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地球科学的社会功能在于保证人类社会对矿物资源的需要和防止、减小自然灾害造成的破坏。它们的对象都是一定地质作用的产物,因此地质学不可避免要对地球在历史中的演化进行研究。地球已有四十多亿年的历史。地质工作者所赖以进行研究的既不是文史资料,也不是文物,而是地壳几十亿年来形成的各类地质体。这样就产生一个识别准则问题,即依据什么标
The social function of earth science lies in ensuring the human society’s need for and preventing mineral resources and reducing the damage caused by natural disasters. Their objects are all products of certain geological effects. Therefore, geology is inevitably going to study the evolution of Earth in history. Earth has more than four billion years of history. Geological workers rely on both the study of historical and cultural data, nor is the relics, but the crust formed billions of years to form various types of geological body. This creates a problem of identification criteria, that is, on what basis