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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。
This article describes a set of carbonaceous mudstone-spilite found near Nanchang, Jiangxi Province. According to stratigraphic and paleontological data, its era should be attributed to the Sinian - Early Cambrian. The extension of the strata to the south may cross the boundary line between the two major geological units of southern Taiwanian and South China folds. After comparing the characteristics of volcanic rocks on both sides of the boundary, the author thinks that Sinian - Early Cambrian may have a gradual transition between the two major geological units.