一.中国大地构造的轮廓从古地理以及各期岩层的变动和变化来看,中国大陆在震旦纪以前,已有比较稳定地块的存在。这些地块是中国大陆的骨干,也可说是中国大陆发展的重要基础。因为它们控制了邻近地槽的发展,同时也因邻近地槽的变化而本身受到影 I. Outline of the Geotectonic Structure of China From the paleogeography and the changes and changes of rock formations in various periods, mainland China had relatively stable plots before the Sinian. These plots are the backbone of mainland China and can also be regarded as an important foundation for the development of mainland China. Because they control the development of adjacent troughs and are themselves affected by changes in the adjacent troughs