下元古界八都群是中国东南大陆边缘最古老的变质岩系之一，为早前寒武纪浙闽克拉通的主要组成部分。
The lower Proterozoic Badu Group is one of the oldest metamorphic rock series in the continental margin of Southeast China , and is an integral part of the early Precambrian Zhejiang-Fujian craton .
纪通