中文摘要：

塔里木盆地卡塔克隆起南坡是否发育类似于北坡I号带坡折带的良里塔格组礁滩相是值得关注的基础地质问题。该文对中2井良里塔格组取心段进行了沉积亚（微）相详细分析。总结了含生屑藻团粒的粒泥灰岩、苔藓虫及四分珊瑚格架岩或障积岩等6个亚相和礁—滩、（礁）—滩—丘、粒屑滩、滩—（藻）席、灰泥丘—（藻）席、藻席—低能带6种沉积亚相组合;自下而上,4个取心段由一个向上变深、一个震荡和2个总体向上变浅的沉积过程组成,前三回次表现为粒屑滩、灰泥丘（藻席）、骨架礁亚相的多旋回垂向组合,以高位进积滩（礁）相为主和海侵期退积的台地滩（礁）—台地沉积为主。

英文摘要：

It is a basic geologic issue whether the Lianglitage Formation of the Upper Ordovician,southern margin of Ketake Uplift,Tarim Basin,is or not consists of sedimentary assemblage of reef-shoal,just likely to counterparts that occurs in northern margin of Ketake Uplift.Based on the microfacies analysis of carbonate rocks in the cored intervals of Lianglitage Formation in Well Zhong-2,six microfacies records of bioclastic-bearing algal pellet micritic,bryozoans and coralline framestone,bindstone,bafflestone have been recognized,as well as of six major stacking patterns of reef-shoal,reef-shoal-mound,coarse pellet shoal,beach-algal mats,algal or bioherm mound-algal mats,algal mats-subtidal low energy.From lower to upper cored intervals of Lianglitage Formation,the vertical facies distribution are respectively indicative of a gradual deepening trend,a sea-leval fluctuation and two shallowing upward succession carbonate cycles,and account for a serial of stacking pattern of pellet shoal,algal or bioherm mound and reef framestone in the first three cored intervals,with the prominent of highstand progressive system tracts of reef-beach and retrograde terrace reef-shoal developed during sea-level rising period.