for decades.
   三角洲层状陷阱是一个独特的地质特征，几十年来一直备受关注。
2. 2. The deltaic sheet trap plays a crucial role in the formation of the continental shelf.
   三角洲层状陷阱在大陆架的形成中起着至关重要的作用。
3. 3.The deltaic sheet trap is often used as a reference point for studying the movement of tectonic plates.
   三角洲层状陷阱常被用作研究地壳板块运动的一个参考点。