川中南部栖霞—茅口组沉积相特征及滩相展布  

Sedimentary-facies Features and ShoalFacies Distribution of Xixia- Maokou Formations, South of Central Sichuan Basin

作　　者：钱程[1] 赵少泽 郭磊[1] 纪佳[1] 

机构地区：[1]成都理工大学能源学院,四川成都610059

出　　处：《天然气技术与经济》2015年第6期9-12,81,共4页Natural Gas Technology and Economy

摘　　要：以前人对四川盆地中部中二叠统栖霞—茅口组研究为基础,结合野外露头、钻井、测井及岩心薄片资料,对研究区沉积相特征进行分析,认为研究区总体发育缓坡型碳酸盐岩台地沉积,进一步细分为浅水缓坡台地和深水缓坡台地两个亚相类型。其中,浅水缓坡台地发育台内滩,利用地震相特征,对研究区内台内滩地震反射构型和结构进行了精细刻画,结合单井沉积相分析,确定发育在浅水缓坡台地相之上的台内滩的平面展布特征。Based on the previous research on the middle Permian Xixia- Maokou formations, central Sichuan Basin, combining some data from outcrop, drilling, well logging, and core analysis and thin-section identification, we analyzed the sedimentary-facies features in the study area. Results show that this area is wholly developed by gentle-slope carbonate platform, which can be subdivided into shallow- water and deep- water gentle- slope platforms. The shallow-water platform is developed by platform shoal. This study implements a fine description of seismic reflection framework and structure for this platform shoal. In addition, its planar distribution features are summed up.

关 键 词：四川盆地 栖霞组 茅口组 台内滩 

分 类 号：P618.13[天文地球—矿床学]