| 南沙海槽南部海区表层沉积物重金属元素含量及其影响因素 |
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| 引用本文： | 陈 忠,古森昌,颜 文,刘芳文. 南沙海槽南部海区表层沉积物重金属元素含量及其影响因素[J]. 海洋科学, 2002, 26(1): 50-53 |
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| 作者姓名： | 陈 忠 古森昌 颜 文 刘芳文 |
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| 作者单位： | 中国科学院南海海洋研究所边缘海开放室,广州,510301 |
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| 基金项目： | 国家自然科学基金资助项目40076018号，中科院南海海洋研究所边缘海开放室基金资助项目BYH9908号，中科院南海海洋研究所所长基金资助项目0200SJ000501号 |
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| 摘 要： | 南沙海槽南部海区表层沉积物重金属元素表现为亲陆性,丰度为:Ba>Sr>Zn>Ni>Zr>Pb>Cr>Cu>Co,浓集程度为Ba>Sr>Cr>Zr>Pb>Zn>Co>Ni>Cu,元素Cu-Zn,Cu-Ni,Cu-Ba及Ba-Zn呈明显正相关,Cu,Ni,Ba,Zn,Cr与水深变化关系较为密切。元素与CaCO3含量、氧化物含量、粒度组成的相关系数表明:（1）Pb,Co,Zr,既存在于陆源碎屑矿物晶格中,又以吸附状态被黏土吸附,还受碳酸盐沉积影响。（2）Sr,主要受生物碳酸盐沉积作用影响。（3）Cu,Zn,Ni,Cr,Ba,主要受黏土的吸附作用及铁锰氧化物的影响。
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| 关 键 词： | 南沙海槽南部海区 重金属元素 相关系数 影响因素 表层沉积物 丰度 南海 |
| 收稿时间： | 2000-11-13 |
| 修稿时间： | 2000-11-13 |
CONTAINED IN SURFACE SEDIMENTS AT SOUTH NANSHA TROUGH AND ADJACENT SEA AREA AND ITS AFFECTING FACTORS |
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| CHEN Zhong GU Sen-chang YAN Wen LIU Fang-wen. CONTAINED IN SURFACE SEDIMENTS AT SOUTH NANSHA TROUGH AND ADJACENT SEA AREA AND ITS AFFECTING FACTORS[J]. Marine Sciences, 2002, 26(1): 50-53 |
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| Authors: | CHEN Zhong GU Sen-chang YAN Wen LIU Fang-wen |
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| Abstract: | There are nine heavy metal elements such as Cu, Pb, Zn, Ni, Co, Cr, Sr, Ba, Zr, in Nansha Trough and adjacent sea area. The abundance order of heavy metal elements is Ba > Sr > Zn> Ni > Zr > Pb > Cr > Cu > Co, and the concentration order is Ba > Sr > Cr > Zr > Pb > Zn > Co > Ni > Cu. There are obviously positive correlations between internal elements just like Cu-Zn, Cu-Ni, Cu-Ba and Ba-Zn. The elements can be divided into three groups by the fair correlation between elements and CaCO3 ,oxides ,grain size. (1)Cu, Zn,Ni,Cr,Ba,which are absorpated on clay minerals and Fe~Mn oxide collids. (2) Sr,which affacted mainly by carbonate sediment. (3) Pb.Co.Zr, which affect by many factors. |
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| Keywords: | South Nansha Trough and adjacent sea area Heavy metal element Correlation coefficient Affecting factor |
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