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庐山星子群沉积变质岩中发育平行区域片理的石英脉和长英质脉体 ,这些脉体的石英晶体内富含原生的流体包裹体 ,包括低盐度的含液体CO2 包裹体、液体包裹体、纯CO2 包裹体和高盐度含子矿物包裹体。它们与中生代伟晶岩脉体中包裹体在均一温度、盐度和CO2 密度等方面的明显差异和变质脉体中含液体CO2 包裹体的等容线位置 ,表明变质脉体石英中的流体包裹体是在变质作用期间被捕获的部分变质流体 ,进一步证实了脉体是与变质作用同期形成的。庐山星子群变质流体属于低盐度的H2 O -CO2 -NaCl和H2 O -NaCl体系 ,高盐度的卤水和纯CO2 体系的包裹体很可能是流体在运移过程中发生相分离的结果。
Lushan Xingzi sub-group of metamorphic rocks in the development of parallel regions of the quartz veins and the formation of long-range quartz pulse body, these veins of quartz crystals rich in native fluid inclusions, including low-salinity fluid inclusions of liquid CO2, liquid inclusions Body, pure CO2 inclusions and high salinity sub-mineral inclusions. The significant difference between them and the Mesozoic pegmatite inclusions in the homogenization temperature, salinity and CO2 density, and isochronal location of the liquid CO2 inclusions in the metamorphic veins indicate that the fluid inclusions in the metamorphic veins quartz The body is a part of the metamorphic fluids trapped during the metamorphism, further confirming that the veins were formed contemporaneously with the metamorphism. The Lushan Xingzi group metamorphic fluids belong to low-salinity H 2 O -CO 2 -NaCl and H 2 O-NaCl systems. The inclusions of high-salinity brine and pure CO2 systems are likely to be the result of phase separation during fluid migration.