海底大陆

古代史学家写过有关一个沉没海底大陆的事迹。

Ancient historians wrote of a lost continent beneath the ocean .

同时，他们说，当扩张的海底碰到大陆的边缘就会被阻挡。

In time , they said , the moving ocean floor is blocked when it comes up against the edge of a continent .

针对自然界中天然气水合物在海底和大陆永冻区形成条件不同，通过实验研究了水的不同形态和甲烷气反应生成甲烷水合物的过程。

In consideration of the different conditions of forming natural gas hydrates in ocean bottom and permafrost , the generation process of methane hydrate was studied through the experiments of the reaction of the water with different forms to methane .

地壳轧展效应与海底扩张及大陆漂移

Crustal " rolling-extending effect " and sea-floor spreading and continental drift

大陆的海底部分叫做大陆架。

The part of a continent under the ocean is called a continental shelf .

GIS支持下近百年来闽江口海底地形地貌演变海底地貌与大陆地形不同，它一起伏不平的地形为特征。

Seabed morphological evolution in Minjiang Estuary in recent one hundred years based on GIS tools The landscape under oceans differs from that on the earth . It features with fluctuant landforms .