论文部分内容阅读
地球的历史,通常是按照岩石的绝对年龄和生物演化的历史来划分阶段。但是,构成地球外壳的岩石圈,却有着它自身的发展规律。不同时期的岩浆建造,形成了不同时期的地壳岩石组合,这就是岩石圈成长的过程。按照这一规律划分出不同的阶段,就能便于我们了解地球岩浆活动的演变史。这是现代地质科学的基本课题之一。岩石圈的岩浆岩,直接带给我们研究岩浆活动演变的信息,使我们能够了解地球深部有关岩浆的物理
The history of the earth is usually divided according to the rock’s absolute age and the history of biological evolution. However, the lithosphere that makes up the earth’s crust has its own law of development. Magmatic construction in different periods has formed crustal rock assemblages of different periods, which is the process of lithospheric growth. Dividing the different stages according to this law can help us to understand the evolution of the Earth’s magmatic activity. This is one of the basic topics of modern geosciences. The lithospheric magmatic rocks directly give us information on the evolution of magmatism, enabling us to understand the physical aspects of the Earth’s magma