吉林板庙子金矿床流体包裹体特征及其地质意义

板庙子金矿床地处夹皮沟成矿带西部，为一受韧性剪切带控制的中型规模矿床，矿化类型为含金石英脉型。流体包裹体有CO₂三相、气液两相包裹体两种类型。测温结果显示：含CO₂三相包裹体均一温度为250～326℃、盐度(w(NaCl）)为4.51%～7.14% ;气液两相包裹体均一温度为129～229℃、w（NaCl）为5.25%～7.01%。据包裹体的测温结果估算成矿压力为34.7～109.6 MPa，矿床形成深度约6～7 km。结合该区成矿地质背景，认为该矿床属中深层次矿床，其深部仍应有一定的找矿前景。

Characteristics of the Fluid Inclusion of Banmiaozi Gold Deposit,Jilin Province and Their Geological Significance

The Banmiaozi gold deposit is a medium-sized one structurally controlled by the  ductile shear zone in the western Jiapigou auriferous metallogenic belt. The main mineralization type of the deposit is gold-bearing quartz vein. Fluid inclusions in quartz can be classified into aqueous two-phase and CO₂-bearing three-phase types. The homogenization temperatures for the CO₂-bearing three-phase inclusions range from 250 ℃ to 326 ℃, and the salinities range from 4.51% to 7.14%; the homogenization temperatures for the aqueous two-phase range from 129 ℃ to 229 ℃, and the salinities range from 5.25% to 7.01%. According to the results of inclusions temperature measurement, the metallogenic pressure is estimated mainly between 34.7-109.6 MPa and the formation depth of deposit at about 6-7 km. Considering the metallogenic setting in this area, the deposit should be prospecting for its moderate-deep erosion.