摘要
江西德兴铜矿是一个细脉浸染型斑岩铜矿田。应用分形弥散理论研究的结果发现该矿田表现出浸染矿化、热液蚀变和裂隙系统三方面的自相似性,其地质多孔介质具有多重尺度的分形非均质性,其中所发生的成矿作用具有一种差异平流所导致的流体动力分形弥散机制,而其实质则是一种平流-分形随机游动。这可能是斑岩型铜、钼、铅-锌矿床及花岗岩型钨、锡、铍和稀土等矿床中相同的成矿作用动力学机制。
The Dexing copper mine in Jiangxi Province is a porphyry copper ore field of veinlet-dissemi-nated type. Researches with the fractal dispersion theory reveal that this ore field manifests self-similarity in disseminated mineralization, hydrothermal alteration and fracture system. Its geological porous media show fractal heterogeneity of multiple scales. The ore-forming processes possess a mechanism of hydrodynamic fractal dispersion caused by differential advection, which, in essence, is a kind of advection-fractal random walk. This is probably the same dynamic mechanism of ore-forming processes as that for porphyry-type copper, molybdenum, lead and zinc ore deposits as well as for granite-type tungsten. tin, beryllium and rare earth metal deposits.
出处
《地质论评》
CAS
CSCD
北大核心
1995年第3期211-220,共10页
Geological Review
基金
地质矿产部"八五"基础地质项目研究基金 (编号8502216)
国家自然科学基金 (编号49173169)
关键词
成矿作用
动力学
流体动力
铜矿床
弥散机制
ore-forming processes, self-similarity, hydrodynamic fractal dispersion mecha-nism, fractal random walk
