鄂尔多斯盆地西南部上古生界层序地层和沉积体系特征  

THE UPPER PALEOZOIC SEQUENCE STRATIGRAPHIC AND SEDIMENTARY SYSTEM CHARACTERISTICS OF THE SOUTHWEST ORDOS BASIN

作　　者：朱筱敏[1] 康安[1] 王贵文[1] 王力清 

机构地区：[1]石油大学地球科学系,北京102249

出　　处：《石油实验地质》2002年第4期327-333,共7页Petroleum Geology & Experiment

摘　　要：该文在现代沉积学和层序地层学理论的指导下 ,综合利用露头、钻井、测井和地震资料 ,以层序体系域边界特征为划分依据 ,将研究区上石炭统至二叠系划分成 3个沉积层序 ,并确定了低位、水进和高位体系域的发育情况 ,明确了滨海沼泽、河流、三角洲、滨浅湖和滩坝等 5种沉积体系的特征和展布 。Guided by the theories of modern sedimentology and sequence stratigraphy, comprehensively using the outcrop, drilling, logging and seismic data and based on the boundary characteristics of the sequence system domains, the Upper Carboniferous Permian strata of the study area were divided into three sedimentary sequences. The development information of the lowstand, transgressive and highstand system domains was ascertained, and the characteristics and distribution of seamarsh, river, delta, shore shallow lake and beach dam these five sedimentary systems were indicated. At last, the favorable developing sequences of source rocks, reservoirs and covers and areas for exploration were suggested.

关 键 词：油气地质 鄂尔多斯盆地 西南站 上古生界 层序地层 沉积体系 特征 石炭系 二叠系 

分 类 号：P618.130.2[天文地球—矿床学] TE12[天文地球—地质学]