[1]程晓敢,吴鸿翔,李勇,等.西昆仑山前印支运动期构造对后期构造和沉积的影响[J].新疆石油地质,2019,(01):27.[doi:10.7657/XJPG20190104]
 CHENG Xiaogan,WU Hongxiang,LI Yong,et al.Influences of Indosinian Structures on Later Structural Deformation and Sedimentation in Piedmont of Western Kunlun Mountains[J].Xinjiang Petroleum Geology,2019,(01):27.[doi:10.7657/XJPG20190104]
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西昆仑山前印支运动期构造对后期构造和沉积的影响()
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《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

卷:
期数:
2019年01期
页码:
27
栏目:
出版日期:
2019-02-01

文章信息/Info

Title:
Influences of Indosinian Structures on Later Structural Deformation and Sedimentation in Piedmont of Western Kunlun Mountains
文章编号:
1001-3873(2019)01-0027-07
作者:
程晓敢12吴鸿翔12李勇3陈汉林12章凤奇12师骏3
(1.浙江大学 地球科学学院,杭州 310027;2.教育部含油气盆地构造研究中心,杭州 310027;3.中国石油 塔里木油田分公司 勘探开发研究院,新疆 库尔勒 841000)
Author(s):
CHENG Xiaogan12 WU Hongxiang12 LI Yong3 CHEN Hanlin12 ZHANG Fengqi12 SHI Jun3
(1.School of Earth Sciences, Zhejiang University, Hangzhou, Zhejiang 310027, China; 2.Research Center for Structures in Oil- and Gas- Bearing Basins, Ministry of Education, Hangzhou, Zhejiang 310027, China; 3.Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China)
关键词:
塔里木盆地西昆仑山前印支运动期古隆起构造变形沉积
Keywords:
Tarim basin piedmont of western Kunlun Mountains Indosinian period paleo-uplift structural deformation sedimentation
分类号:
TE122;P548
DOI:
10.7657/XJPG20190104
文献标志码:
A
摘要:
印支运动期古构造对塔里木盆地西南缘西昆仑山前后期的构造变形和侏罗纪—白垩纪的沉积都具有十分重要的控制作用。但由于新生代以来的强烈改造,研究区印支运动期构造特征识别较为困难。选择新生代构造活动相对较弱的西昆仑山前中段,野外露头调查、钻井和地震资料等综合研究表明,西昆仑山前发育印支运动期褶皱冲断带,形成一系列逆冲断层和北东翼陡、南西翼缓的背斜,这与晚三叠世塔里木板块与羌塘地体最终完成陆—陆碰撞形成的北—北东向挤压有关。印支运动期发育的古断层在喜马拉雅运动晚期挤压下复活,从而造成两期背斜上下叠置,构造高点重合。因此,印支运动期构造格局极大地限制了喜马拉雅运动晚期的构造变形。印支运动期古构造奠定了中生代的古地形格局,并对侏罗纪—白垩纪沉积起到了重要的控制作用。受深部印支运动期逆冲断层控制的北西—南东向斜列式分布的古隆起,是造成该区白垩系分布和储集层物性差异的重要原因。
Abstract:
The Indosinian structures exert important controls on the structural deformation in the late stages and sedimentation during Jurassic to Cretaceous in the piedmont of the western Kunlun Mountains in the southwestern margin of Tarim basin. It is very difficult to identify the structural features during Indosinian period in the study area due to the strong reworking since Cenozoic. The middle segment of the western Kunlun Mountains where the tectonic activity was relatively weak is selected to be the study object. Based on the comprehensive study on field outcrop, drilling and seismic data, fold thrust belts were developed in the piedmont of the western Kunlun Mountains and a series of thrust faults and the anticlines with steep north and east flanks and gentle south and west flanks were formed, which may be related to the N-NE compression resulted from the continental collision between the Late Triassic Tarim plate and Qiangtang terrane. These Indosinian structures were reactivated due to the compression during the Late Himalayan movement, resulting in the superimpositions of the anticlines of two periods and the coincidence of structural highs. Therefore, the structural framework during the Indosinian movement significantly constrained the structural deformation during the Late Himalayan movement. The paleostructure during the Indosinian period laid a foundation for the paleotopographic framework of Mesozoic and played an important control action on the sedimentation during Jurassic to Cretaceous. The NW-SE trending paleohigh controlled by deep-burial thrust faults during Indosinian is the main factor resulting in the differences in distribution and physical properties of Cretaceous reservoir

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更新日期/Last Update: 2019-01-22