稀土配分模式在确定西天山风积物干扰粒级中的应用研究
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摘要
系统研究了西天山地区水系沉积物在不同粒级的主要元素分布特征和风积黄土的粒级、元素含量分布特点。应用稀土配分模式的方法证实了水系沉积物中有风积黄土掺入。同时发现了风积黄土掺入对水系沉积物中元素含量产生了干扰作用,此种干扰作用随着采样粒级的变化而变化。通过对比,认为水系沉积物采样应该大于80目才能有效避免风积黄土的干扰,该研究为制定西天山地区水系沉积物测量的方法技术提供了重要依据。
The article systematically studied the primary elements distribution of different grades of stream sediments as well as the grain size and element content characteristics of aeolian loess.The REE partitioning method has confirmed the existence of aeolian loess in stream sediments,what′s more,the involvement has disturbed the content of elements in the sediments,and the interference varies as the sample particle size changes.The study supply important gist for the method and technique of stream sediment measuring,and suggest that the best sample grade should be greater than 80mesh to avoid the interference of aeolian loess.
The article systematically studied the primary elements distribution of different grades of stream sediments as well as the grain size and element content characteristics of aeolian loess.The REE partitioning method has confirmed the existence of aeolian loess in stream sediments,what′s more,the involvement has disturbed the content of elements in the sediments,and the interference varies as the sample particle size changes.The study supply important gist for the method and technique of stream sediment measuring,and suggest that the best sample grade should be greater than 80mesh to avoid the interference of aeolian loess.
引文
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Ma L,Jin L,Brantley S L.How mineralogy and slope aspect affect REE release and fractionation during shale weathering in the Susquehanna/Shale Hills Critical Zone Observatory.Chemical Geology,2011a,290:31-49.
Ma Y,Lu W,Lin C.Downstream patterns of bed sedimentborne metals,minerals and organic matter in a stream system receiving acidic mine effluent:A preliminary study[J].Journal of Geochemical Exploration,2011b,110:98-106.
于海峰,王福君,潘明臣.西天山造山带区域构造演化及其大陆动力学解析[J].西北地质,2011(总178期),44(2):25-40.Yu Haifeng,Wang Fujun,Pan Mingchen.Regional Tectonic Evolution and Continental Dynamic characteristics of Western Tianshan Orogenic Belt[J].Northwestern Geology,2011(Sum 178),44(2):25-40.
肖淳,于海涛,刘传朋.稀土元素对鲁西铜石、铜井、龙宝山杂岩体的同源性制约[J].西北地质,2012,45(3):26-31 .Xiao Chun,Yu Haitao,Liu Chuanpeng.Rare Earth Elements for the Homology Restriction of the Tongshi Tongjing and Longbaoshan Complex Body in Luxi[J].Northwestern Geology,2012,45(3):26-31.
余素华,文启忠,刁桂仪.黄河中游地区马兰黄土及其上部土壤的平均化学成分[J].环境科学,1982,3(4):47 -50.Yu Suhua,Wen Qizhong,Diao Guiyi.Area in the middle reaches of the Yellow River upper malan loess and the average chemical composition of the soil[J].Environmental Science,1982,3(4):47-50.
刘英俊,邱德同.勘查地球化学[M].上海:科学出版社,1987:172-185.Liu Yingjun,Qiu Detong.Science of Exploration Geochemistry[M].Science press,Shanghai,1987:172-185.
黄荣辉.高等地球化学[M].上海:科学出版社,1998:159 -194.Huang Ronghui.The Higher Geochemistry[M].Science press,Shanghai,1998:159-194.
熊毅,许冀泉,蒋剑敏.中国土壤胶体研究Ⅰ.黄土胶体的矿物组成和性质[J].土壤学报,1958,6(2):89-98.Xiong Yi,Xu Jiquan,Jiang Jianmin.China’s soil colloid researchⅠ.The mineral composition and nature of loess colloid[J].Acta Pedologica Sinica,1958,6(2):89-98.
刘东升.黄土与环境[M].上海:科学出版社,1985:239.Liu Dongsheng.The loess and the environment[M].Science press,Shanghai,1985:239.
张玉芬,李长安,邵磊,等.“巫山黄土”的稀土元素特征与成因[J].地球科学-中国地质大学学报,2013,38(1)181 -187.Zhang Yufen,Li Changan,Shao Lei,et al.REE Compositions of the“Wushan Loess”and Its Origin[J].Earth Science-Journal of China University of Geosciences,2013,38(1):181-187.
张华,杨少平,刘应汉.新疆西昆仑地区干旱荒漠景观区化探方法技术初步研究[J].新疆地质,2001,19(3):221 -227.Zhang Hua,Yang Shaoping,Liu Yinghan.The Preliminary Study of Geochemical Explorational Methods in Dry Desert Landscape Region of the Western Kunlun,XinJiang[J].XinJiang Geology,2001,19(3):221-227.
张华,刘拓,孔牧.新疆东天山地区地球化学勘查方法技术研究[J].地质与勘探,2003,38(6):99-102.Zhang Hua,Liu Tuo,Kong Mu.Supergene Geochemistry and Geochemical Exploration Technology in the Eastern Tianshan Area,XinJiang[J].Geology and Prospecting,2003,38(6):99-102.
Feng J-L,Hu Z-G,Ju J-T,Zhu L-P.Variations in trace element(including rare earth element)concentrations with grain sizes in loess and their implications for tracing the provenance of eolian deposits[J].Quaternary International,2011,236:116-126.
Garzanti E,AndóS,France-Lanord C,Censi P,Vignola P,Galy V,Lupker M.Mineralogical and chemical variability of fluvial sediments 2.Suspended-load silt(Ganga-Brahmaputra,Bangladesh)[J].Earth and Planetary Science Letters,2011,302:107-120.
Harraz H Z,Hamdy M M,El-Mamoney M H.Multi-element association analysis of stream sediment geochemistry data for predicting gold deposits in Barramiyagold mine,Eastern Desert,Egypt[J].Journal of African Earth Sciences,2012,68:1-14.
Ma L,Jin L,Brantley S L.How mineralogy and slope aspect affect REE release and fractionation during shale weathering in the Susquehanna/Shale Hills Critical Zone Observatory.Chemical Geology,2011a,290:31-49.
Ma Y,Lu W,Lin C.Downstream patterns of bed sedimentborne metals,minerals and organic matter in a stream system receiving acidic mine effluent:A preliminary study[J].Journal of Geochemical Exploration,2011b,110:98-106.