塔里木盆地中—下奥陶统层序地层研究  

The Study on Lower-Middle Ordorician Stratigraphic Sequence in Tarim Basin

作　　者：徐梅桂[1] 贺勇[1] 范筱聪[1] 李映涛[1] 刘亿[1] 何洧 

机构地区：[1]成都理工大学油气藏地质及开发工程国家重点实验室,四川成都610059

出　　处：《新疆地质》2012年第4期404-410,共7页Xinjiang Geology

基　　金：中国石化西北分公司勘探开发研究院协助项目(KY-S-2008-086)"塔里木盆地下古生界多类型储集体形成与成藏条件研究-塔里木盆地中央隆起带O-Z储集体形成机理;主控因素;有利储集体展布及成藏条件研究"部分成果联合资助

摘　　要：运用地震、测井等手段,结合岩石学、生物地层学地层对比方法,将塔里木盆地中—下奥陶统层序划分为1个二级层序(SSQ6),4个三级层序:SQ1、SQ2、SQ3、SQ4。对层序地层、沉积相特征研究发现,构造运动、海平面升降和古气候变化为塔里木盆地中—下奥陶统层序发育主要控制因素。Dividing the sequence of Lower-middle Ordorician in Tarim basin by using seismic and logging,combining with the method of stratigraphic correlation based on lithostratigraphy, biostratigraphy.One second-order sequence（SSQ6）, four third-order sequences（SQ1, SQ2, SQ3, SQ4）have been distinguished in Lower-middle Ordorician,the features of sequence stratigraphy and facies are analyzed in this paper.The research shows that tectonic movement,sea level eustacy and paleoclimate are the major controlling factors about sequence evolution of Lower-middle Ordorician stratigraphic sequence,Tarim basin.

关 键 词：塔里木盆地 奥陶系 层序界面 层序地层 沉积相 层序演化 

分 类 号：P618.13[天文地球—矿床学]