一、引言近年来,由于野外地质资料的不断累积和科学家们辛勤的劳动,中国地质构造的轮廓已渐清楚。许多关键性见解的提出,对中国大构造架的阐明起了一定的指导作用。如王鸿桢确认鄂尔多斯、河淮及川黔三个陆核的存在,并注意到陆核边缘往往是前震旦 I. INTRODUCTION In recent years, due to the continuous accumulation of field geological data and the hard work of scientists, the outline of China’s geological structure has become clear. The introduction of many key insights has played a guiding role in clarifying China’s major structural planes. For instance, Wang Hongzhen confirmed the existence of three core nuclei such as Erdos, He-Huai, and Chuan-Qian, and noticed that the fringe of the nucleus is often the former Sinian