分形理论与成矿作用  

FRACTAL THEORY AND ORE-FORMING

作　　者：张哲儒[1] 毛华海[1] 

机构地区：[1]中国科学院地球化学研究所,贵州贵阳550002

出　　处：《地学前缘》2000年第1期195-204,共10页Earth Science Frontiers

基　　金：国家攀登预选资助项目!(95预25);国家自然科学基金资助项目!(49873027)

摘　　要：总结近年来分形理论在成矿作用研究中的应用及取得的主要成果 ,主要表现在 :矿床的空间分布具分形和多重分形性质 ,表明成矿作用在一定的空间范围内具标度不变性 ;钻孔中金属品位的频率分析表明品位的分布具分形和多重分形结构 ,其结构与品位高低有关 ,对预测深部矿体有指导意义 ;矿床的规模、品位的分布也具分形和多重分形结构 ,不同规模的矿床具有不同的分形结构 ,暗示不同规模的矿床具有不同的成矿地质背景和机制 ;元素在微观矿物表面及区域大面积的分布也具有分形和多重分形结构 ,其结构类型与其成因条件及机制有关。Application of fractal to ore\|forming and its results in recent years are summed as follows:Spatial distribution of ore deposits is a fractal and multifractal structure indicating that ore\|forming process follows the scale invariance law in certain scope.Grade\|frequency fractal and multifractal is confirmed according to the distribution characters of metal grade in drills.The fractal structure is concerned in the value of grade that may calculate the ore bodies at depth.Frequency\|size and size\|grade distribution are also characterized by fractal and multifractal structure suggesting that ore deposits with different size are of different geological background and ore\|forming mechanism..The fractal of distribution of elements both on micro surface of minerals and on microscope is confirmed and the fractal structure are related to the conditions and mechanism of formation.

关 键 词：成矿作用 矿床分布 储量 品位 分形理论 

分 类 号：P611[天文地球—矿床学] P611.5[天文地球—地质学]