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构造过程的作用方式是随时间而变化的,它是按长周期旋迴非均质地发展的。自晚太古宙萌地台形成起,在整个元古宙时期(25—5.7亿年前),大陆的增长经历了几个阶段的克拉通化和紧接着的解体,通过新生的活动带系统而发展,最后又相继封闭固结,到元古宙末形成了更大、更稳定的陆块,即元古宙末的超级大陆。每个演化阶段都有其特定的构造体制和构造组合。根据上述,本文将中国元古宙划分为五个构造演化阶段或旋迴。
The mode of action of the tectonic process changes over time, and it is developed heterogeneously by long cycles. Since the Late Archean Mengtai formation, throughout the Proterozoic period (2.5-5.7 billion years ago), the growth of the Mainland experienced several stages of cratonization and the subsequent disintegration, which was developed through the nascent activity belt system , And finally closed and consolidated one after another, to form a larger and more stable land mass at the end of the Proterozoic, namely the supercontinent at the end of Proterozoic. Each stage of evolution has its own specific structural system and structural combination. Based on the above, this paper divides the Chinese Proterozoic into five tectonic evolution stages or cycles.