| 江西德兴铜厂斑岩体铜品位的分形结构 |
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| 引用本文： | 金章东.江西德兴铜厂斑岩体铜品位的分形结构[J].矿床地质,1998,17(4):363-368. |
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| 作者姓名： | 金章东 |
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| 作者单位： | 南京大学成矿作用国家重点实验室,南京 |
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| 摘 要： | 铜厂斑岩体铜品位空间分布的分形研究表明，７个钻孔的铜品分布具有统计自相似性。铜吕位分维值由斑岩体南东侧向北西侧逐次增大，并在上盘表现为双重分维结构，表明铜厂玉岩体铜主要来自岩浆。
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| 关 键 词： | 斑岩体 铜品位 分形结构 铜矿体 |
Fractal dimension structure of copper grade in Dexing porphyry body, Jiangxi Province |
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| Jin Zhangdong.Fractal dimension structure of copper grade in Dexing porphyry body, Jiangxi Province[J].Mineral Deposits,1998,17(4):363-368. |
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| Authors: | Jin Zhangdong |
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| Abstract: | Through fractal study of copper grade in Tongchang porphyry body by using the principles and methods of fractal geometry,it is known that the distribution of copper grades in seven drill holes is of self resemblance.The fractal dimension( D ) of copper grade in the northwesern part is higher than that in the southeastern part of the porphyry body,and there are dual fractal dimension structures in the northwestern part.Combined with the attitude of the porphyry body and localities of porphyry copper orebodies,the fractal dimension ( D ) can provide some quantitative information for the distribution of ore grades affected by intrusive orientation of porphyry magma,direction of ore fluid migration and infiltration of copper and other ore materials from wall rocks.Data obtained show that copper in Tongchang porphyry body came mainly from intermediate acid magma,with merely a small portion from wall rocks(concentrated exclusively in the lower low grade part of the hanging wall of the porphyry body),and that the higher the D value of the copper grade,the more favorable the ore forming conditions,and the larger the orebodies. |
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| Keywords: | fractal porphyry body copper grade Dexing |
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