银山—德兴地区的非线性和复杂性及其矿产预测意义

The Phenomenon and Significance of Non-Linearity and Complexity in the Yinshan—Dexing District,Northeast Jiangxi

银山—德兴地区具有明显的非线性和复杂性特征,表现为:断裂构造的分维数为1.66,与全球断层的分维数相近;区域上的韧性剪切带具有三维似Menger海绵结构;银山矿的铜、铅锌和银矿体表面上有传统意义上的Pb-Zn-Cu-Ag分带,但实际上钢和铅锌矿体及其赋存的含矿构造的分维数有显著差异,因此至少存在两个空间上相互叠加的成矿子系统,并呈现"整体不等于部分之和"的复杂性。事实说明,银山矿的地球化学分带与传统意义上的分带性具有完全不同的含义,不能简单地作为预测深部盲矿体的直接依据。

In the Yinshan—Dexing district in northeast Jiangxi,the faults,oredeposits,orebodies and element zones demonstrate a series of non-linearity and complexity.The fractal of the faults system is 1.66,close to the fractality of the faults induced by earthquakes all over the world.The regional zoning of the geochemical elements,ore veins and ore deposits own a self-similarity.The ductile shear zone system in the northeast of Jiangxi has a typical 3-D 'quasi-Menger sponge' structure.In the Yinshan mining area,the ore veins have the conventional Cu-Pb-Zn-Ag zoning.However,their onehosting structure systems have different fractal characteristics and display the complexity of 'the totality is not the sum of parts'.There are two overlapping metallogenetic subsystems in the same space. All of these characters are of great significance to mineral resource prognosis in this district.