斑岩系统内矿床通常是单一或者多种成矿元素组合出现的，如铜-金矿，铜-钼矿或者单独的铜矿床以及金矿床。何种因素造成岩浆的成矿差异性是斑岩矿床研究急需解决的科学问题。越来越多的研究显示，地球深部普遍存在着富角闪石储库，该储库会选择性过滤金属元素和挥发分组分，从而造成成矿斑岩内金属元素和挥发分浓度的不同。那么，上述过程是否导致了浅部金属矿床类型的不同？铜陵斑岩铜-金系统内分布有单独的铜矿床和单独的金矿床。前期的研究显示铜陵的成矿斑岩是基性岩浆经历角闪石堆积过程形成。所以，铜陵为解决上述问题提供了很好的场所。本次以铜陵地区铜矿床和金矿床为研究对象，通过对岩浆演化不同阶段熔体包裹体的研究，探索两类成矿岩浆在演化过程中挥发分Cl/S比值的变化，探讨挥发分与铜、金差异性成矿的可能联系。

For the porphyry system ore deposits are usually polymetallic or single ones, porphyry Cu-Mo deposit, porphyry Cu-Au deposit and Cu/Au-only deposit, for example.what make the porphyry host form different deposits in a same magma system is still unclear. Increasing evidences show that there are hidden amphibole-rich reserviors in the mid-lower crust since the earth's history, and such a process will alternatively filter the metals and volatiles from melt, does this process further master the deposit formation either? Tongling porphyry Cu-Au orecluster, where the magmatism is controlled by amphibole accumulation, is a paradise to solve this problem. In this study, the goal is exploring the Cl/S ratios variation from primary magmatic stage, residue melt stage and magmatic-hydrothermal stage at Tongling porphyry Cu-only/Cu-Au and Au-only deposits, respectively, through melt inclusion study, and further solving the question: whether the Cl/S ratios variation during amphibole crystallization/accumulation is a main mechanism controlling the porphyry Cu-only or Au-only deposit formation.