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粒度在沉积物物源判别中的运用
引用本文:安福元,马海州,樊启顺,周宝,张启兴.粒度在沉积物物源判别中的运用[J].盐湖研究,2012,20(1):49-56.
作者姓名:安福元  马海州  樊启顺  周宝  张启兴
作者单位:1. 中国科学院青海盐湖研究所,青海西宁810008;中国科学院研究生院,北京100039
2. 中国科学院青海盐湖研究所,青海西宁,810008
3. 青海省地质环境监测总站,青海西宁,810008
4. 青海省水文地质、工程地质、环境地质调查院,青海西宁,810008
基金项目:国家自然科学基金资助项目(41002060)
摘    要:自然界中沉积物的组成和成因具有多样性。应用粒度方法可以区分、提取和判别沉积物中的各个组分。粒度方法主要有频率曲线和累积曲线分布法、数学函数组分提取法(包括Weibull分布函数拟合法、端元模型分析法、标准偏差法、粒度分维法等)和粒度参数判别公式法。综合应用上述方法可有效地判别出单一沉积物的物质来源或者复杂沉积物中的各个组分,而这些方法被前人广泛地应用于湖泊研究中,提取了过去的环境变化信息,也指导了作者在盐湖沉积中的研究工作。

关 键 词:粒度  沉积物  物源判别

The Application of Grain size Analysis in Sediments Provenance Discriminance
AN Fu-yuan,MA Hai-zhou,FAN Qi-shun,ZHOU Bao,ZHANG Qi-xing.The Application of Grain size Analysis in Sediments Provenance Discriminance[J].Journal of Salt Lake Research,2012,20(1):49-56.
Authors:AN Fu-yuan  MA Hai-zhou  FAN Qi-shun  ZHOU Bao  ZHANG Qi-xing
Institution:1.Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China; 2.Graduate University of Chinese Academy of Sciences,Beijing,100039,China; 3.Geology and Environment monitoring station of Qinghai Province,Xining,810008,China; 4.The Survey Institute of hydrogeology,engineering geology and environmental geology of Qinghai Province,Xining,810008,China)
Abstract:Lots of sediments have been proven to be the sum all kinds of sedimentary components,these different components can be discriminated and separated by grain size analysis and they represented the process of paleoclimate,so the grain size analysis bears important significance in the study of sediment origin.There are three main methods for the discrimination of sediment origin through grain size: the feature of frequency curves and the accumulative curves,the way of mathematic functions(including Weibull function,the end member modeling algorithm,the method of grain size classes vs standard deviation values and the grain size fractal dimension) and the grain-size parameters discriminant functions.Above methods can distinguish conveniently the origin of sediments or part the respective components from the multiple sediments,and they widely used in the research realm of sediments origin.It also offered a study tool of sediment origin to the author of this paper.
Keywords:Grain size  Sediments  Provenance discriminance
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