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DOI	10.1002/2014GC005252
	Stable isotopes of surface water across the Longmenshan margin of the eastern Tibetan Plateau
	Xu, Qiang; Hoke, Gregory D.; Jing Liu-Zeng; Ding, Lin; Wang, Wei; Yang, Yang
通讯作者	Xu, Q (通讯作者)
发表日期	2014
EISSN	1525-2027
起始页码	3416
结束页码	3429
卷号	15 期号:8
英文摘要	Characterization of the stable isotope compositions (O-18 and D) of modern-day surface waters traversing mountain ranges and bordering continental plateaus is important for refining climate models and establishing modern isotope-elevation gradients along mountain ranges. The Longmenshan margin of the Tibetan Plateau is a steep, 4 km topographic front situated near the boundaries between westerlies and Asian monsoon moisture sources, and is previously unexplored with respect to the variation in water isotopic composition with elevation. This study reports stable isotope data from 101 water samples collected from streams, springs, and ponds along the Min River (Minjiang) watershed, which traverses the Longmenshan margin. Local meteoric water lines, d-excess values, and surrounding precipitation and river water data sets suggest that precipitation across the Longmenshan margin is dominated by the East Asian summer monsoon. The increase in d-excess values with increasing catchment elevation breaks down as local moisture recycling becomes important at elevations>3 km a.s.l.. Along the Min River, however, the O-18(w) and D-w values decrease with increasing catchment elevation, which fit second-order polynomial curves and are well-approximated by a simple Rayleigh fractionation processes. The temperature-corrected oxygen values in authigenic carbonates from the Pleistocene Zoige Basin, north of the Min River watershed, yield elevations equivalent to present by the oxygen isotope-elevation relationship of the Longmenshan margin.
关键词	DEUTERIUM EXCESS DELTA O-18 PRECIPITATION PALEOELEVATION PALEOALTIMETRY OXYGEN UPLIFT PALEOCLIMATE MIOCENE CLIMATE
英文关键词	stable isotopes; paleoelevation; Min River; Longmenshan margin; Tibetan Plateau
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000342693400018
来源期刊	GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
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/258378
推荐引用方式 GB/T 7714	Xu, Qiang,Hoke, Gregory D.,Jing Liu-Zeng,et al. Stable isotopes of surface water across the Longmenshan margin of the eastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2014,15(8).
APA	Xu, Qiang,Hoke, Gregory D.,Jing Liu-Zeng,Ding, Lin,Wang, Wei,&Yang, Yang.(2014).Stable isotopes of surface water across the Longmenshan margin of the eastern Tibetan Plateau.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,15(8).
MLA	Xu, Qiang,et al."Stable isotopes of surface water across the Longmenshan margin of the eastern Tibetan Plateau".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 15.8(2014).