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中文摘要：
金厂金矿18号矿体围岩蚀变发育顺序从早到晚为：钾化、硅化、绿泥石化、绢云母化、碳酸盐化、高岭土化,从内往外依次发育青磐岩化带、绢英岩化带和钾化带。矿化出现在泥化和绢英岩化叠加处,以及泥化和青磐岩化叠加处。通过短波红外光谱测试技术,识别出本矿区有26种蚀变矿物,其中白云母含量与金矿体呈正相关,说明绢云母化与金矿化关系密切;青磐岩化带蚀变矿物组合为绿泥石＋绿帘石＋伊利石±埃洛石±蒙脱石±石英;钾化带蚀变矿物组合为钾长石＋高岭石＋埃洛石±蒙脱石±石英;绢英岩化带蚀变矿物组合为绢云母＋埃洛石±蒙脱石±高岭石±石英。
英文摘要：
The wall-rock alteration sequence of the 18th orebody in the Jinchang gold deposit is feldspathization,silicification,chloritization,sericitization,calcitization and kaolinite,including propylitic,phyllic and potassic alteration zones from central to outword parts of the complex.The gold mineralization occurs mainly in the overlapped parts of argillization and phyllic alteration zones and of argillization and propylitic alteration zones.26 species of hydrothermal alteration minerals were identified by the short-wave infrared spectroscope technique.The positive correlation of muscovite and Au contents in these minerals suggested that the gold mineralization is closely related with the sericitization.The minerals associated with the propylitic alteration zone are chlorite ＋ epidote ＋ illite ± halloysite ± montmorillonite ± quartz,the minerals in the potassic alteration zone are K-feldspar ＋ kaolinite ＋ halloysite ± montmorillonite ± quartz and the minerals in the phyllic alteration zone are muscovite ＋ halloysite ± montmorillonite ± kaolinite ± quartz.
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