双桥山群的再讨论

Rediscuss of Shuanqiaoshan group

通过对江西西北部及安徽南部地区大面积分布的变质岩的研究,双桥山群仅分布在扬子板块修水—祁门构造单元内,而且是一套史密斯地层。双桥山群可划分为横涌组、计林组、安乐林组及修水组。而不存在非史密斯地层障公山(岩)组。非史密斯地层仅发育于江南混杂岩带中。双桥山群既不同于溪口岩群,也不同于万年群,更不同于张村岩群。

The author with many other geologists have done research on metamorphic rocks, which distribute intensively over the northeast of Jiangxi and the south Anhui . They consider that Shuanqiaoshan group only distributes in Yangtz plate,belonging to Xiushui-Qimen structural unit as a set of Smith stratum. The Shuanqiaoshan group can be divided into four groups, Hengyong group, Jilin group, Anlelin group and Xiushui group. Non-Smith stratum, Zhanggongshan groups did not exist in Shuangqiaoshan group. Non-Smith stratum only develops in migrnat.ite complex belt of Jiangnan. The Shuanqiaoshan group is different from the Xikou group,Wannian group and Zhangcun group.