南昌地区震旦纪—早寒武世地层的发现

DISCOVERY OF SINIAN-EARLY CAMBRIAN STRATA NEAR NANCHANG, JIANGXI PROVINCE

本文记述了在江西省南昌附近所发现的一套碳硅泥岩-细碧岩组成的地层。据地层和古生物资料,其时代应归属于震旦纪—早寒武世。这套地层向南延伸有可能跨越江南台隆和华南褶皱系两大地质构造单元的界线。笔者在对比了界线两侧的火山岩特征后,认为震旦纪—早寒武世,两大地质构造单元的界线可能是逐渐过渡的。

In the area near Nanehang, Jiangxi Province, a Sinian—Early Cambrian carbonaceous-siliceous-pelite-spilite formation has been recognized based on stratigraphical and paleontological data. As this formation may possibly extend southwards cross the boundary between the Jiarignan platform uplift and the South China fold system, there might not be an abrupt change between the two major geological units during Sinian and Early Cambrian times.