江西瑞金—福建长汀地区青白口纪—奥陶纪地层对比分析

摘要

Comparative analysis of the lithology characteristics of Qingbaikou Period-Ordovician metamorphic strata in Jiangxi Ruijin-Fujian Changitng Region is done.The study results indicated that:①quartzite with the shapes of thick layer,striation and ribbon can be taken as the iconic formation of Sinian and Cambrian in South China;②magnetite(mineralized)layer and the layers containing carbon,silicon and gravel can be regarded as the iconic formation of the strata division and comparative analysis of the glacier events in Nanhua Period;③Qingbaikou period strata is characterized by upper black color and lower white color,the indicator of strata division and comparative analysis is significant.The above study results related to the strata characteristics of Jiangxi Ruijin-Fujian Changting Region can provide some valuable reference for the further study of the strata lithology characteristics and the mineral prospecting work in the region.%对江西瑞金—福建长汀地区青白口纪—奥陶纪变质地层岩性特征进行了详细的对比分析,研究表明:①厚层状—条纹条带状石英岩可以作为华南震旦系与寒武系分界的标志层;②磁铁矿(化)层配合含炭、含硅、含砾等层位为全球南华纪冰川事件地层划分和对比的标志;③青白口系表现为下黑上白的特征,地层划分对比标志明显.分析结果可为该区后续地层岩性研究及矿产勘探工作提供可靠依据.