子长-延川地区奥陶系马家沟组层序地层学研究  

Sequence Stratigraphic Study of the Majiagou Formation of the Ordovician System in the Zichang-Yanchuan Area

作　　者：王猛 贾方方 蒋立宏 高其宇 郭田超 Wang Meng;Jia Fangfang;Jiang Lihong;Gao Qiyu;Guo Tianchao(Yanchang Gas Field Production Plant 5,Yan'an 717300)

机构地区：[1]延长气田采气五厂,陕西延安717300

出　　处：《石化技术》2024年第9期196-198,共3页Petrochemical Industry Technology

摘　　要：基于前人的研究成果,提出了一套层序地层的划分方案。根据该方案,研究区的奥陶系地层被细分为两个超层序和八个三级层序。马家沟组由OSQ4-OSQ85个层序组成,除OSQ4为Ⅰ型层序界面外,其它均为Ⅱ型层序界面。In this study,a sequence stratigraphic division scheme is proposed based on the previous research results.According to the scheme,the Ordovician strata in the study area are subdivided into two supersequences and eight tertiary sequences.The Majiagou Formation is composed of five sequences,OSQ4-OSQ8,with the exception of OSQ4,which is a type I sequence interface,and the others are a type II sequence interface.

关 键 词：马家沟组 层序界面 层序格架 成因分析 

分 类 号：P618.13[天文地球—矿床学]