Igneous rock forms when magma cools and solidifies .

当岩浆冷却、凝固，岩浆岩就形成了。

The young moon would have been hot and blanketed by magma .

这个年轻的月球即被炽热的岩浆所覆盖。

A million years ago , molten magma explosively burst above the waves .

一百万年前，熔化的岩浆在海波之上爆发性喷发出来。

A pocket of magma deep below the lake bed leaks carbon dioxide into the lake above .

深深地埋在湖床下面的一大包的岩浆正在不断地把二氧化碳泄漏到上面的湖水中。

Pavlof 's location means that the extra weight of the adjacent sea could be squeezing magma towards the surface .

巴普洛夫火山的地理位置也说明了附近海域多余水分增加的重量也会对岩浆表面形成挤压。