气候变化领域集成服务门户(CCPortal): Along-strike structural variation in a salt-influenced fold and thrust belt: Analysis of the Kuqa depression

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DOI	10.1016/j.tecto.2020.228456
	Along-strike structural variation in a salt-influenced fold and thrust belt: Analysis of the Kuqa depression
	Wang W.; Yin H.; Jia D.; Neng Y.; Zhou P.; Chen W.; Li C.; Wu Z.
发表日期	2020
ISSN	00401951
卷号	786
英文摘要	The Kuqa depression is associated with complex salt structures. Variation in fold geometries and subsalt fault activities were investigated using parallel cross-sections to reveal detailed along-strike variations within the Keshen 5 segment and their controlling factors. Along-strike variations were identified in both suprasalt and subsalt units. Linkages, such as the location of a transfer zone, were apparent, while the distribution of variations above and below the salt layer were decoupled. The results indicate that the pre-existing salt wall is the key factor driving along-strike variations because it acts as a weak zone that influences deformation propagation. Suprasalt structural variation results in different sediment depths, which have a significant impact on subsalt fault activity. In the eastern segment, fault activity decreases from the hinterland to the basin. In contrast, owing to the pre-existing salt wall and deep sedimentation near the hinterland in the western segment, the fault beneath the salt wall is characterized by maximum displacement. This study reveals the connection between suprasalt and subsalt deformation and the role of that a salt diapir plays in along-strike structural evolution variations for the Keshen 5 segment of the Kuqa depression. These findings are relevant for understanding along-strike deformation propagation and structural variation in other fold and thrust systems. © 2020 Elsevier B.V.
关键词	Along-strike variation Fold and thrust belt Kuqa depression Laterally compatible cross-section Salt diapir
英文关键词	Deformation; Controlling factors; Fault activity; Fold-and-thrust belts; Kuqa depression; Maximum displacement; Structural evolution; Structural variations; Thrust systems; Subsalt strata; crustal deformation; fault displacement; fault geometry; fold and thrust belt; salt tectonics; strike (geology); structural geology; China; Kuqa Depression; Tarim Basin; Xinjiang Uygur
语种	英语
来源期刊	Tectonophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207896
作者单位	School of Earth Science and Engineering, Nanjing University, Nanjing, Jiangsu 210046, China; China University of Petroleum-Beijing, Karamay, Karamay, Xinjiang, 834000, China; Research Institute of Petroleum Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang, 841000, China; School of Earth Science, East China University of Technology, Nanchang, Jiangxi 330013, China
推荐引用方式 GB/T 7714	Wang W.,Yin H.,Jia D.,et al. Along-strike structural variation in a salt-influenced fold and thrust belt: Analysis of the Kuqa depression[J],2020,786.
APA	Wang W..,Yin H..,Jia D..,Neng Y..,Zhou P..,...&Wu Z..(2020).Along-strike structural variation in a salt-influenced fold and thrust belt: Analysis of the Kuqa depression.Tectonophysics,786.
MLA	Wang W.,et al."Along-strike structural variation in a salt-influenced fold and thrust belt: Analysis of the Kuqa depression".Tectonophysics 786(2020).