贵州印江—松桃地区含锰岩系及南华系早期沉积环境演化

Manganese Bearing Series and Early Sedimentary Environment in Nanhua Period in Yinjiang-Songtao Area of Guizhou

本文通过对印江-松桃地区南华系早期铁丝坳组-大塘坡组一段地层特征研究,概略分析了这一时期的沉积环境及其演化规律,对含锰岩系特征及其变化规律进行了初步的总结,大体上划分了三种沉积微相,即盆地沉陷中心喷水口、盆地沉陷中心喷水口外围和水下隆起带。

early Nanhua analyzed, the were divided： In this period paper, by the characteristic study of a stratum of Tiesiao formation - Datangpo formation, in Yinjiang -Songtao area, the sedimentary environment and its evolution regulation was Manganese bearing series and its change law was summarized, three sedimentary micro- facies central water jet of basin subsidence, periphery central water jet of basin subsidence and under-water uplift zone.