成都理工大学学报(自然科学版)2012,Vol.39Issue(6):643-650,8.
黔南—桂中地区二叠系沉积体系展布规律及演化
Sedimentary system distribution and evolution of Permian in South Guizhou-Middle Guangxi, China
摘要
Abstract
Based on the data of outcrop measurements and drilling wells and combined with the determination of thin sections, the paper analyzes the microfacies and divides Permian into 2 super sequences and 12 third-order sequences. The coast, carbonate plateau and platformal basin sedimentary systems are recognized after studying the sequence stratigraphy, sedimentary system and evolution of palaeogeography in South Guizhou and Middle Guangxi. Carbonate plateau facies is dominant in South Guizhou and platform-basin facies in Middle Guangxi. The evolution of palaeogeography in the stratigraphic framework shows that South Guizhou was a denuded area because of the affections of sealeyel changing and structure uplift and Middle Guangxi was a alternate pattern of plateau and uplift in Early Permian; Carbonate plateau dominated in South Guizhou and the alternation of plateau and uplift did in Middle Guangxi because of the rising of sealevel in Middle Permian; The study area uplifted and exposed because of the Dongwu tectonic movement in the early phase of Late Permian; Carbonate plateau dominated in South Guizhou again and the alternation of plateau and uplift occurred again in Middle Guangxi because of transgression in the middle-late phase of Late Permian. The above basin structure evolution controls the reef facies distribution.关键词
黔南—桂中/二叠系/层序地层/沉积体系/古地理演化Key words
South Guizhou/ Middle Guangxi/ Permian/ sedimentary system/ sequence stratigraphy/ palaeogeographic evolution分类
能源科技引用本文复制引用
张成弓,陈洪德,陈安清,林良彪,隆轲,杨帅..黔南—桂中地区二叠系沉积体系展布规律及演化[J].成都理工大学学报(自然科学版),2012,39(6):643-650,8.基金项目
国家自然科学基金重点项目(40739901) (40739901)