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全球环境的演变可包括三个阶段:(1)大约在3900 Ma前,即产生水循环时,地球的环境开始发生急剧的变化;(2)直到1500 Ma前,环境的变化是缓慢而平稳的,此时,地表条件或多或少地与现代相似;(3)从1500 Ma到现在,地表状况在一个平均状态附近波动.最近1500 Ma的准周期性振荡式变化一直控制着地表生物地球动力作用,即全球水的均衡、剥蚀、沉积速率以及全球水-岩作用的地球化学行为,当然也控制着生物的主要演化阶段。
The evolution of the global environment can include three stages: (1) about 3900 Ma ago, when the water cycle was created, the environment of the earth began to undergo a drastic change; and (2) the environment changed slowly and steadily until 1500 Ma, At this time, the surface conditions are more or less similar to modern ones. (3) From 1500 Ma to the present, the surface conditions fluctuate around an average state. The quasi-periodic oscillatory changes of 1500 Ma have been controlling the surface biogeophysical forces , That is, the global water balance, erosion, sedimentation rate and global water-rock geochemical behavior, of course, also control the main evolutionary stages of the organism.