岩浆作用是地球岩石圈物质演化的主导过程。计算表明,在地质历史过程中,火山作用甚至能以现代的喷发速度把相当于地壳体积的大量物质带到地表。岩浆作用在原始地壳形成时期具有决定性的意义。关于这一点,正如人们根据有关月岩岩石学的资料所推测的那样,在那时,地球的整个外壳发生过熔融和分异作用。与月球相比,地球无比巨大的能量决定了地球物质迅速的、深部的和长期的分异作用。因此,在类地行星物质演化的更晚期阶段,在前寒武系建造中,存在着某些与月岩(“灰色片麻岩等”)类似的、反映 Magmatic action is the dominant process of material evolution of the Earth’s lithosphere. Calculations show that during the geological history, volcanism can even bring a large amount of matter equivalent to the crust volume to the surface at a modern eruption rate. Magmatic processes are of decisive significance in the formation of the original crust. In this regard, as one would infer from the data on the petrology of the rock, at that moment, the entire shell of the earth melted and differentiated. Compared with the moon, the enormous energy of the earth determines the rapid, deep and long-term differentiation of the earth’s matter. Therefore, at a later stage of the evolution of terrestrial planets, there are some similarities to the lunar rocks (“gray gneiss,” etc.) in the Precambrian construction