塔里木盆地柯巴麦地区寒武纪层序模式及意义  

Cambrian Sequence Model and Its Significance in Kebamai area,Tarim Basin

作　　者：熊锐 傅恒[1] 王文博 谢才铸 张志南 刘鑫北 王荣刚 周杨[1] Xiong Rui;Fu Heng;WangWenbo;Xie Caizhu;Zhang Zhinan;Liu Xingbei;Wang Ronggang;Zhou Yang(College of Energy Resources,Chengdu University of Technology,Chengdu,Sichuan,610059,China)

机构地区：[1]成都理工大学,四川成都610059

出　　处：《新疆地质》2023年第4期491-503,共13页Xinjiang Geology

摘　　要：以层序地层学理论为指导,据全球海平面变化,结合钻井、野外露头及地震资料,将柯坪-巴楚-麦盖提斜坡地区寒武系碳酸盐岩划分为3个二级层序,24个三级层序。总结每个层序界面及层序内部特征,建立柯巴麦寒武系层序地层格架,揭示层序内体系域构成特征。提出柯巴麦地区寒武系碳酸盐岩发育3种层序模式—低位、海侵与高位模式,分析其控制因素。将寒武系沉积模式归纳为2种:碎屑岩沉积模式和碳酸盐台地-蒸发台地沉积模式,为塔西南地区进一步油气勘探提供新思路。Guided by the theory of sequence stratigraphy,according to global sea level changes,based on the analysis of drilling,outcrops and seismic data,the Cambrian Carbonate Rocks in the Keping-Bachu-Maigaiti slope area are divided into three second-order sequences and twenty-four third-order sequences.The characteristics of each sequence boundary and sequence interior are summarized,the Cambrian sequence stratigraphic framework is established,and the characteristics of system tracts in the sequence are revealed.Three sequence models of Cambrian carbonate rocks in Kebamai area are proposed,including The LST,TST and HST and their controlling factors in the study are analyzed.Besides,the Cambrian sedimentary models can be divided into two types,including clastic rock sedimentary and carbonate platform-evaporation platform sedimentary,which provide new ideas for further oil and gas exploration in southwest Tarim Basin.

关 键 词：塔里木盆地 寒武纪 层序地层 沉积模式 

分 类 号：P534.41[天文地球—古生物学与地层学]