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本文依据岩浆岩常量评价因子的系统分析和建立在模糊集合论基础上的矿化隶属度研究,得到了能识别包括金在内的10种多金属矿(Au、Cu、Mo、U、W、REE、Nb-Ta、Be和Sn)的母岩的方法。以江苏省岩浆岩为例,计算了有关岩体的金矿化隶属度,划分了4级找金靶区,对指导找矿起到了积极作用。作者用该法对一些著名产金矿岩浆岩的化学成分所作的研究表明,所设计的两类与金矿化隶属度有关的数学模型及其聚类中心是合理的、准确的。
Based on the systematic analysis of the evaluation factor of magmatic rock constants and the study of mineralization membership based on fuzzy set theory, the authors have identified ten kinds of polymetallic ores (Au, Cu, Mo, U, W, REE, Nb-Ta, Be and Sn). Taking the magmatic rocks in Jiangsu Province as an example, the gold mineralization membership of the related rock mass was calculated, and a 4-level gold-finding target area was divided, which played an active role in guiding the prospecting. Using this method, the authors study the chemical composition of some well-known gold-bearing igneous rocks shows that the two types of mathematical models and their clustering centers related to gold mineralization membership are reasonable and accurate.