气候变化领域集成服务门户(CCPortal): Late Oligocene Orogen-Scale Tilting in Northern Tibet: A Response to Northward Injection of the Tibetan Lower Crust?

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DOI	10.1029/2022GL102700
	Late Oligocene Orogen-Scale Tilting in Northern Tibet: A Response to Northward Injection of the Tibetan Lower Crust?
	Li, Chaopeng; Zheng, Dewen; Yu, Jingxing; Wang, Yizhou; Pang, Jianzhang; Wang, Ying; Ma, Yan; Hao, Yuqi; Xu, Yi-Gang
发表日期	2023
ISSN	0094-8276
EISSN	1944-8007
卷号	50 期号:8
英文摘要	The East Kunlun Shan (EKLS) in northern Tibet occupies boundaries of the low-relief topography and lower crustal low-velocity zone in the interior plateau, making it ideal for exploring the relationship of surface deformation with underlying geodynamic processes. We used previous and new apatite (U-Th)/He data to analyze the exhumation history and pattern throughout the EKLS and link surface deformation to deep structures. Integrated (U-Th)/He ages reveal the rapid exhumation at 27-25 Ma, due to the coeval orogen-scale tilting of the EKLS. Along with the crustal structures beneath the EKLS, it is inferred that orogen-scale tilting is the isostatic response of the nonuniform crustal thickening related to northward injection of the Tibetan lower crust. This study highlights the role of ductile deformation within the lower crust in mountain building in northern Tibet, which shares a similarity with mountain building pattern in the eastern plateau margin.
关键词	northern Tibet East Kunlun Shan apatite (U-Th)He orogen-scale tilting late Oligocene isostatic response
英文关键词	APATITE (U-TH)/HE THERMOCHRONOMETRY; CENOZOIC TECTONIC EVOLUTION; EASTERN KUNLUN RANGE; QAIDAM BASIN; CONTINENTAL DEFORMATION; PLATEAU MARGIN; COLLISION; FAULT; UPLIFT; INDIA
WOS研究方向	Geosciences, Multidisciplinary
WOS记录号	WOS:000999822400001
来源期刊	GEOPHYSICAL RESEARCH LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282674
作者单位	Chinese Academy of Sciences; Guangzhou Institute of Geochemistry, CAS; China Earthquake Administration
推荐引用方式 GB/T 7714	Li, Chaopeng,Zheng, Dewen,Yu, Jingxing,et al. Late Oligocene Orogen-Scale Tilting in Northern Tibet: A Response to Northward Injection of the Tibetan Lower Crust?[J],2023,50(8).
APA	Li, Chaopeng.,Zheng, Dewen.,Yu, Jingxing.,Wang, Yizhou.,Pang, Jianzhang.,...&Xu, Yi-Gang.(2023).Late Oligocene Orogen-Scale Tilting in Northern Tibet: A Response to Northward Injection of the Tibetan Lower Crust?.GEOPHYSICAL RESEARCH LETTERS,50(8).
MLA	Li, Chaopeng,et al."Late Oligocene Orogen-Scale Tilting in Northern Tibet: A Response to Northward Injection of the Tibetan Lower Crust?".GEOPHYSICAL RESEARCH LETTERS 50.8(2023).