摘要
玛扎塔格断裂带的演化过程对塔里木盆地巴楚隆起和麦盖提斜坡油气成藏有着重要的控制作用.根据最新地震资料的精细解释和构造解析,分析了玛扎塔格断裂带的变形结构、样式和变形过程.玛扎塔格断裂带的变形分为上、中、下(深)3层结构,分别形成于不同时期.玛扎塔格断裂带变形的差异性主要体现在中层构造,从东往西控制中层构造发育的逆冲断层及其反冲断层的位移量不断加大,褶皱核部的剥蚀量也向西持续增加.玛扎塔格断裂带深部背斜构造存在发育盐下白云岩原生油气藏的可能,后期的变形没有破坏早期形成的深层背斜构造.玛扎塔格断裂带深部背斜构造的盐下白云岩是油气勘探的有利方向.
The evolution history of the Mazhatage fault belt is important for understanding the tectonic evolution and petroleum accumulation history of the Bachu uplift and Maigaiti slope in the Tarim basin.Based on detailed interpretation of the latest seismic data,the deformation structure and history of the Mazhatage fault belt are analyzed in this article.It is suggested that deformation of the Mazhatage fault belt could be divided into upper,middle and lower structures,formed at different times.Lateral variation of the Mazhatage mainly is reflected at its middle structure.The displacement of the thrust fault and its back thrusts that control the middle structure increased from east to west,led to the denudation at the core of fold also increased westwardly.The later deformation did not break the deep anticlinal trap.Thus,the Cambrian dolomite under the salt layer of deep anticline is a beneficial direction for oil-gas exploration in the Mazhatage fault area.
作者
谢会文
陈新伟
朱民
李龙江
王祥
陈汉林
程晓敢
Xie Huiwen Chen Xinwei Zhu Min Li Longjiang Wang Xiang Chen Hanlin Cheng Xiaogan(Exploration and Development Research Institute of Tarim Oilfield Company, PetroChina, Korla 841000, China School of Earth Sciences, Zhejiang University, Hangzhou 310027, China Geophysical Exploration Research Center, Geophysical Exploration Company, Chuanqing Drilling Engineering Co. Ltd., Chengdu 610213, China)
出处
《地球科学（中国地质大学学报）》
EI
CSCD
北大核心
2017年第9期1578-1589,共12页
Earth Science-Journal of China University of Geosciences
基金
国家自然科学基金(Nos.41330207
41472181)
关键词
玛扎塔格断裂带
变形特征
深层构造
油气藏
塔里木盆地
Mazhatage fault belt
deformation characteristics
deep structure
petroleum reservoirs
Tarim basin
