论文部分内容阅读
在大冶-九江沿长江分布的Fe,Cu（Au）和Au（Cu）矿床的夕卡岩矿物中,除含气-液包裹体外,还含大量熔融包裹体和流体-熔融包裹体.熔融包裹体形态多样,它们主要由不同相比例的晶质硅酸盐（CSi）、铁质（Fe）、非晶质硅酸盐（ASi）及气体（V）多相组成.其中有的含有几个结晶硅酸盐相.所研究的熔融包裹体大小一般为（10～46）μm×（6～15）μm.流体-熔融包裹体与熔融包裹体的区别是在前者中出现液体（L）相,均一温度较低.在所获得的48个温度数据中,夕卡岩石榴石和辉石中熔融包裹体有39个均一温度数据,流体-熔融包裹体有两个数据,其余属流体包裹体所有.石榴石和辉石中的熔融包裹体具有890～1115℃均一温度,流体-熔融包裹体具有745～750℃均一温度,流体包裹体的均一温度介于580～675℃之间.39个熔融包裹体的均一温度平均值为1029.9℃.现有包裹体相态特征及其均一温度表明,所研究的夕卡岩应为岩浆成因.
In the skarn minerals of the Fe, Cu (Au) and Au (Cu) deposits distributed along the Yangtze River in Daye-Jiujiang, a large amount of melt inclusions and fluid-melt inclusions are contained in addition to gas-liquid inclusions. The inclusions are diverse in shape and consist mainly of heterogeneous phases of crystalline silicate (CSi), iron (Fe), amorphous silicate (ASi) and gas (V) A crystalline silicate phase.The size of the melt inclusions studied is generally (10 ~ 46) μm × (6 ~ 15) μm.The difference between fluid-melt inclusions and melt inclusions is the presence of liquid (L) Phase and the homogenization temperature are lower.Among the 48 temperature data obtained, there are 39 uniform temperature data for the melt inclusions in skarn garnets and pyroxenes, two data for fluid-melt inclusions and the rest for fluid inclusions All of the melt inclusions in garnet and pyroxene have a homogenization temperature of 890 ~ 1115 ℃, the fluid-melt inclusions have a homogenization temperature of 745 ~ 750 ℃, the homogenization temperatures of fluid inclusions range from 580 ~ 675 ℃, 39 melt The average temperature of the inclusions is 1029.9 ℃, and the phase characteristics of the existing inclusions and their characteristics A temperature show that the study of skarn should magmatic origin.