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长江中游湖泊沉积微结构特征与沉积环境

易朝路 吴显新 刘会平 王柏轩 许厚泽

易朝路, 吴显新, 刘会平, 王柏轩, 许厚泽. 长江中游湖泊沉积微结构特征与沉积环境[J]. 沉积学报, 2002, 20(2): 293-302.
引用本文: 易朝路, 吴显新, 刘会平, 王柏轩, 许厚泽. 长江中游湖泊沉积微结构特征与沉积环境[J]. 沉积学报, 2002, 20(2): 293-302.
YI ChaoLu, WU XianXin, LIU HuiPing, WANG BaiXuan, XU HouZe. Microfabric Properties of Lacustrine Sediments and Sedimentary Environments[J]. Acta Sedimentologica Sinica, 2002, 20(2): 293-302.
Citation: YI ChaoLu, WU XianXin, LIU HuiPing, WANG BaiXuan, XU HouZe. Microfabric Properties of Lacustrine Sediments and Sedimentary Environments[J]. Acta Sedimentologica Sinica, 2002, 20(2): 293-302.

长江中游湖泊沉积微结构特征与沉积环境

基金项目: 国家自然科学基金(批准号:49501003和49971081);中国科学院水生生物研究所东湖生态实验站(200105);中国科学院‘九五'重大项目ZK951A12020103资助
详细信息
    作者简介:

    易朝路,男,1959年出生,博士,研究,员第四纪地质与地貌

  • 中图分类号: P512.2

Microfabric Properties of Lacustrine Sediments and Sedimentary Environments

  • 摘要: 在长江中游的洪湖、东湖、网湖和大九湖等四个地点取得湖沼沉积物的钻孔样品,用偏光显微镜下和电子显微镜观察微结构特征并以此解释三种湖相粘土的成因和沉积环境的变化。在长江沿岸湖泊中,0.4~ 0.5kaBP以来形成的浅色粘土的微结构类型主要有 :显微层理构造、颗粒的定向性、较大的微孔隙和颗粒粒径,面与面或边与边接触方式。物源主要来自河流带来的泥沙.当时河湖相通,河流入湖水沙量大。 1~ 2.5kaBP期间形成的青色粘土的典型微结构是 :凝胶结构、絮凝结构、细颗粒粒径和小孔隙、低球度和淡水中心冈硅藻。主要是有机质胶体与粘土胶体相互作用形成的。此期间,河流带入湖泊的泥沙少,江汉平原拥有一个开阔、稳定、浮游生物较多的淡水湖泊环境。 0.4~ 1kaBP期间形成的黑色粘土的主要微结构类型是 :凝胶结构、大的圆孔隙和植物纤维的生物框架结构、呈双峰分布的孔隙。它主要是由于维管束植物残体大量积累形成的。当时江汉平原湖泊湖水变浅,大量挺水植物生长,有些湖泊沼已经沼泽化了。鱼骨框架结构证明,在 2.9~ 4kaBP的全新世温暖期山间盆地大九湖出现大量鱼类,但并没有导致喜温鱼类向上游明显迁徙。
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出版历程
  • 收稿日期:  2001-02-26
  • 修回日期:  2001-05-14
  • 刊出日期:  2002-04-10

目录

    长江中游湖泊沉积微结构特征与沉积环境

      基金项目:  国家自然科学基金(批准号:49501003和49971081);中国科学院水生生物研究所东湖生态实验站(200105);中国科学院‘九五'重大项目ZK951A12020103资助
      作者简介:

      易朝路,男,1959年出生,博士,研究,员第四纪地质与地貌

    • 中图分类号: P512.2

    摘要: 在长江中游的洪湖、东湖、网湖和大九湖等四个地点取得湖沼沉积物的钻孔样品,用偏光显微镜下和电子显微镜观察微结构特征并以此解释三种湖相粘土的成因和沉积环境的变化。在长江沿岸湖泊中,0.4~ 0.5kaBP以来形成的浅色粘土的微结构类型主要有 :显微层理构造、颗粒的定向性、较大的微孔隙和颗粒粒径,面与面或边与边接触方式。物源主要来自河流带来的泥沙.当时河湖相通,河流入湖水沙量大。 1~ 2.5kaBP期间形成的青色粘土的典型微结构是 :凝胶结构、絮凝结构、细颗粒粒径和小孔隙、低球度和淡水中心冈硅藻。主要是有机质胶体与粘土胶体相互作用形成的。此期间,河流带入湖泊的泥沙少,江汉平原拥有一个开阔、稳定、浮游生物较多的淡水湖泊环境。 0.4~ 1kaBP期间形成的黑色粘土的主要微结构类型是 :凝胶结构、大的圆孔隙和植物纤维的生物框架结构、呈双峰分布的孔隙。它主要是由于维管束植物残体大量积累形成的。当时江汉平原湖泊湖水变浅,大量挺水植物生长,有些湖泊沼已经沼泽化了。鱼骨框架结构证明,在 2.9~ 4kaBP的全新世温暖期山间盆地大九湖出现大量鱼类,但并没有导致喜温鱼类向上游明显迁徙。

    English Abstract

    易朝路, 吴显新, 刘会平, 王柏轩, 许厚泽. 长江中游湖泊沉积微结构特征与沉积环境[J]. 沉积学报, 2002, 20(2): 293-302.
    引用本文: 易朝路, 吴显新, 刘会平, 王柏轩, 许厚泽. 长江中游湖泊沉积微结构特征与沉积环境[J]. 沉积学报, 2002, 20(2): 293-302.
    YI ChaoLu, WU XianXin, LIU HuiPing, WANG BaiXuan, XU HouZe. Microfabric Properties of Lacustrine Sediments and Sedimentary Environments[J]. Acta Sedimentologica Sinica, 2002, 20(2): 293-302.
    Citation: YI ChaoLu, WU XianXin, LIU HuiPing, WANG BaiXuan, XU HouZe. Microfabric Properties of Lacustrine Sediments and Sedimentary Environments[J]. Acta Sedimentologica Sinica, 2002, 20(2): 293-302.
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