东营凹陷滨南地区Es3下亚段湖相浊积岩精细物源研究  

Lacustrine Turbidite Accurate Provenance Research of Lower ES3 in Binnan Area Dongying

作　　者：徐冠华[1] 蔡进功[1] 郑德顺[2] 杨兆刚[3] 

机构地区：[1]同济大学海洋地质国家重点实验室,上海200092 [2]河南理工大学资环学院,焦作454000 [3]胜利油田滨南采油厂,滨州256600

出　　处：《科学技术与工程》2011年第36期8961-8966,共6页Science Technology and Engineering

基　　金：国家自然基金(40902033)资助

摘　　要：针对滨县凸起南坡沙三段浊积岩物源研究薄弱的问题,通过查阅前人的研究,利用岩心样品化验数据及钻井、测井资料,通过稀土元素分析法、砂岩组分分析法、沉积法三个方面进行精细物源分析。稀土元素分析结果结合岩屑特征的认识,认为研究区的母岩主要为变质岩,也存在少量火山岩母岩和沉积岩母岩。通过分析样品平面分布特征,结合砂体厚度以及砂泥比等直线图的认识,认为研究区存在两个主要物源方向,并对每个沉积方向的影响范围和强度变化进行了综合分析和厘定。研究区物源的研究有利于正确认识浊积岩的沉积特征,划分浊流沉积体系。There are very few studies on provenance research in Binnan Area.REE character,debris combination analysis,sandstone thickness and sandstone percent which come from published papers,core observation and core samples,logging data and well data are used to solve the problem.Through the analysis of the debris character and REE character,gneiss is confirmed as the main parent rocks,magmatic rock and sedimentary rock are also believed parent rocks in lower ES3.After the analysis of the distribution of samples in surface and refering to sandstone thickness and sandstone percent contour map characteristic,six sedimentation directions are believed existence in research area and the influence area and intensity changes of each sedimentation direction are analyzed synthetically and deter-mined.The research of provenance is useful to correctly understand the characteristics of sediments and discriminate sedimentary system.

关 键 词：物源 稀土元素特征 岩屑组合 砂体厚度及砂泥比 浊积岩 滨南地区 

分 类 号：P613[天文地球—矿床学]