塔河东南斜坡区T_7~4面断裂期次划分  

Fracture Stages of the Middle-Lower Ordovician Superface in Tahe Southeast Slope Area

作　　者：何志强[1] 邓杨勇 姚城[1] 朱永源[1] 袁立[1] 

机构地区：[1]成都理工大学,成都610059 [2]中海石油(中国)有限公司湛江分公司研究院,湛江524057

出　　处：《重庆科技学院学报（自然科学版）》2012年第6期1-4,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家重大专项(2008ZX05005-002-008HZ)

摘　　要：为了研究塔河油田东南斜坡区奥陶系断裂对岩溶作用的影响,通过岩芯观察与应力场分析相结合的方法对本区中下奥陶统顶面(T74面)进行断裂期次划分。此次研究将T74面断裂划分为加里东中期、海西早期和海西晚期3期断裂。其中,海西早期比加里东中期断裂发育,海西晚期断裂最为发育。In order to study the influence that the Ordovician fracture in Tahe southeast slope area made to the karstification,the fracture stages of the Middle-Lower Ordovician superface are divided through the combination of the core observation and stress field analysis.It is divided into three stages including the Middle Caledonian,the early Hercynian and the last Hercynian.Meanwhile,the fracture develops better in the early Hercynian than the Middle Caledonian,and the fracture develops best in the last Hercynian.

关 键 词：断裂 形成期次 奥陶系 塔河东南斜坡区 

分 类 号：P618.13[天文地球—矿床学]