鄂尔多斯盆地三叠系延长组层序地层特征新认识NEW SEQUENCE STRATIGRAPHIC OBSERVATIONS OF THETRIASSIC YANCHANG FORMATION IN THE ORDOS BASIN
张凤奎,张忠义,张林
摘要(Abstract)：
在现代沉积学和层序地层学理论的指导下,综合利用沉积环境标志、露头剖面、岩芯、测井、地震和古生物等资料,通过层序界面的识别和划分,认为鄂尔多斯盆地三叠系延长组划分为5个三级沉积层序更为合理。根据延长组旋回特征和体系域的发育情况,分析了沉积旋回的边界及演化特征和层序对延长组生储盖层配置关系的控制作用。
关键词(KeyWords)： 层序地层;旋回;体系域;延长组;三叠系;鄂尔多斯盆地;内蒙古
基金项目(Foundation): 中国石油“鄂尔多斯盆地石油预探”项目资助
作者(Author): 张凤奎,张忠义,张林
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