地球内部岩浆的温度是非常高的，靠近中心的地方温度高达4000℃。它像炼

地球内部岩浆的温度是非常高的，靠近中心的地方温度高达4000℃。它像炼钢的铁水一样可以流动。随着地球内部温度的升高，这些富含气体的岩浆就好像沸腾的稀粥一样时不时地总想往外喷。岩浆一方面要聚集能量，另一方面要选择地壳比较薄弱和地壳中有裂缝的地方作为冲出去的缺口。 <BR>随着岩浆中气体的析出，内部压力不断增大，活动不断加强，当气体压力到一定极限以后，岩浆便破“盖”而出冲天而上。

地球内部岩浆的温度是非常高的，靠近中心的地方温度高达4000℃。 它像炼钢的铁水一样可以流动。 随着地球内部温度的升高，这些富含气体的岩浆就好像沸腾的稀粥一样时不时地总想往外喷。 岩浆一方面要聚集能量，另一方面要选择地壳比较薄弱和地壳中有裂缝的地方作为冲出去的缺口。 <BR>随着岩浆中气体的析出，内部压力不断增大，活动不断加强，当气体压力到一定极限以后，岩浆便破“盖”而出冲天而上。 ...

The temperature of magma in the interior of the earth is very high, as high as 4000 ℃ near the center. It can flow like molten iron. As the temperature inside the earth rises, these gas rich magmas, like boiling porridge, always want to spray out from time to time. On the one hand, magma needs to gather energy, on the other hand, it needs to choose the place where the crust is relatively weak and there are cracks in the crust as the punching out gap.<BR>With the separation of gas in magma, the internal pressure is increasing and the activity is strengthening. When the gas pressure reaches a certain limit, the magma will break through the "cap" and soar upward.<BR>