| 三亚活体珊瑚的微量元素与硼同位素组成的初步研究 |
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| 引用本文： | 李华玲,肖应凯,魏海珍,杜秀月,王秀芳,陈玉锋.三亚活体珊瑚的微量元素与硼同位素组成的初步研究[J].盐湖研究,2006,14(2):35-41. |
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| 作者姓名： | 李华玲 肖应凯 魏海珍 杜秀月 王秀芳 陈玉锋 |
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| 作者单位： | 1. 中国科学院青海盐湖研究所,青海,西宁,810008;中国科学院研究生院,北京,100039
2. 中国科学院青海盐湖研究所,青海,西宁,810008 |
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| 摘 要： | 测定了三亚活体珊瑚和其生长海域海水的Ca、Mg、B、Sr含量和B同位素组成,结果表明珊瑚中这些元素的浓度与对应海水的相同元素呈现出弱的正或负相关性,所有的相关系数均不大于0.3,这表明珊瑚的这些化学成分主要不是由对应海水所决定。Ca,Sr和B在珊瑚中均得到富集,其中Sr的富集程度最高,达3.08×103,而Mg在珊瑚中却是贫化的。珊瑚中Sr的掺入对B的掺入的影响要高于主成分Ca本身的影响,δ11B值与珊瑚的主成分Ca的浓度几乎无关,而与B、Sr和Mg浓度分别具有较弱的正相关和负相关关系,相关系数分别为0.343,0.309和0.276,珊瑚Sr浓度的增加引起B浓度的增加,同时会引起δ11B值的增加,而Mg的影响与此相反。
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| 关 键 词： | 珊瑚 海水 化学成分 微量元素 硼同位素组成 |
| 文章编号： | 1008-858X(2006)02-0035-07 |
| 修稿时间： | 2006年1月13日 |
Preliminary Study for Trace Element and Isotopic Compositions of Boron in Growing Corals from Sanya Bay, China |
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| LI Hua-ling,XIAO Ying-kai,WEI Hai-zhen,DU Xiu-yue,WANG Xiu-fang,CHEN Yu-feng.Preliminary Study for Trace Element and Isotopic Compositions of Boron in Growing Corals from Sanya Bay, China[J].Journal of Salt Lake Research,2006,14(2):35-41. |
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| Authors: | LI Hua-ling XIAO Ying-kai WEI Hai-zhen DU Xiu-yue WANG Xiu-fang CHEN Yu-feng |
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| Abstract: | The isotopic compositions of boron(δ~(11)B values) and the elemental concentrations of B,Ca,Mg and Sr in growing corals with δ~(11)B values of the coexisting seawater from Sanya Bay have been measured in this study.The results indicate that the elemental concentrations of B,Ca,Mg and Sr in corals have weak positive or negative relationgship with that in seawaters and all coefficients don't exceed 0.3.Ca,Sr and B are enriched in corals.The distribution coefficient of Sr between coral and seawater is highest with 3.08×10~3,Mg in corals get deficient.The effect of Sr in coral on the B is higher than that of the main component Ca.δ~(11)B is independent of the content of Ca and a weak positive and negative relationship between δ~(11)B values and the content of B、 Sr and Mg in corals can be observed. |
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| Keywords: | Coral Seawater Chemical component Trace elements isotopic composition of boron |
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