气候变化领域集成服务门户(CCPortal): Early Cenozoic activated deformation in the Qilian Shan, northeastern Tibetan Plateau: Insights from detrital apatite fission-track analysis

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DOI	10.1111/bre.12533
	Early Cenozoic activated deformation in the Qilian Shan, northeastern Tibetan Plateau: Insights from detrital apatite fission-track analysis
	He, Pengju; Song, Chunhui; Wang, Yadong; Wang, Daichun; Chen, Lihao; Meng, Qingquan; Fang, Xiaomin
通讯作者	He, PJ ; Song, CH (通讯作者)，Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0950-091X
EISSN	1365-2117
起始页码	1731
结束页码	1748
卷号	33 期号:3
英文摘要	The evolution of the tectonic deformation of the northeastern Tibetan Plateau (TP) in the Cenozoic is significant for understanding plateau growth during India-Asia convergence. However, when deformation began and how it has developed in this pivotal region remain controversial. We focus on the temporal progress of Cenozoic deformation in the Qilian Shan, a major tectonic belt of the northeastern TP. In the present study, detrital apatite fission-track (AFT) thermochronological analysis was performed on Oligocene-Quaternary synorogenic sediments in the northern Qaidam Basin, where detritus is sourced from the Qilian Shan. Age components of buried but unannealed detrital AFT samples reveal two static peaks (i.e., peak ages that are consistent upsection) at ca. 60-50 Ma and ca. 40-36 Ma and a moving peak (i.e., peak ages that are younger upsection) with increased lag time during ca. 30-8 Ma. These new detrital AFT ages, integrated with the analysis of sedimentary provenance and data from previously published studies, indicate that Cenozoic tectonic deformation began in the Qilian Shan in the late Paleocene-early Eocene. Furthermore, the Qilian Shan experienced a subsequent episodic deformation event in the late Eocene and the deformation or erosion of some terranes in the Qilian Shan decelerated during the Oligocene-Miocene. Our results suggest that the northeastern TP responded to the India-Asia collision almost instantaneously.
英文关键词	Cenozoic; Qilian Shan; tectonics and sedimentation; thermochronology; Tibetan Plateau
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000615738600001
来源期刊	BASIN RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/255068
作者单位	[He, Pengju; Song, Chunhui; Wang, Daichun; Chen, Lihao; Meng, Qingquan] Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China; [He, Pengju; Song, Chunhui; Wang, Daichun; Chen, Lihao; Meng, Qingquan] Lanzhou Univ, Key Lab Mineral Resources Western China Gansu Pro, Lanzhou 730000, Peoples R China; [He, Pengju; Fang, Xiaomin] Chinese Acad Sci, Key Lab Continental Collis & Plateau Uplift, Beijing, Peoples R China; [He, Pengju; Fang, Xiaomin] Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China; [Wang, Yadong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Peoples R China; [Wang, Yadong] Key Lab Petr Resources Gansu Prov, Lanzhou, Peoples R China; [Wang, Yadong; Fang, Xiaomin] Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	He, Pengju,Song, Chunhui,Wang, Yadong,et al. Early Cenozoic activated deformation in the Qilian Shan, northeastern Tibetan Plateau: Insights from detrital apatite fission-track analysis[J]. 中国科学院西北生态环境资源研究院,2021,33(3).
APA	He, Pengju.,Song, Chunhui.,Wang, Yadong.,Wang, Daichun.,Chen, Lihao.,...&Fang, Xiaomin.(2021).Early Cenozoic activated deformation in the Qilian Shan, northeastern Tibetan Plateau: Insights from detrital apatite fission-track analysis.BASIN RESEARCH,33(3).
MLA	He, Pengju,et al."Early Cenozoic activated deformation in the Qilian Shan, northeastern Tibetan Plateau: Insights from detrital apatite fission-track analysis".BASIN RESEARCH 33.3(2021).