摘要
通过对塔中地区东河塘组的沉积背景及地层岩性特征分析,认为该层总体上是湖泊相退积型三角洲亚相-滨岸亚相沉积。退积型三角洲亚相可划分为分支河道微相、河口砂坝微相和前缘席状砂微相三类沉积微相;滨岸亚相主要发育前滨微相和临滨微相。
Through analysis of the sedimentary background of east Hetang Formation and stratigraphic lithologic characteristics in Tazhong area, it is considered that the stratum is a deposit of lake fades retrogradation delta subfacies-longshore subfacies. The retrogra-dation delta subfacies can be divided into 3 sedimentary microfacies such as branch channel microfaices, channel mouth bar microfacies and frontal sand sheet microfacies, foreshore microfacies and shoreface microfacies are mainly developed in the longshore subfacies.
出处
《江汉石油学院学报》
EI
CSCD
北大核心
2003年第4期31-32,共2页
Journal of Jianghan Petroleum Institute
关键词
东河塘组
塔里木盆地
沉积岩
沉积相
east Hetang Formation
Tarim Basin
sedimentary rock
sedimentary facies
