中文摘要：

萑香洼金矿床赋存于中元古界熊耳群安山岩中，矿体受断裂破碎带控制。萑香洼金矿成矿流体液相成分以K^＋、Na^＋、Cl^-离子为主，其次是SO4^2-、Ca^2＋、Mg^2＋和F^-离子，少量Li^＋和HCO3^-离子。流体气相成分以H2O为主，其次是CO2，少量CO、N2、CH4。流体的盐度比较低，其范围为0．90％～7．59％wtNaCl，流体的pH值在6．60～7．10之间，成矿的温度和压力范围分别为180℃。265℃，压力为150×10^6～250×10^6Pa，表明成矿流体具有中一低温、低压和低盐度的特点，流体属于NaCl=H2O—CO2体系。流体的溶液主要来自岩浆水。含矿流体在迁移过程中，与围岩发生了强烈的流体一岩石反应，伴随成矿流体及其周围的物理化学争件发生突变，成矿物质在有利成矿部位沉淀，富集成矿。

英文摘要：

The Huanxiangwa gold deposit occurs in a ductile shear zone in andesite of the middle Proterozoic Xiong＇ er Group, and the orebedy is controlled by fracture zone. The ionic components in the fluid inclusions are mainly K^＋ , Na^＋ and Cl^-, with minor SO4^2- , Ca^2＋ , Mg^2＋ and F^-, and little Li^＋ and HCO3^- The gas components are mainly composed of H2O,with minor CO2, and little CO, N2 and CH4. The ore-forming fluid exhibits pH value ranging from 6.60 to 7.10, the salinity of which ranges from 0.90% to 7.59% （equal NaCI）. Fluid inclusion data suggest that temperature and pressure during fluid-rock interactions were 180℃～265℃ and 150 × 10^5～250 × 10^5 Pa in gold deposition stage. The fluid belongs to NaCl- H2O - CO2 system, mainly deriving from magnmtic water. During fluid-rock interaction, the ore forming components are not equally mobile. MetaUogenic material lay down, concentrate and form deposit, with mutational change of oreforming fluid and physical-chemical condition around it.