The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit
later.
We apologize for any inconvenience caused
Sedimentary facies in the first member of the Upper Triassic Xujiahe Formation in Hexidong, Beibei, Chongqing
Author(s): JIN Min-dong, LIU Xiao-hong, ZHANG Jin-wu, DU Zi-qian, DING Ying-zhan, SHU Yun
Pages: 37-
43
Year: 2012
Issue:
2
Journal: Sedimentary Geology and Tethyan Geology
Keyword: 重庆北碚; 须家河组一段; 浅水三角洲; 沉积相;
Abstract: 对重庆北碚上三叠统须家河组一段地层特征、岩性特征、沉积相及演化规律进行了系统研究.研究区须一段以灰色、褐灰色细砂岩及深灰色、灰黑色页岩、粉砂质泥(页)岩夹薄煤层为主,见炭化植物碎片及菱铁矿结核,砂岩类型主要为长石岩屑石英砂岩及长石岩屑砂岩,大型槽状交错层理、平行层理、水平层理及沙纹层理发育.综合分析认为研究区须一段属浅水三角洲沉积环境,包括三角洲平原、三角洲前缘和前三角洲3种亚相,可进一步划分出水上(水下)分支河道、沼泽、支流间湾、河口砂坝等沉积微相.其垂向序列反映了沉积环境三角洲平原-三角洲前缘-前三角洲-三角洲平原的演化过程.
Citations
No citation found
Related Articles
No related articles found