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新疆发现优质绿柱石(祖母绿)受到了国内外学者的高度关注。本文主要对新疆绿柱石(祖母绿)矿的包裹体矿物学及成矿地质条件进行研究,发现流体包裹体主要有2种类型:A型,两相盐水溶液包裹体;B型,三相盐水包裹体(含子矿物)。流体包裹体均一温度变化范围为:270～500℃,主要集中在300～480℃,最高峰值为500℃,属中高温度流体。流体包裹体盐度变化范围为:18%～60%,主要集中在20%～50%,最高峰值为60%,属中高盐度流体。成矿流体密度为0.95 g/cm3。成矿流体的压力约为65 MPa,确定新疆绿柱石矿床类型为中高温气成-热液型。
Xinjiang found that high-quality beryl (emerald) has been highly concerned by scholars at home and abroad. In this paper, the mineralogy and ore-forming geological conditions of the beryl ore in emerald ore are studied. It is found that there are two types of fluid inclusions: A type, two phase brine inclusions; B type, three phase brine Inclusion (containing sub-minerals). The homogenization temperature range of fluid inclusions is 270-500 ℃, mainly concentrated in the range of 300-480 ℃ and the highest peak value is 500 ℃, which belongs to medium and high temperature fluid. The range of salinities of fluid inclusions ranges from 18% to 60%, mainly from 20% to 50% with the highest peak value of 60%, belonging to medium-high salinity fluid. The density of ore-forming fluids is 0.95 g / cm3. The pressure of the ore-forming fluid is about 65 MPa, and the type of the beryl deposit in Xinjiang is determined to be a mid-high temperature gas-hydrothermal type.