| 龚玉爽,艾国梁.广西平果那豆矿区堆积矿演化控制机制和铝品位分形特征的地质意义探讨[J].矿产勘查,2017,8(1):62-66 |
| 广西平果那豆矿区堆积矿演化控制机制和铝品位分形特征的地质意义探讨 |
| Discussion on evolution-contralling mechanism of accumulated bauxite orebody and geological significance of fractal characteristics of aluminum grade distribution |
| 投稿时间：2016-03-18 |
| DOI： |
| 中文关键词: 广西平果 那豆矿区 铝土矿 分形理论 |
| 英文关键词: Nadou deposit area, bauxite deposit, fractal theory, Pingguo, Guangxi |
| 基金项目: |
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| 摘要点击次数: 1787 |
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| 中文摘要: |
| 文章以那豆矿区堆积矿为研究对象,阐述了原生矿层、褶皱构造和岩溶地貌对堆积矿的“三元控制”机制,并通过对两种矿石类型的矿化数据的分析,得出了由于地貌的差异导致堆积矿受到的风化作用强度不同,进而使堆积矿矿化程度产生差异。文章计算了两种矿石类型铝品位的分维值,得出斜坡型堆积矿的分维值小于洼地型堆积矿的分维值,对不同地貌下堆积矿的分布和保存规律进行了分析研究,为铝土矿勘探提供了新的证据。 |
| 英文摘要: |
| Taking Nadou accumulated bauxite as a case study, the jointly ore-controlling mechanism of “primary ore layer, fold structure and Karst landform” for the accumalted bauxite deposit was discussed in the paper. Based on the integrated analysis of the mineralized data for two types of accumulated bauxite orebodies, it is concluded that the variation of bauxite mineralization resulted from different levels of weathering process due to two kinds of geomorphologies.Based on fractural theory, the fractal dimension values of aluminum grade of two types of accumulated bauxit orebodies were calculated, the result indicates that the fractal dimension value of hill-slope accumulated bauxite orebody is smaller than that of depression and collapse accumulated bauxite orebody. Finally, the distribution and preservation of the accumulated bauxite orebody under different geomorphological conditions were analyzed, and the study result can provide new evidences for the future prospecting. |
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