柴达木盆地北缘侏罗系沉积层序的构造演化响应  

The Jurassic Fossil-rich Clastic Sequence and Structural Response in North of Qaidam Basin

作　　者：姚宏鑫 王宗秀 朱随洲 徐建[2] 王志浩[2] 马崇军[2] 闵祥吉 周宇[2] 储照波[2] 

机构地区：[1]地质力学研究所,北京100081 [2]中国冶金地质总局山东正元地质勘查院,山东济南250101

出　　处：《西北地质》2017年第2期16-27,共12页Northwestern Geology

基　　金：基金项目:中国地质调查局"柴达木盆地中生代控盆构造与石油地质条件调查"(12120115003401)

摘　　要：柴达木盆地位于青藏高原北部大型的中、新生代沉积盆地,是油气资源的重点勘察区。通过对盆地侏罗系研究现状的总结,发现目前关于盆地属性和构造类型尚未达到一致认识,存在多种分歧意见。已有的研究成果重点集中在地层沉积相特征和烃源岩方面,而对地层沉积层序、厚度及展布的研究较少,只停留在少量的定性研究上。地层沉积层序以及沉积物源追溯等可以客观地反演造山带演化和山体隆升的样式与规律。因此,通过柴北缘侏罗系沉积层序的建立,反演这一时期与之相邻造山带的构造活动是探讨柴北缘中、新生代构造演化的一个科学、有效的方法。Qaidam Basin,located at the large Mesozoic-Cenozoic sedimentary basin in north Qinghai-Tibet plateau,is one of the important exploration areas for oil and gas resources.After summarizing the research status of Jurassic strata at this basin,the author finds that there are still many different points of view in the basin property and structure type.The studies mainly focus on features of sedimentary facies and hydrocarbon source rock,but the researches in sequence,thickness and stretch of the strata sedimentation are few,just lingering on qualitative study.Sedimentary sequence of the strata and the sediments source tracing can objectively retrieve the orogenic evolution and uplifting type and regulation.Thus,through establishing the sedimentary sequence of Jurassic strata at northern Qaidam Basin,the structural activities of the neighboring orogenic belt at that time can be retrieved,which is a scientific and effective method for discussing the Mesozoic-Cenozoic structural evolution at northern Qaidam Basin.

关 键 词：柴北缘 盆山耦合 侏罗系 沉积层序 构造响应 

分 类 号：P542[天文地球—构造地质学]