| 黄土高原黄土的平均化学成分与地壳克拉克值的类比 |
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| 引用本文： | 文启忠,刁桂仪,潘景瑜,吴明清. 黄土高原黄土的平均化学成分与地壳克拉克值的类比[J]. 土壤学报, 1996, 33(3): 225-231 |
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| 作者姓名： | 文启忠 刁桂仪 潘景瑜 吴明清 |
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| 作者单位： | 中国科学院广州地球化学研究所, 510640;中国科学院广州地球化学研究所, 510640;中国科学院广州地球化学研究所, 510640;中国科学院贵阳地球化学研究所 |
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| 摘 要： |
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| 关 键 词： | 黄土 化学成分 地壳克拉克值 黄土高原 |
| 收稿时间： | 1994-09-22 |
COMPARISON OF AVERAGE CHEMICAL COMPOSITION OF LOESS IN LOESS PLATEAU WITH CLARK VALUES OF CRUST |
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| Wen Qizhong,Diao Guiyi,Pan Jingyu and Wu Mingqing. COMPARISON OF AVERAGE CHEMICAL COMPOSITION OF LOESS IN LOESS PLATEAU WITH CLARK VALUES OF CRUST[J]. Acta Pedologica Sinica, 1996, 33(3): 225-231 |
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| Authors: | Wen Qizhong Diao Guiyi Pan Jingyu Wu Mingqing |
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| Affiliation: | Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640;Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640;Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640;Institute of Geochemistry, Chinese Academy of Sciences, Guiyang |
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| Abstract: | Authors systematically collected 147 samples(at last constituting 100 samples for analysis) of Malan Loess in Loess Plateau and 54 elements were analysed for each sample.Abundance of each element was calculated by means of weighted average method.The results showed that chemical compositions of loess were very similar to each other in all parts of Loess Plateau with a good characteristic of homogenity.Moreover,the average chemical compositions of loess were very close to Clark values of crust,which are used at present.Therefore,the average chemical compositions of loess may be used to represent average chemical constituents of comtinetal upper crust.From theoritical point of view,typical eolian loess has a very large area of material sources and was also mixed homogeneously.Consequently,using it to calculate Clark values of upper cmst should be more reasonable,more representative and more substantial than previous methods.it could be a new way for investigation of Clark values of crust and a new field of loess geochemistry study in future. |
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| Keywords: | Chemical composition of loess Clark values of crust Loess Plateau |
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