Paleogeography Character and Geological Significance of Nanhua Period Lithofacies in Hu'nan-Guizhou-Guangxi Adjoining Area
The purpose of this article is to find a continuous,complete,and research-worthy Nanhuan section and to promote the establishment of its System.In this paper,based on the data obtained from the obser-vation and research of the main sections of the Nanhuan in Hu'nan-Guizhou-Guangxi border area,the types of sedimentary facies and their distribution characteristics,12 types of sedimentary facies are classified.The paleo-geographic environment of the main stages of the Nanhuan Period has been inverted from this.It is concluded that the northwestern part of the south China Yangtze area is paleocontinent and the southeast is the rift basin during the Nanhuan Period.The two glacial periods(beginning and ending)continuous and complete sedimenta-tion existed only in the transitional shallow sea areas between paleocontinent and basin,that is,the current junc-tion of Hunan Guizhou and Guangxi.The continuous and complete Nanhuan System section with research value can only be found in this area.
Adjoining area of Hunan,Guizhou and GuangxiNanhuan PeriodSedimentary faciesPaleo-geography
万方数据
维普
