气候变化领域集成服务门户(CCPortal): Low elevation of the northern Lhasa terrane in the Eocene: Implications for relief development in south Tibet

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DOI	10.1111/ter.12180
	Low elevation of the northern Lhasa terrane in the Eocene: Implications for relief development in south Tibet
	Xu, Qiang; Ding, Lin; Hetzel, Ralf; Yue, Yahui; Rades, Eike F.
通讯作者	Xu, Q (通讯作者)
发表日期	2015
ISSN	0954-4879
EISSN	1365-3121
起始页码	458
结束页码	466
卷号	27 期号:6
英文摘要	The uplift history of Tibet is crucial for understanding the geodynamic and palaeoclimatologic evolution of Asia; however, the pattern of plateau uplift through space and time remains unresolved. We use stable isotope data from palaeosol carbonates to reconstruct the Eocene (similar to 46 Ma) elevation of the Tangra Yum Co region (northern Lhasa terrane). The difference between the oxygen isotopic compositions of the studied palaeosols and Eocene surface water near the source of the Indian monsoon indicates a palaeoelevation of 2590 (+730/-910) m for Tangra Yum Co (present altitude: similar to 4600 m). A similar palaeoaltitude is obtained by comparing our data with modern soils and taking past environmental changes into account. Combining our results with published palaeoelevation estimates for Tibet suggests significant relief (similar to 2 km) during the Eocene, when a low-lying basin in the northern Lhasa terrane was bounded by the Qiangtang and Gangdese mountain belts to the north and south respectively.
关键词	INDIA-ASIA COLLISION ISOTOPE PALEOALTIMETRY LUNPOLA BASIN PALEOELEVATION EVOLUTION RECORD DELTA-O-18 CONSTRAINTS QIANGTANG HIMALAYA
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000367729500009
来源期刊	TERRA NOVA
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/258432
推荐引用方式 GB/T 7714	Xu, Qiang,Ding, Lin,Hetzel, Ralf,et al. Low elevation of the northern Lhasa terrane in the Eocene: Implications for relief development in south Tibet[J]. 中国科学院青藏高原研究所,2015,27(6).
APA	Xu, Qiang,Ding, Lin,Hetzel, Ralf,Yue, Yahui,&Rades, Eike F..(2015).Low elevation of the northern Lhasa terrane in the Eocene: Implications for relief development in south Tibet.TERRA NOVA,27(6).
MLA	Xu, Qiang,et al."Low elevation of the northern Lhasa terrane in the Eocene: Implications for relief development in south Tibet".TERRA NOVA 27.6(2015).