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学科主题: Geochemistry & Geophysics
题名: U-series dating of dead Porites corals in the South China sea: Evidence for episodic coral mortality over the past two centuries
作者: Yu, KF ; Zhao, JX ; Shi, Q ; Chen, TG ; Wang, PX ; Collerson, KD ; Liu, TS
通讯作者: kefuyu@scsio.ac.cn ; j.zhao@uq.edu.au ; shiqi@scsio.ac.cn ; kefuyu@scsio.ac.cn ; pxwang@online.sh.cn ; k.collerson@uq.edu.au ; tsliu@public.bta.net.cn
关键词: TIMS U-series dating ; coral mortality ; coral bleaching ; el nino ; South China Sea
刊名: QUATERNARY GEOCHRONOLOGY
发表日期: 2006
卷: 1, 期:2, 页:129-141
收录类别: sci
部门归属: Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Peoples R China; Univ Queensland, Radiogen Isotope Lab, Ctr Microscopy & Microanal, Brisbane, Qld 4072, Australia; Tongji Univ, Lab Marine Geol, Shanghai 200092, Peoples R China; Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
项目归属: 海洋地质
摘要: High-precision (up to +/- 1-2 years) U-series dating of dead in situ massive Porites corals on the reef flats of Yongshu and Meiji Reefs, Nansha area, southern South China Sea reveals that mortality of these massive corals occurred many times over the past two centuries, many of which appear to correlate in time with historic El Nino events. Despite different habitats of corals, at least six mortality events occurred simultaneously on both reefs (e.g. in 1869-1873, 1917-1920, 1957-1961, 1971, 1982-1983 and 1999-2000 AD), reflecting the occurrence of large-scale regional events. We speculate that many of such mortality events, especially those dated at 1998-2000, 1991, 1982-1983, 1971, and 1957-1958 AD with an overall uncertainty of +/- 1-2 years, are probably due to high temperature bleaching during El Nino years (e.g. 1997-1998, 1991-1992, 1982-1983, 1972-1973 and 1957-1959 AD). This study demonstrates that individual colonies of massive corals have died at different times over the past two centuries and mass spectrometric U-series dating of very young corals with a precision of up to +/- 1-2 years is likely to become a powerful tool for reconstruction of past coral mortality history and investigation of global warming and coral bleaching. (c) 2006 Elsevier Ltd. All rights reserved.
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WOS记录号: WOS:000247209700006
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4356
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Yu, KF; Zhao, JX; Shi, Q; Chen, TG; Wang, PX; Collerson, KD; Liu, TS.U-series dating of dead Porites corals in the South China sea: Evidence for episodic coral mortality over the past two centuries,QUATERNARY GEOCHRONOLOGY,2006,1(2):129-141
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