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dc.contributor.author冯华
dc.contributor.author高爱国
dc.contributor.author朱旭旭
dc.contributor.author汪卫国
dc.contributor.author倪冠韬
dc.contributor.author彭建平
dc.date.accessioned2016-05-17T02:28:49Z
dc.date.available2016-05-17T02:28:49Z
dc.date.issued2014-8-15
dc.identifier.citation应用海洋学学报,2014,(3):124-130
dc.identifier.issn2095-4972
dc.identifier.otherTWHX201403018
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/104748
dc.description.abstract为探究闽江下游及河口区粘土矿物的含量分布特征,于2009年在该区域采集表层沉积物样品25个,利用X射线衍射进行了粘土矿物的含量测定.结果表明粘土矿物的相对百分含量范围分别为:高岭石(33%~47%,平均值为42%),伊利石(27%~43%,平均值为34%),绿泥石(20%~29%,平均值为24%),蒙脱石(0%~3%,平均值为1%).在显著水平为0.01时,伊利石与高岭石、绿泥石的含量呈显著负相关关系,伊利石与高岭石的相关系数为-0.825,伊利石与绿泥石的相关系数为-0.611.通过对闽江下游及河口区粘土矿物含量分布的分析及与中国近海的粘土矿物含量分布对比,闽江下游及河口区粘土矿物的含量分布受物质来源、地形条件、介质环境、粘土矿物自身颗粒大小形态和人类活动的影响.相对于黄河和长江,闽江表层沉积物中具有较高的高岭石含量,较低的伊利石含量,与珠江的粘土矿物组合特征类似,这反映出气候效应的影响.
dc.description.abstractIn order to explore the distribution of clay minerals contents in Minjiang River,25 surface sediment samples were collected in 2009.In this paper,clay mineral content of the Minjiang River was measured with X-ray diffraction.The result showed that clay minerals were composed of kaolinite( 42%),illite( 34%),chlorite( 24%)and montmorillonite( 1%).There are good negative correlations of illite with kaolinite and with chlorite.At the significant level of 0.01,the correlation coefficient between illite and kaolinite is- 0.825,and the correlation coefficient between illite and chlorite is- 0.611.The terrigenous kaolinite and illite at sites near the estuary are determined and distributions of clay minerals contents between the Minjiang River and offshores in China compared.In addition to the matter source influence,the distribution of clay minerals contents in Minjiang River are affected by matter source,terrain conditions,depositional environment,particle size and shape of clay minerals and the anthropogenic impacts.In contrast to the Yellow River and the Yangtze River,Minjiang River,similar to that of the Pearl River,has higher content of kaolinite and lower content of illite which suggested the evident of climatic impacts.
dc.description.sponsorship国家自然科学基金资助项目(41076122;40976037;41376050)
dc.language.isozh_CN
dc.subject海洋化学
dc.subject表层沉积物
dc.subject粘土矿物
dc.subject分布特征
dc.subject气候效应
dc.subject闽江
dc.subjectmarine chemistry
dc.subjectsurface sediment
dc.subjectclay minerals
dc.subjectdistribution characteristic
dc.subjectclimate impact
dc.subjectMinjiang River
dc.title闽江下游及河口区表层沉积物粘土矿物含量分布特征及其环境意义
dc.title.alternativeDistribution characteristic of clay minerals contents in Minjiang River and its environmental significance
dc.typeArticle


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