气候变化领域集成服务门户(CCPortal): Stable isotopes of modern herbivore tooth enamel in the Tibetan Plateau: Implications for paleoelevation reconstructions

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DOI	10.1007/s11434-009-0543-2
	Stable isotopes of modern herbivore tooth enamel in the Tibetan Plateau: Implications for paleoelevation reconstructions
	Xu Qiang; Ding Lin; Zhang LiYun; Yang Di; Cai FuLong; Lai QingZhou; Liu Jing; Shi RenDeng
通讯作者	Ding, L (通讯作者)
发表日期	2010
ISSN	1001-6538
EISSN	1861-9541
起始页码	45
结束页码	54
卷号	55 期号:1
英文摘要	Fossil tooth enamel from herbivores is considered one of the best proxies for paleoclimate and paleoelevation reconstructions, due to its low susceptibility to diagenetic alteration. A synthesis of oxygen and carbon isotope analyses of modern tooth enamel from herbivores such as Tibetan yaks, asses and antelopes is assessed. The average delta C-13(PDB) value of herbivore tooth enamel in the Lhasa and south Qiangtang terrains is -11.3% +/- 1.1%, whereas in the north Qiangtang and Hoh Xil terrains value is -10.2% +/- 1.4% consistent with the current C3-dominant ecotype in the Tibetan Plateau. In addition, the average delta O-18(PDB) values from tooth enamel show a northward systematic increase from -11.8% +/- 3.4% in the Gyirong Basin, to -11.1% +/- 1.1% in the Lhasa and southern Qiangtang terrains, and then to -9.0% +/- 1.1% in the northern Qiangtang and the Hoh Xil areas, similar to those of the local river water and precipitation variation trends. It is suggested that delta O-18(PDB) values of tooth enamel should not be used directly to evaluate the paleo-elevation of the Tibetan Plateau, because oxygen isotopic composition from tooth enamel is a combination of drinking water (precipitation- and river-sourced) and diet (plant-sourced). Moreover, an empirical relationship between oxygen isotope of tooth enamel and modern river water, and as well as elevation is recommended, which can be used in future studies of Tibetan Plateau paleoelevation.
关键词	PALEO-ELEVATION SOUTHERN TIBET LATE MIOCENE FOSSIL MAMMALS CLIMATE-CHANGE ASIAN MONSOON NE MARGIN PALEOALTIMETRY DELTA-O-18 RECORD
英文关键词	herbivore; tooth enamel; stable isotopes (delta C-13 and delta O-18); paleoelevation; Tibetan Plateau
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000273978700010
来源期刊	CHINESE SCIENCE BULLETIN
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/257731
推荐引用方式 GB/T 7714	Xu Qiang,Ding Lin,Zhang LiYun,et al. Stable isotopes of modern herbivore tooth enamel in the Tibetan Plateau: Implications for paleoelevation reconstructions[J]. 中国科学院青藏高原研究所,2010,55(1).
APA	Xu Qiang.,Ding Lin.,Zhang LiYun.,Yang Di.,Cai FuLong.,...&Shi RenDeng.(2010).Stable isotopes of modern herbivore tooth enamel in the Tibetan Plateau: Implications for paleoelevation reconstructions.CHINESE SCIENCE BULLETIN,55(1).
MLA	Xu Qiang,et al."Stable isotopes of modern herbivore tooth enamel in the Tibetan Plateau: Implications for paleoelevation reconstructions".CHINESE SCIENCE BULLETIN 55.1(2010).