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学科主题: 地球科学::地质学
题名: First geomorphological and sedimentological evidence for the combined tectonic and climate control on Quaternary Yarlung river diversion in the eastern Himalaya
作者: Zhang, JY (Zhang, Jin-Yu)1, 2, 3; Yin, A (Yin, An)1, 2, 4, 5; Liu, WC (Liu, Wen-Can)1, 2; Ding, L (Ding, Lin)6; Xu, XM (Xu, Xiao-Mei)7
通讯作者: Yin, A
刊名: LITHOSPHERE
发表日期: 2016
DOI: 10.1130/L500.1
卷: 8, 期:3, 页:293-316
收录类别: SCI
合作性质: 国际
文章类型: Article
英文摘要:  This study investigates the combined effects of Quaternary climate change and tectonically induced topography on the Yarlung River drainage-system evolution in the eastern Himalaya. Our work integrates field mapping, geomorphological analysis, stratigraphy, sedimentology, optically stimulated luminescence dating, radiocarbon dating, and detrital-zircon dating of a Holocene valley-fill sequence in a Yarlung River tributary. This holistic approach reveals an aggradational event, which started at or soon after 24-20 k.y. B.P. and continued to or after 9.2-8.0 k.y.B.P. across the Himalayan drainage divide between the east-flowing Yarlung River in the north and the south-flowing Subansiri River in the south. The aggradational event was associated with a major phase of glacier advance during a period of warm and wet climate conditions in the eastern Himalaya; it was expressed by the deposition of a valley-fill sequence across the modern Yarlung-Subansiri drainage divide. South-flowing fluvial sediments across the divide and the elevation distribution of the fluvial terraces require the existence of a major glacier dam that either blocked a tributary or the main trunk of the Yarlung River. Although we are unable to differentiate the two competing scenarios, our work reveals that combined Holocene climate change and tectonically induced topography have played a major role in controlling rapid shifts in drainage geometry at a time scale of <10 k.y. across the Himalaya.
语种: 英语
WOS记录号: WOS:000378111700005
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7687
Appears in Collections:图书馆_期刊论文

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作者单位: 1.China Univ Geosci, State Key Lab Geol Proc & Mineral Res, Beijing 100083, Peoples R China
2.China Univ Geosci, Struct Geol Grp, Beijing 100083, Peoples R China
3.China Earthquake Adm, Inst Geol, Beijing 100029, Peoples R China
4.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA 90095 USA
5.Univ Calif Los Angeles, Inst Planets & Exoplanets, Los Angeles, CA 90095 USA
6.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China
7.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA

Recommended Citation:
Zhang, JY ,Yin, A ,Liu, WC ,et al. First geomorphological and sedimentological evidence for the combined tectonic and climate control on Quaternary Yarlung river diversion in the eastern Himalaya[J]. LITHOSPHERE,2016,8(3):293-316.
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文件名: V.8(3) 293-316 2016.pdf
格式: Adobe PDF
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