| 长江流域沉积物黏土矿物组合特征及物源指示意义 |
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| 引用本文： | 何梦颖,郑洪波,黄湘通,贾军涛,李玲.长江流域沉积物黏土矿物组合特征及物源指示意义[J].沉积学报,2011,29(3):544-551. |
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| 作者姓名： | 何梦颖 郑洪波 黄湘通 贾军涛 李玲 |
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| 作者单位： | 同济大学海洋地质国家重点实验室 上海 200092 |
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| 基金项目： | 国家自然科学基金重点项目(批准号:40830107); 联合国教科文组织IGCP项目(编号:IGCP-581)资助 |
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| 摘 要： | 通过X射线衍射方法系统分析了长江流域(干流和主要支流)表层沉积物(及部分表土)的黏土矿物,结果显示:长江流域黏土矿物主要由伊利石、绿泥石、高岭石和蒙脱石组成,伊利石含量最高,蒙脱石含量最低;长江干流上、中、下游黏土矿物含量基本一致,支流表现出明显区别,与流域不同的源岩类型和风化强度相对应.长江干流伊利石结晶度和化学指数...
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| 关 键 词： | 长江 黏土矿物 物源 风化作用 |
| 收稿时间： | 1900-01-01 |
Clay Mineral Assemblages in the Yangtze Drainage and Provenance Implications |
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| HE Meng-ying,ZHENG Hong-bo,HUANG Xiang-tong,JIA Jun-tao,LI Ling.Clay Mineral Assemblages in the Yangtze Drainage and Provenance Implications[J].Acta Sedimentologica Sinica,2011,29(3):544-551. |
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| Authors: | HE Meng-ying ZHENG Hong-bo HUANG Xiang-tong JIA Jun-tao LI Ling |
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| Institution: | State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092 |
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| Abstract: | The X-rays diffraction analysis (XRD) is applied to measure the clay mineral compositions of the surface sediments in the Yangtze River drainage basin.The results show that the clay mineral compositions of the sediments display a similar pattern along the main stream,with highest content of illite and lowest content of smectite,but they are different from that in the tributary rivers,these can be responded to the heterogeneous source rocks and weathering intensity.The illite crystallity and the illite chemi... |
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| Keywords: | the Yangtze River clay mineral provenance weathering |
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