塔中地区东河塘组沉积微相分析  

Sedimentary Micro-fades Analysis of East Hetang Formation in Tazhong Area

作　　者：韩保清[1] 竺知新 黄伟传[3] 

机构地区：[1]中原油田分公司西部勘探经理部,河南濮阳457001 [2]中石化勘探开发科学研究院西部分院,新疆乌鲁木齐830011 [3]中原油田分公司勘探开发科学研究院,河南濮阳457001

出　　处：《江汉石油学院学报》2003年第4期31-32,共2页Journal of Jianghan Petroleum Institute

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.

关 键 词：东河塘组 塔里木盆地 沉积岩 沉积相 

分 类 号：P512.2[天文地球—地质学]