摘要
冀中坳陷马西地区是东部典型复杂断块小型湖盆,综合利用岩心、地质、测井及地震等资料,对冀中坳陷马西地区古近系东营组沉积地层进行了全面系统的研究。利用高分辨率层序地层学原理对其进行等时地层划分和对比,认为研究区东营组为半个二级旋回(基准面下降半旋回),在此二级旋回内部划分为3个三级旋回。马西地区古近系东营组发育有三角洲、湖泊、滩坝和河流等4类沉积体系,分析并论述各类沉积体系在研究区的亚相类型及其特征,系统阐述了不同阶段的平面沉积相类型及其分布规律,总结了垂向上沉积体系的演化。
Maxi Region of Jizhong Depression was a typical complicate fault-basin. Eogene Dongying Formation in Maxi Region of Jizhong Sag was researched completely and systematically by using core data geology, log, seismic data and so on comprehensively. Based on the concept of sequence stratigraphic methodologies, the cyclic sequence of the third segment of Shahejie Formation in the age of Paleogene in Maxi subsag, Raoyang Sag was classified and correlated in detail, and the strata contrast frameworks of cyclic sequence is defined and established. Based on the synthetical analysis the geological, log, seismic and core analysis data, it is believed that 4 types of sedimentary system are developed in this area in upper-middle sub-segment of Shahejie Formation of Paleogene. That is, delta, lacustrine, turbidity current and beach and dam sedimentary system. Subfacies and vertical evolution of depositional system is discussed in detail.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2009年第3期171-174,共4页
Journal of Oil and Gas Technology
基金
中国石油天然气股份有限公司重点科技攻关项目(2001BA605A-08)
关键词
马西洼槽
层序地层
沉积体系
沉积相
沉积演化
sequence stratigraphy
maxi subsag
depositional system
sedimentary subfacies
作者简介
李博（1969-），男，1991年大学毕业，高级工程师，博士生，现主要从事油气成藏方面的研究工作。
