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    青岛胶州湾沉积物痕量元素黄铁矿化程度及其剖面类型

    叶思源 武强 钟少军 周永青 鲁静

    叶思源, 武强, 钟少军, 周永青, 鲁静, 2006. 青岛胶州湾沉积物痕量元素黄铁矿化程度及其剖面类型. 地球科学, 31(2): 175-181.
    引用本文: 叶思源, 武强, 钟少军, 周永青, 鲁静, 2006. 青岛胶州湾沉积物痕量元素黄铁矿化程度及其剖面类型. 地球科学, 31(2): 175-181.
    YE Si-yuan, WU Qiang, ZHONG Shao-jun, ZHOU Yong-qing, LU Jing, 2006. Pyritization of Trace Elements in Sediments of the Jiaozhou Bay, Qingdao, China. Earth Science, 31(2): 175-181.
    Citation: YE Si-yuan, WU Qiang, ZHONG Shao-jun, ZHOU Yong-qing, LU Jing, 2006. Pyritization of Trace Elements in Sediments of the Jiaozhou Bay, Qingdao, China. Earth Science, 31(2): 175-181.

    青岛胶州湾沉积物痕量元素黄铁矿化程度及其剖面类型

    基金项目: 

    中国重点海岸带滨海环境地质调查与评价项目 12112010310402

    青岛近海沉积环境与海上奥运比赛场海域地质调查研究项目 XM (2002) -22E

    详细信息
      作者简介:

      叶思源(1963—), 女, 博士生, 青岛海洋地质研究所研究员, 主要从事生态地球化学研究.E-mail:qdysiyuan@cgs.gov.cn

    • 中图分类号: P59

    Pyritization of Trace Elements in Sediments of the Jiaozhou Bay, Qingdao, China

    • 摘要: 为了探索青岛近海不同沉积环境下不同痕量元素的黄铁矿化规律, 2003年5月潜水员潜入海底采集了4个不同沉积环境的未扰动柱样, 并利用Huerta-Diaz and Morse (1990)连续提取技术测试分析了沉积物痕量金属的不同存在形式(活性态和黄铁矿结合态) 在垂直剖面上的分布规律.结果表明: 除了在涨潮三角洲上部沉积和潮下带沉积物柱子的Cd和Cr外, 痕量元素的黄铁矿化度的增高取决于其相应剖面上的DOP的增高; 并且不同痕量元素向黄铁矿中转移的规模存在着较大的差别, 即元素As、Hg和Mo转移的规模最大, Cu、Zn、Cd、Cr、Co和Ni中等, Pb和Mn最小; 此外, 还进一步揭示了河流三角洲沉积物的下部各元素的黄铁矿化程度高, 而潮下带沉积物以及涨潮三角洲沉积物低.最后指出在河口水下三角洲进行的清淤工作应注意黄铁矿结合态痕量元素的活化而产生生物有效的毒性元素.

       

    • 图  1  研究区取样位置

      Fig.  1.  Sampling locations

      图  2  活性Fe和黄铁矿Fe随深度变化

      a.02站位; b.04站位; c.01站位; ●为活性态; ▲为黄铁矿态

      Fig.  2.  Reactive Fe and pyrite Fe concentration

      图  3  痕量金属Cu、Pb、Zn、Cr、Cd、Co、Mo、Ni、As、Hg、Mn黄铁矿矿化度DTMP与黄铁矿矿化度DOP之间的相关

      Fig.  3.  Degrees of trace metal pyritization (DTMP) of Cu, Pb, Zn, Cr, Cd, Co, Mo, Ni, As, Hg, Mn versus the degree of pyritization

      表  1  痕量元素的活性态和黄铁矿态浓度

      Table  1.   Concentrations of pyrite and reactive trace elements

      表  2  柱状剖面上沉积物黄铁矿含量分布

      Table  2.   Pyrite distribution of sediments recovered in undisturbed cores

    • Berner, R.A., 1970. Sedimentary pyrite formation. Am. J. Sci. , 268: 1 -23. doi: 10.2475/ajs.268.1.1
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      Huerta-Diaz, M. A., Morse, J. W., 1990. A quantitative method for determination of trace metal concentrations in sedimentary pyrite. Mar. Chem. , 29: 119 -144. doi: 10.1016/0304-4203(90)90009-2
      Huerta-Diaz, M.A., Morse, J.W., 1992. Pyritization of trace metals in anoxic marine sediments. Geochim. Cosmchim. Acta, 56: 2681 -2702. doi: 10.1016/0016-7037(92)90353-K
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    出版历程
    • 收稿日期:  2004-03-09
    • 刊出日期:  2006-03-25

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