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浙江萤石矿床的空间分布
SPATIAL DISTRIBUTION OF FLUORITE DEPOSITS IN ZHEJIANG PROVINCE
【摘要】 本文应用单元递归法和分形丛集分析方法对浙江 3个不同区域范围内 6 2 9个萤石矿床 (点 )的空间及储量数据进行统计分析 ,揭示了这些矿床在空间上遵循分形丛集分布 ,在 0 .5~15km尺度内具有较一致的分维数 ,分别为 0 .539、 0 .552和 0 .4 0 5,表明这些矿床尽管成矿地质环境及赋矿岩性不尽相同 ,但可能有着同一的成因机制 ;萤石矿床丛集分布形成的密集区的空间尺度为 2 50 km2 左右。在矿产勘查中可以依据这一尺度来制定既经济又不致于漏掉重要矿床密集区的最佳勘查网度 ,以达到快速逼近潜在矿床密集区的目的。
【Abstract】 This paper has applied the cell- recurrence method and fractal box- counting method to the statistical analysis of 6 2 9fluorite deposits or ore spots in three different areas of Zhejiang Province.The authors have reached the following conclusions:( 1 ) All fluorite deposits in three areas are exclusively in fractal clustering distribution in space and have fairly similar fractal dimensionalities ( 0 .5 39,0 .5 5 2 and 0 .40 5 respectively) ,implying that,though dif- ferent in ore- forming geological environments and host rocks,these fluorite deposits might have been controlled by a general ore- forming mechanism.( 2 ) The densely mineralized area of cluster distribution is spatially characterized by about 2 5 0 km2 .In mineral exploration, this technique will contribute to establishing optimum exploration network,which is eco- nomical and can surely detect important deposits
【Key words】 fluorite deposit; cell- recurrence method and fractal box- counting method; spatial scale of densely mineralized area;
- 【文献出处】 矿床地质 ,MINERAL DEPOSITS , 编辑部邮箱 ,2000年03期
- 【分类号】P619.215
- 【被引频次】13
- 【下载频次】336