6000 meters is the average depth of the oceanic crust beneath the ocean floor.

6000米是大洋底下的海洋地壳平均深度。

The continental crust is higher than oceanic crust, so water flows down to fill those huge basins.

大陆地壳比海洋地壳要高，所以水会向下流入这些巨大的盆地。

That would be the oceanic crust, which is what forms the vast ocean floors.

那将 是形成广阔海底的海洋地壳。

There are actually two types of crust on Earth: continental crust and oceanic crust.

大陆地壳和海洋地壳。

On Earth, this recycling process usually happens at subduction zones, where the oceanic crust slides beneath the continental crust, warming as it goes down.

在地球上，这种循环过程通常发生在俯冲带，即海洋地壳滑落到大陆地壳之下，并在向下移动的过程中变暖。

There are two types of crust on Earth: Oceanic crust, which is about five kilometers thick, and continental crust, which is a much beefier 30-50 kilometers thick.

一种是海洋地壳，约5千米厚；另一种是大陆地壳，约30至50千米厚。

On Earth, granite forms in volcanic regions where oceanic crust is pushed down beneath a continent by plate tectonics, the geological forces that are pushing around pieces of the Earth's outer crust.

在地球上，花岗岩形成于火山地区，板块构造作用将海洋地壳推入大陆下方，板块构造是推动地球外壳碎片的地质力量。