石油实验地质2018，Vol.40Issue(3)：303-314,12.DOI:10.11781/sysydz201803303
下扬子区中新生代沿江盆地群的盆地结构与沉积特征
Structure and sedimentary characteristics of the Meso-Cenozoic basin group along the Yangtze River in the Lower Yangtze region
摘要
Abstract
The basin group along the Yangtze River is an important part of the Meso-Cenozoic petroliferous basins in the Lower Yangtze region,which is also an important window for the study of the structure and tectono-sedimentary evolution of the Meso-Cenozoic basins in East China.There are nine relatively independent faulted basins from west to east in the Yangtze River's middle and lower reaches,including Poyang,Qianshan,Wanjiang,Quanjiao,Wuwei, Jurong-Nanling,Changzhou-Xuancheng,Liyang and Pinghu basins,which comprise a basin system or group in the plane,named the Lower Yangtze basin group.Sedimentary filling in the basins was divided into two stages including faulting from the Late Cretaceous to the Paleogene,and depression from the Neogene to the Quaternary. The former stage is characterized by the sedimentation of fluviolacustrine and delta facies,while the latter stage is marked by the deposition of fluvial facies. The fault basin system formed in the Late Oligocene, and a unified depression system formed in the Neogene along the Yangtze River.Due to the Neogene differential deformation,the basinal strata were differentially denuded,forming the modern geological setting of the sedimentary basins.关键词
盆地结构/沉积特征/沿江盆地群/下扬子区Key words
basin structure/sedimentary characteristics/basin group along the Yangtze River/Lower Yangtze region分类
能源科技引用本文复制引用
徐曦,朱晓颖,单希鹏,肖梦楚,孙连浦,高顺莉..下扬子区中新生代沿江盆地群的盆地结构与沉积特征[J].石油实验地质,2018,40(3):303-314,12.基金项目
国家科技重大专项项目(2011ZX05023-003)资助. （2011ZX05023-003）
