通过对中国大陆铅同位素填图和块体边界元古界基底地球化学特征研究 ,确定了华夏、扬子、华北、辽胶、中朝、中蒙古、佳木等块体边缘的地球化学急变带 .从现已揭示的超大型矿床和主要成矿带分布规律表明 ,地球化学急变带与超大型矿床的产出存在着密切的关系 .地球化学急变带两侧存在分属不同块体的中元古代基底 ,火山作用与热水沉积广泛发育 ,并存在晋宁期至中新生代的动力变质和岩浆作用改造成矿 .地球物理证据表明两侧岩石圈结构也存在明显差异 Through the study of lead isotope mapping and the Proterozoic basement geochemistry in the block boundary of China, the geochemical extensional zones of the blocks such as Huaxia, Yangtze, North China, Liaojiao, China, North Korea, Middle Mongolia and Jiamusi blocks were determined. The distribution of super-large deposits and major metallogenic belts revealed now shows that there is a close relationship between the geochemical extensional zone and the output of super-large deposits, and the Mesozoic Proterozoic belonged to different blocks on both sides of the geochemical strike zone The basement, volcanism and hydrothermal deposition are widely developed, and there are dynamic metamorphism and magmatic transformation from the Jinning Period to the Mesozoic Cenozoic. Mineralogical evidence shows that there are also significant differences in the lithosphere structure on both sides