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	Erosion rates deduced from seasonal mass balance along the upper Urumqi River in Tianshan
	Liu, Y.2; Metivier, F.1; Gaillardet, J.1; Ye, B.3,4; Meunier, P.5; Narteau, C.1; Lajeunesse, E.1; Han, T.3,4; Malverti, L.1
刊名	SOLID EARTH
	2011
卷号	2期号:2页码:283-301
ISSN号	1869-9510
DOI	10.5194/se-2-283-2011
通讯作者	Metivier, F.(metivier@ipgp.fr)
英文摘要	We report measurements performed during two complete flow seasons on the Urumqi River, a proglacial mountain stream in the northeastern flank of the Tianshan, an active mountain range in Central Asia. This survey of flow dynamics and sediment transport (dissolved, suspended and bed loads), together with a 25-year record of daily discharge, enables the assessment of secular denudation rates on this high mountain catchment of Central Asia. Our results show that chemical weathering accounts for more than one-third of the total denudation rate. Sediment transported as bed load cannot be neglected in the balance, given that sand and gravel transport accounts for one third of the solid load of the river. Overall, the mean denudation rates are low, averaging 46 t x km(-2) x yr(-1) (17-18 m Myr(-1)). We furthermore analyse the hydrologic record to show that the long-term sediment budget is not dominated by extreme and rare events but by the total amount of rainfall or annual runoff. The rates we obtain are in agreement with rates obtained from the mass balance reconstruction of the Plio-Quaternary gravely deposits of the foreland but signicantly lower than the rates recently obtained from cosmogenic dating of the Kuitun River sands, west of the Urumqi River. We show that the resolution of this incompatibility may have an important consquence for our understanding of the interplay between erosion and tectonics in the semi-humid ranges of Central Asia.
收录类别	SCI
WOS关键词	BED-LOAD TRANSPORT ; GLACIER NO. 1 ; EASTERN TIEN-SHAN ; HELLEY-SMITH SAMPLERS ; CENTRAL-ASIA ; SEDIMENT LOAD ; PHYSICAL EROSION ; WEATHERING RATES ; BRITISH-COLUMBIA ; ALPINE CATCHMENT
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000309884000014
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557948
专题	寒区旱区环境与工程研究所
通讯作者	Metivier, F.
作者单位	1.Univ Paris Diderot, Inst Phys Globe Paris Sorbonne Paris Cite, CNRS, UMR 7154, F-75238 Paris 05, France 2.Tianjin Normal Univ, Key Lab Water Environm & Resource, Tianjin 300387, Peoples R China 3.Chinese Acad Sci, States Key Lab Cryospher Sci Cold & Arid Reg Eniv, Lanzhou, Peoples R China 4.Chinese Acad Sci, Engn & Res Inst, Lanzhou, Peoples R China 5.Ecole Normale Super, CNRS, UMR8538, Dept Geol, F-75005 Paris, France
推荐引用方式 GB/T 7714	Liu, Y.,Metivier, F.,Gaillardet, J.,et al. Erosion rates deduced from seasonal mass balance along the upper Urumqi River in Tianshan[J]. SOLID EARTH,2011,2(2):283-301.
APA	Liu, Y..,Metivier, F..,Gaillardet, J..,Ye, B..,Meunier, P..,...&Malverti, L..(2011).Erosion rates deduced from seasonal mass balance along the upper Urumqi River in Tianshan.SOLID EARTH,2(2),283-301.
MLA	Liu, Y.,et al."Erosion rates deduced from seasonal mass balance along the upper Urumqi River in Tianshan".SOLID EARTH 2.2(2011):283-301.

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