三山岛新立矿区属于海底矿床开采，开采的关键是开采过程中海底不产生非均匀沉降、裂缝和塌陷。

Xinli mining area of Sanshandao gold mine belongs to submarine deposit. The key point is without the inhomogeneous sedimentation, crack and subsidence in exploitation of the seabed.

youdao

同样，海底地质认为，如果硫化物矿床是巨大的，并不需要其体积大，只需其不定型和其金属含量高。

Similarly, in the world of seabed geology, if a sulphide deposit is massive, it is not necessarily big, but formless and rich in metals.

youdao

令人喜悦的是，在大陆之间横卧在海底的山系里，海洋学家开始找到一些富含这些矿物的矿床（见地图）。

The excitement arose because oceanographers had started to find these mineral-rich deposits on the network of submerged mountain ranges that run along the seabed between continents (see map).

youdao