Late Neoproterozoic stratigraphic sequence and large-scale sedimentary mineralization in South China during the Nanhua interglacial-post glacial periods

This paper summarized research progress on the late Neoproterozoic stratigraphic division between the western margin of the Yangtze block and the South China rift system. Based on regional index strata, sedimentary and sedimentary mineralization events, and isotopic dating data, previously controversial “Banxi stage” stratigraphy, bottom margin of the Nanhua System, stratigraphy of the Nanhua ice age, as well as the Proterozoic structure, rock, stratigraphic age and sequence along the Wuyi-Yunkai area were further compared and classified. Large-scale sedimentary mineralization during the interglacial and post glacial periods, which resulted in the formation of mineral deposits such as Fe, Mn, P, talc, and shale gas and black carbonaceous shale(graphite), was also determined. Constraint effect of regional geological structure, sedimentation and snowball events, as well as climate environment on the regularity of sedimentary mineralization was analyzed in this study.