再论德兴斑岩铜矿成矿物质来源

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，谁了铜厂成矿体系斑岩 内在性地成矿物质运移、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。进上步的研究又支持了德兴斑岩铜矿的正岩浆成因。

Further Discussion on the Source of Ore-forming Materials in the Dexing Porphyry Copper Deposit, Jiangxi Province

Based on petrochemistry, fluid inclusion, strontium isotopic tracer and previous discussion. this paper further verified the possibility of ore-forming material transportation-congregation-mineralization decided by the nature of the Tongchang porphyry intrusive. It is indicated that the massive hydrothermal fluids could release from convecting magma columns emplaced at small depths. Ore-forming materials such as copper were transferred from parent magma by high salin-ty magmatic hydrothermal fluids to flow upward and along the contact with the wall rocks, and then to form ore deposits along the contact and in the shallow portion of the porphyry cupola. Further studies supported the orthomagmatic genesis for Dexing porphyry copper deposit.