闽西南地区南华纪—震旦纪岩石地层的划分与对比

Lithostratigraphic division and correlation of the Nanhuaan-Sinian Periods in southwestern Fujian

摘要: 提要：福建西南部长汀、上杭一带广泛发育一套海相砂、泥质及硅质沉积的浅变质岩系，经过1∶25万瑞金市幅区域地质调查，在证实“丁屋岭砾岩”的时代为晚泥盆世而从浅变质岩系中划分出去后，笔者将整合于早—中寒武世林田组之下的浅变质岩系，自下而上划分为姜畲坑组、赖坑组、南岩组和黄连组。

Abstract: Abstract：A low-grade metamorphic series composed of marine sandy, muddy and siliceous sediment is widespread in Changting and Shanghang, southwestern Fujian. According to the regional geological survey of the 1：250000 Ruijin Sheet, the “Dingwuling conglomerate” is determined to be of Late Devonian age and thus separated from the low-grade metamorphic series. In this paper, the low-grade metamorphic series that conformably underlies the Lower-Mid Cambrian Lintian Formation is divided into the Jiangshekeng Formation，Laikeng Formation，Nanyan Formation and Huanglian Formation.