开江—梁平海槽南段飞仙关组二段沉积相特征研究  

Research on the Sedimentary Characteristics of the Member 2 of Feixianguan Formation in the Southern of Kaijiang-Liangping Trough

作　　者：罗静[1] 胡红[1] 夏青松[1] 朱遂珲 王剑波[1] 

机构地区：[1]西南石油大学资源与环境学院,成都610500 [2]川西北气矿,四川绵阳621700

出　　处：《重庆科技学院学报（自然科学版）》2013年第2期22-26,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家重大专项(2011ZX05061)

摘　　要：通过野外露头和岩芯的精细观察描述,分析开江—梁平海槽南段飞仙关组二段的沉积微相类型及特征。认为该区飞仙关组二段处于海退时期,以开阔台地、局限台地和台地边缘为主,且鲕粒灰岩与泥晶灰岩互层出现,鲕滩在海槽的西南部开阔台地和台地边缘相带发育充分,向台地内部鲕滩的数量与规模缩减,其中台缘滩分布较广且厚度较大,局部可见台内滩。Through well logging data and log data,delicately observing and describing the outcropping and the rock cores,this paper analyzes the types and characteristics of the sendimentary microfacies of the Fei 2 member.The research shows that this area pertains to carbontite sedimentary system.And the Fei 2 member is formed by marine regression.Its sedimentary facies are primarily the open platform,restricted platform and plateu edge.Ooid limestone interbes with micrite limestone,furthermore ooid limestone primarily distributes to open platform and plateau edge in the southwest of trough.The number and scale gradually decreases toward the interal of plateau,plateau edge strand widely spreads and thickness is relatively great,partly presenting inner plateau strand.

关 键 词：开江—梁平海槽 飞二段 沉积相 

分 类 号：P618[天文地球—矿床学]