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本文从德兴斑岩体岩石化学、流体包裹体、Sr同位素的研究出发,论证了铜厂成矿体系斑岩内在性质对成矿物质运移、聚集的控制作用。结果表明,浅侵位岩浆能产生大量的热液流体,并由中高温高盐度岩浆流体携带铜等成矿物质从深部向上部及边部迁移、聚集,在斑岩体顶部及接触带中、上部沉淀成矿。进一步的研究又支持了德兴斑岩铜矿的正岩浆成因。
Based on the study of petrochemistry, fluid inclusions and Sr isotopes in Dexing porphyry, the author proves that the intrinsic property of porphyry in the copper deposit system controls the migration and accumulation of ore-forming materials. The results show that the shallow emplacement magma can produce a large amount of hydrothermal fluids and migrate and accumulate from the deep to the upper part and the edges by copper-bearing ore-forming materials carried by the mid-high temperature and high salinity magmatic fluids. At the top of the porphyry and in the contact zone , The upper sedimentary mineralization. Further research supports the positive magmatic origin of the Dexing porphyry copper deposit.