内蒙古乌梁素海湖泊沉积物元素地球化学特征及其影响因素

马龙, 吴敬禄. 内蒙古乌梁素海湖泊沉积物元素地球化学特征及其影响因素[J]. 海洋地质与第四纪地质, 2010, 30(3): 119-125. doi: 10.3724/SP.J.1140.2010.03119
引用本文: 马龙, 吴敬禄. 内蒙古乌梁素海湖泊沉积物元素地球化学特征及其影响因素[J]. 海洋地质与第四纪地质, 2010, 30(3): 119-125. doi: 10.3724/SP.J.1140.2010.03119
MA Long, WU Jinglu. ELEMENT GEOCHEMICAL CHARACTERISTIC OF LAKE SEDIMENTS AND ITS INFLUENCE FACTORS IN ULANSUHAI LAKE, INNER MONGOLIA[J]. Marine Geology & Quaternary Geology, 2010, 30(3): 119-125. doi: 10.3724/SP.J.1140.2010.03119
Citation: MA Long, WU Jinglu. ELEMENT GEOCHEMICAL CHARACTERISTIC OF LAKE SEDIMENTS AND ITS INFLUENCE FACTORS IN ULANSUHAI LAKE, INNER MONGOLIA[J]. Marine Geology & Quaternary Geology, 2010, 30(3): 119-125. doi: 10.3724/SP.J.1140.2010.03119

内蒙古乌梁素海湖泊沉积物元素地球化学特征及其影响因素

  • 基金项目:

    国家重点基础研究发展规划项目(2006FY110600)

    国家自然科学基金项目(40971117)

详细信息
    作者简介: 马龙(1982-),男,博士生,主要从事湖泊沉积与环境研究,E-mail:malong@live.cn
  • 中图分类号: P595

ELEMENT GEOCHEMICAL CHARACTERISTIC OF LAKE SEDIMENTS AND ITS INFLUENCE FACTORS IN ULANSUHAI LAKE, INNER MONGOLIA

  • 在210Pb同位素测年的基础上,通过对乌梁素海沉积物元素含量的分析,研究了沉积物中元素的变化规律,探讨了沉积物中元素变化的影响因素,结果表明沉积物中Ca、Sr、Cu、Mn、P等元素随深度加深含量下降,其余元素含量随深度加深呈增加的趋势。通过对元素富集系数的变化规律进行研究后,发现Ca、Sr、Cu、Mn、P等元素的富集系数与其含量变化趋势基本相同,反映了该组元素主要受沉积通量的影响;Al、K、Be、Ba、Mg等富集系数与其含量的变化趋势具明显差异,与黏土含量变化一致;而Cr、Fe、Ni、V、Co、Pb、Zn等重金属元素可能受到黏土吸附作用影响。最后,应用有序样品聚类分析方法,对元素这一环境代用指标在研究湖泊历史演化中的作用进行了探讨,研究表明:在湖泊演化过程中,湖泊的形成、20世纪70年代入湖水量的急剧改变以及近年来河套灌区化肥用量逐年加大、大量生活污水和工业废水排入等人类活动的增强等事件,均在湖泊沉积物元素的变化中有所体现。
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出版历程
收稿日期:  2009-11-19
修回日期:  2010-01-21

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