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黔桂地区石炭纪 10个层序中的S1、S3、S6、S9、S10 5个Ⅰ型层序底界面和S10 层序顶界面具有特征的沉积记录 ,表现为岩性岩相的突变 ,侵蚀平行不整合和上超不整合发育 ,风化残积硅铝、铁铝和铝土质粘土层、残积角砾岩、淡水成岩相及白云岩化广泛发育 ,生物化石组合的巨大变化和C、O、Sr同位素值的明显差异。这些Ⅰ型界面是由不同的成因事件形成的。研究结果表明 ,S1底界面对应的是构造事件 ,即柳江运动 ;S10 顶界面反映的构造事件是黔桂运动 ;S3、S6、S9、S10 底界面均是由海平面下降事件形成的。
The sedimentary records of S1 type, S3 type, S6 type, S9 type and S10 type in the ten sequences of the Carboniferous sequence in Guizhou and Guangxi Provinces are characterized by sedimentary records characterized by abrupt changes and erosion of lithologic facies Paleointegration and over-unconformity development, weathered residual Si-Al, Fe-Al and Al-clay layers, residual breccias, freshwater diagenetic facies and dolomitization are widely developed. Significant differences in isotopic values. These Type I interfaces are formed by different causative events. The results show that the S1 bottom interface corresponds to the tectonic event, that is, the Liujiang movement. The tectonic event reflected by the top interface of S10 is the Qian-Gui movement. The bottom interfaces of S3, S6, S9 and S10 are formed by the sea level descent events.