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学科主题: Geosciences, Multidisciplinary; Oceanography; Paleontology
题名: High-resolution elemental records from the South China Sea and their paleoproductivity implications
作者: Wei, GJ ; Liu, Y ; Li, XH ; Chen, MH ; Wei, WC
通讯作者: gjwei@gig.ac.cn ; yingliu@gig.ac.cn ; lixh@gig.ac.cn ; mhchen@scsio.ac.cn
关键词: element records ; South China Sea ; paleoproductivity
刊名: PALEOCEANOGRAPHY
发表日期: 2003
卷: 18, 期:2, 页:-1054
收录类别: sci
部门归属: Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou, Peoples R China; Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510640, Peoples R China; Univ Calif San Diego, Scripps Inst Oceanog, San Diego, CA 92103 USA
项目归属: 海洋地质
摘要: [1] The biogenic-related elements Ca, Sr, Ba, P, Cd, scavenged Al, and Ti were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) for Core NS93-5 from the west slope of the South China Sea. Terrestrial input as estimated from the accumulation of Ti was higher during glacials than during interglacials. Carbonate accumulation rates are inversely related to those of terrestrial input, suggesting higher production of calcareous phytoplankton during interglacials. The accumulation patterns of authigenic Sr, Ba, P, and Cd match that of carbonate, further indicating higher calcareous phytoplankton production during interglacials. Scavenged Al and excess SiO2, which is related to biogenic opal, exhibit higher accumulation rates during glacials and correspond with changes in terrestrial input. This indicates that terrestrial input driven is important to siliceous phytoplankton production but not for calcareous phytoplankton production. As calcareous phytoplankton is the dominant component of the biogenic sediments in the South China Sea, particularly during interglacials, previous inference of higher productivity in the South China Sea during glacials based on only the biogenic opal proxy needs to be reconsidered.
原文出处: 查看原文
WOS记录号: WOS:000184594700001
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4758
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Recommended Citation:
Wei, GJ; Liu, Y; Li, XH; Chen, MH; Wei, WC.High-resolution elemental records from the South China Sea and their paleoproductivity implications,PALEOCEANOGRAPHY,2003,18(2):-1054
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