| 两广庞西垌-金山成矿带银金矿床分形性研究 |
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| 引用本文：.1999.Fractal characteristics of silver-gold deposits in the Pangxidong-jinshan metallogenic belt, south China[J].Mineral Deposits,18(2):183~188 |
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| 基金项目:国家科技部攀登预选项目（95-预-39-V2) |
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| 中文摘要:庞四垌-金山银金成矿带位于广东廉江县和广西博白|县的交界，区内银金矿床以银为主，伴有金、铅锌等有益组分，属于蚀变破碎岩型银金矿床。研究表明，银金矿床具有明显的分形性，利用品位-频度的双对数坐标图求得的矿床品位的分维值D<1，反映了在区域内银品位分布的差异较大，银品位的频率分布明显偏离正态分布。利用储量-分形模型对区内银的储量进行了预测，证实该方法具有较高的可靠性和良好的适宜性，预测结果显示测区具有良好的资源前景。 |
| 中文关键词:分形 银金矿床 庞西洞-金山 |
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| Fractal characteristics of silver-gold deposits in the Pangxidong-jinshan metallogenic belt, south China |
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| Abstract:The Pangxidong-Jinshan silver-gold deposit, located in the border area between Guangdong and Guangxi, is a silver deposit associated with Au, Pb and Zn, belonging to alteration rock type. The fractal dimension of silver grade-frequency of the ore deposit shows the spatial distribution and change of silver grade in tle orebody. The fractal dimension D <1 indicates remarkable change in spatial distribution and obvious deviation from the normal distribution of Ag grade. Using silver grade-reserve fractal mineralization pattern, one can forecast the possible silver reserves in the mining area. The forecast result shows that the area has promising resource potential, and the grade-reserve fractal mineralization pattern is reliable and suitable for ore-prospecting in this area. |
| keywords:Fractal, silver-gold deposit, Pangxidong-Jinshan |
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