矽卡岩型矿床与斑岩成矿体系存在密切联系，但在成矿流体来源和演化等方面也存在较大差异。由于研究对象的缺乏，目前少有研究关注同一斑岩-矽卡岩复合体系中两种矿化之间成矿流体演化和矿质沉淀机制的差异。鄂东南矿集区铜山口矿床是一个与斑岩体相关的复合型矿床，发育有斑岩型和矽卡岩型两种矿化，且两种矿化各阶段的蚀变矿物中均发育较好的流体包裹体，是研究两种矿床联系和差异的理想对象。近年来逐渐成熟的单个流体包裹体LA-ICP-MS分析技术是成矿流体研究最直接的方法。本申请拟在传统流体包裹体显微测温的基础上，配合矿物生长世代的显微图像分析，进行蚀变矿物和单个流体包裹体原位成分分析，从而获得两种矿化各阶段成矿流体的物理化学特征，进而系统地追溯流体来源和演化过程，揭示矿质沉淀的控制因素。本研究将建立铜山口矿床的矿化和流体演化模型，为深入探讨同一体系中斑岩和矽卡岩型矿床成矿过程提供参考。

Skarn deposits are closely related to porphyry mineralization systems, but there are also several differences in their sources and evolution processes of ore fluids. However, due to the lack of research objects, there are few studies focus on the differences of ore-forming fluid between these two types of mineralization in the same porphyry-skarn combined deposit in detail. The Tongshankou deposit is a complex deposit related to porphyritic pluton, and develops both porphyry- and skarn-type mineralization. Fluid inclusions in the alteration minerals of the two mineralization domains are abundant, which makes the deposit an ideal example to study the connections and the differences between the types of mineralization. The laser ablation-inductively coupled plasma-mass spectrometry (LA–ICP–MS) studies of individual fluid inclusions have become a direct method to study ore fluids. Based on the paragenesis and generations of alteration minerals, together with fluid inclusion microthermometry and LA-ICP-MS microanalysis, we will characterize the physical and chemical characteristics of the ore fluids in different stages, and then trace the fluid source and evolution process in the system, also deduce the controlling factors of metal precipitation. We aim to establish the mineralization and fluid evolution model of Tongshankou deposit, and provide an example for further understand the mineralization process of porphyry and skarn type deposits.