| 钦州湾海底沉积物Hg元素分布特征分析 |
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| 引用本文： | 夏真.钦州湾海底沉积物Hg元素分布特征分析[J].海洋通报,2010,29(1). |
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| 作者姓名： | 夏真 |
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| 作者单位： | 广州海洋地质调查局,广东,广州510760 |
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| 基金项目： | 国土资源部中国地质调查局的地质调查项目(编号:1212010611403),项目的承担单位为广州海洋地质调查局 |
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| 摘 要： | 根据2006年5月获得的海底表层沉积物和柱状样品测试资料,分析了钦州湾海底沉积物中有害元素Hg的平面分布和垂向分布特征。结果显示:平面分布上,钦州湾口门附近Hg含量较高,Hg影响较大,湾内的Hg含量则较小,湾外向外海方向Hg含量逐渐降低;垂向分布上,海底表层的Hg含量高,向下则逐渐降低,至海底表层70cm以下,Hg值趋于稳定。根据沉积速率,确认约700年前开始,钦州湾受人类活动的影响逐渐增加,至约130年前,人类活动影响加剧。对比历史事件,认为钦州湾海底沉积物Hg含量变化与人类活动相关。总体上,钦州湾海底沉积物Hg测量值均低于标准值,说明其环境目前尚好。
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| 关 键 词： | 沉积物 Hg元素 分布 特征 |
The characteristics of Hg distribution in the sediments of Qinzhou Bay, Guangxi |
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| XIA Zhen.The characteristics of Hg distribution in the sediments of Qinzhou Bay, Guangxi[J].Marine Science Bulletin,2010,29(1). |
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| Authors: | XIA Zhen |
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| Institution: | Guangzhou Marine Geological Survey;Guangzhou;510760;China |
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| Abstract: | Along with the development in Qinzhou Bay of Guangxi,its environment will be under more pressure.According to the data of soil sample test in 2006,the paper analyzes the characteristics of Hg distribution in the bay.Results show that Hg is mainly from ships and rivers.The value of Hg is the biggest outside the gate of Qinzhou Bay,more inside the gate,and less towards offshore area.From the core JX05,it shows that the Hg value is getting higher from lower to upper.Below 70cm of the core,the value of Hg is go... |
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| Keywords: | sediments Hg distribution characteristics |
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