气候变化领域集成服务门户(CCPortal): First geomorphological and sedimentological evidence for the combined tectonic and climate control on Quaternary Yarlung river diversion in the eastern Himalaya

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DOI	10.1130/L500.1
	First geomorphological and sedimentological evidence for the combined tectonic and climate control on Quaternary Yarlung river diversion in the eastern Himalaya
	Zhang, Jin-Yu; Yin, An; Liu, Wen-Can; Ding, Lin; Xu, Xiao-Mei
通讯作者	Yin, A (通讯作者)
发表日期	2016
ISSN	1941-8264
EISSN	1947-4253
起始页码	293
结束页码	316
卷号	8 期号:3
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.
关键词	INDIAN-SUMMER MONSOON ASIAN SOUTHWEST MONSOON NAMCHE-BARWA SYNTAXIS LAST GLACIAL MAXIMUM TIBETAN PLATEAU TSANGPO GORGE SOUTHEASTERN TIBET SOUTHERN TIBET U-PB STRUCTURAL EVOLUTION
语种	英语
WOS研究方向	Geochemistry & Geophysics ; Geology
WOS类目	Geochemistry & Geophysics ; Geology
WOS记录号	WOS:000378111700005
来源期刊	LITHOSPHERE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258826
推荐引用方式 GB/T 7714	Zhang, Jin-Yu,Yin, An,Liu, Wen-Can,et al. First geomorphological and sedimentological evidence for the combined tectonic and climate control on Quaternary Yarlung river diversion in the eastern Himalaya[J]. 中国科学院青藏高原研究所,2016,8(3).
APA	Zhang, Jin-Yu,Yin, An,Liu, Wen-Can,Ding, Lin,&Xu, Xiao-Mei.(2016).First geomorphological and sedimentological evidence for the combined tectonic and climate control on Quaternary Yarlung river diversion in the eastern Himalaya.LITHOSPHERE,8(3).
MLA	Zhang, Jin-Yu,et al."First geomorphological and sedimentological evidence for the combined tectonic and climate control on Quaternary Yarlung river diversion in the eastern Himalaya".LITHOSPHERE 8.3(2016).