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Stratigraphy and otolith microchemistry of the naked carp Gymnocypris przewalskii (Kessler) and their indication for water level of Lake Qinghai during the Ming Dynasty of China
Wang, YJ (Wang YuJiao)[ 1,2 ]; Jin, ZD (Jin ZhangDong)[ 1,3 ]; Zhou, L (Zhou Ling)[ 1,4 ]; Li, FC (Li FuChun)[ 2 ]; Zhang, F (Zhang Fei)[ 1 ]; Chen, LM (Chen LiuMei)[ 1 ]; Qiu, XN (Qiu XinNing)[ 5 ]; Qi, RG (Qi RuGui)[ 5 ]
2014-10-15
Source PublicationSCIENCE CHINA-EARTH SCIENCES
Volume57Issue:10Pages:2512-2521
Subtype期刊论文
Abstract

Otoliths are biogenic carbonate minerals in the inner ear of teleost fish, whose compositions can record the physical and chemical conditions of the ambient water environment inhabited by individual fish. In this research, the fishbones and otoliths of naked carp sampled near the Bird Island, offshore Lake Qinghai, were dated and analyzed for mineralogy and microchemical compositions. Comparing the microchemical compositions of ancient otoliths with those of modern otoliths, we conclude that the ancient naked carps inhabited a relict lake formed when the lake shrank from a high lake level, by combining with the AMS-C-14 ages of fishbones and otoliths, the stratigraphy and surrounding topography of the sample site. AMS-C-14 dating results of ancient fishbones and otoliths show that these naked carps lived from 680 to 300 years ago, i.e. during the Ming Dynasty of China. The X-ray diffraction (XRD) patterns demonstrate that the ancient lapillus is composed of pure aragonite, identical to modern one, indicating that the mineral of lapillus didn't change after a long time burial and that the ancient lapillus is suitable for comparative analysis thereafter. Microchemical results show that both ratios of Mg/Ca ((70.12 +/- 18.50)x10(-5)) and delta O-18 ((1.76 +/- 1.03)parts per thousand) of ancient lapilli are significantly higher than those of modern lapilli (average Mg/Ca=(3.11 +/- 0.41)x10(-5) and delta O-18=(-4.82 +/- 0.96)parts per thousand). This reflects that the relict water body in which the ancient naked carp lived during the Ming Dynasty was characterized by higher Mg/Ca and delta O-18 ratios than modem Lake Qinghai, resulting from strong evaporation after being isolated from the main lake, similar to today's Lake Gahai. Based upon the stratigraphy and altitude of naked carp remains, it can be inferred that the altitude of lake level of Lake Qinghai reached at least 3202 m with a lake area of 4480 km(2) during the Ming Dynasty, approximately similar to 5% larger than it is today.

DOI10.1007/s11430-014-4836-1
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9810
Collection加速器质谱中心
Corresponding AuthorJin, ZD (Jin ZhangDong)[ 1,3 ]
Affiliation1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China;
2.College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China;
3.Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an 710049, China;
4.University of Chinese Academy of Sciences, Beijing 100049, China;
5.The Bureau of Hydrology and Water Resources of Qinghai Province, Xi’ning 810001, China
Recommended Citation
GB/T 7714
Wang, YJ ,Jin, ZD ,Zhou, L ,et al. Stratigraphy and otolith microchemistry of the naked carp Gymnocypris przewalskii (Kessler) and their indication for water level of Lake Qinghai during the Ming Dynasty of China[J]. SCIENCE CHINA-EARTH SCIENCES,2014,57(10):2512-2521.
APA Wang, YJ .,Jin, ZD .,Zhou, L .,Li, FC .,Zhang, F .,...&Qi, RG .(2014).Stratigraphy and otolith microchemistry of the naked carp Gymnocypris przewalskii (Kessler) and their indication for water level of Lake Qinghai during the Ming Dynasty of China.SCIENCE CHINA-EARTH SCIENCES,57(10),2512-2521.
MLA Wang, YJ ,et al."Stratigraphy and otolith microchemistry of the naked carp Gymnocypris przewalskii (Kessler) and their indication for water level of Lake Qinghai during the Ming Dynasty of China".SCIENCE CHINA-EARTH SCIENCES 57.10(2014):2512-2521.
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