| 北部湾表层黏土矿物分布特征及物源研究 |
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| 引用本文： | 靳华龙,万世明,张晋,宋泽华,赵德博,黄杰,于兆杰,李安春.北部湾表层黏土矿物分布特征及物源研究[J].海洋科学,2019,43(1):75-84. |
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| 作者姓名： | 靳华龙 万世明 张晋 宋泽华 赵德博 黄杰 于兆杰 李安春 |
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| 作者单位： | 中国科学院海洋研究所,山东青岛 266071;中国科学院海洋地质与环境重点实验室,山东青岛 266071;中国科学院大学,北京 100049;中国科学院海洋研究所,山东青岛 266071;中国科学院海洋地质与环境重点实验室,山东青岛 266071 |
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| 基金项目： | 国家自然科学基金（41622603，41576034） |
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| 摘 要： | 利用X射线衍射(XRD)对北部湾表层沉积物中黏土矿物组成和结晶学特征进行了详细研究,揭示了源区和洋流对该区沉积物搬运和分布的控制机制。结果表明,北部湾表层沉积物中黏土矿物组成以伊利石、蒙脱石和高岭石为主,含有少量的绿泥石。在空间分布上,蒙脱石含量表现为中部高近岸低;伊利石含量表现为西南高东北低,绿泥石组分含量与之类似;高岭石含量表现为东北高,西南低。伊利石结晶度指数和化学指数平均分别为0.25°(Δ2θ)和0.5,表明伊利石结晶程度极好,为富Al伊利石,来源于化学风化作用占主导的源区。黏土矿物物源分析表明,红河是北部湾伊利石、绿泥石和蒙脱石的主要物源,其中蒙脱石因受沉积分异作用影响而在研究区中部富集;高岭石受到了红河、珠江以及广西和海南岛沿岸河流物质输入的共同影响。本研究结果对理解北部湾沉积物"源-汇"过程和古环境有重要参考意义。
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| 关 键 词： | 北部湾 南海 表层沉积物 黏土矿物 物源 |
| 收稿时间： | 2018/4/23 0:00:00 |
| 修稿时间： | 2018/12/16 0:00:00 |
Distribution and provenance of clay minerals in surface sed-iments of the Beibu Gulf, the South China Sea |
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| JIN Hua-long,WAN Shi-ming,ZHANG Jin,SONG Ze-hu,ZHAO De-bo,HUANG Jie,YU Zhao-jie and LI An-chun.Distribution and provenance of clay minerals in surface sed-iments of the Beibu Gulf, the South China Sea[J].Marine Sciences,2019,43(1):75-84. |
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| Authors: | JIN Hua-long WAN Shi-ming ZHANG Jin SONG Ze-hu ZHAO De-bo HUANG Jie YU Zhao-jie and LI An-chun |
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| Institution: | Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;CAS Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;University of the Chinese Academy of Sciences, Beijing 100049,Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;CAS Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;CAS Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;University of the Chinese Academy of Sciences, Beijing 100049,Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;CAS Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;University of the Chinese Academy of Sciences, Beijing 100049,Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;CAS Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;CAS Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;CAS Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071 and Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;CAS Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071 |
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| Abstract: | |
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| Keywords: | the Beibu Gulf the South China Sea surface sediments clay minerals provenance |
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