摘要
为了明确鄂尔多斯盆地东南部长7油层组沉积体系类型和沉积相展布特征,总结其沉积演化规律,以沉积学的基本原理和方法为指导,综合运用地球化学、盆地分析等理论和方法,通过野外露头、钻井、测井等资料的综合分析,认为鄂尔多斯盆地东南部长7油层组主要发育三角洲和湖泊沉积体系,可进一步划分为3类亚相,其中以三角洲前缘和深湖2种亚相为主.
To clear the sedimentary system types and sedimentary facies distribution charac- ters of Chang 7 oil formation of triassic Yanchang formation in Ordos basin, this paper con- clude sedimentary evolution rules and analysis the principal controls of accumulation and re- sources potential. Using fundamental and methods of sedimentology, theories and methods of geochemistry and basin analysis, combining with outcrops, drilling and logging data, this paper consider that Chang 7 oil formation mainly develop delta and lake depositional sys- tems. They are further sub-divided into 3 subfacies, in which delta front and deep lake facies are majority.
出处
《陕西科技大学学报（自然科学版）》
2012年第1期106-110,121,共6页
Journal of Shaanxi University of Science & Technology
基金
陕西省教育厅专项科研计划项目(2010JK919)
关键词
延长组
沉积相
长7油层组
鄂尔多斯盆地
triassic Yanchang formation
sedimentary facies
Ch,ang 7 oil formation
Ordosbasin
