一、古老岩系时代和“华夏古陆”的形成时期中国东南部,迄今沒有发現可靠的太古界。根据肖序常、任紀舜的观察和江西地貭工作者詳細地貭制图工作結果,已經充分証明武功山片麻岩是侵入于元古界演吉岭羣的花崗岩,九岭片岩是因花崗岩侵入而造成的变貭岩(图1)。广东地貭工作者近年来进行的 First, the ancient rock age and the formation of “Huaxia ancient land” in southeastern China, so far no reliable Archean world. According to Xiao Chang, Ren Jishun’s observation and the results of detailed mapping work conducted by workers in Jiangxi Province, it has been fully proved that the Wugongshan gneiss is a granite intruded into the Yiling Group in the Proterozoic. The Jiuling schist is caused by intrusion of granite Change 貭 rock (Figure 1). Guangdong ground workers in recent years carried out