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学科主题: Geosciences, Multidisciplinary
题名: High-frequency climatic oscillations recorded in a Holocene coral reef at Leizhou Peninsula, South China sea
作者: Yu, KF ; Liu, DS ; Shen, CD ; Zhao, JX ; Chen, TG ; Zhong, JL ; Zhao, HT ; Song, CJ
关键词: coral reef ; Holocene Hypsithermal ; abrupt climate change ; sea level ; Leizhou events ; South China sea
刊名: SCIENCE IN CHINA SERIES D-EARTH SCIENCES
发表日期: 2002
卷: 45, 期:12, 页:1057-+
收录类别: sci
部门归属: Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Peoples R China; Chinese Acad Sci, Geol & Geophys Inst, Beijing 100029, Peoples R China; Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China; Univ Queensland, Dept Earth Sci, Brisbane, Qld 4072, Australia
项目归属: 海洋地质
摘要: A detailed study of the Goniopora reef profile at Dengloujiao, Xuwen County, Leizhou Peninsula, the northern coast of the South China Sea suggests that a series of high-frequency, large-amplitude and abrupt cold events occurred during the Holocene Hypsithermal, an unusual phenomenon termed "Leizhou Events" in this paper. This period (corresponding to C-14 age of 6.2 -6.7 kaBP or calendar age of 6.7-7.2 kaBP), when the climatic conditions were ideal for coral. reefs to develop, can be divided into at least nine stages. Each stage (or called a "climate optimum"), lasting about 20 to 50 a, was terminated by an abrupt cold nap and (or) a sea-level lowering event in winter, leading to widespread emergence and death of the Goniopora corals, and growth discontinuities on the coral surface. Such a cyclic process resulted in the creation of a > 4m thick Goniopora reef flat. During this period, the crust subsided periodically but the sea level was rising. The reef profile provides valuable archives for the study of decadal-scale mid-Holocene climatic oscillations in the tropical area of South China. Our results provide new evidence for high-frequency climate instability in the Holocene Hypsithermal, and challenge the traditional understanding of Holocene climate.
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WOS记录号: WOS:000179210200001
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4704
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; Liu, DS; Shen, CD; Zhao, JX; Chen, TG; Zhong, JL; Zhao, HT; Song, CJ.High-frequency climatic oscillations recorded in a Holocene coral reef at Leizhou Peninsula, South China sea,SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2002,45(12):1057-+
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