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针对湘西五强溪金矿化集中区的金矿床成因问题,通过对其赋矿紫红色砂质板岩、发生褪色蚀变的砂质板岩、钠长岩脉、含金钠长石英脉和含金多金属硫化物石英脉的稀土-微量元素地球化学研究发现,稀土配分模式均为右倾重稀土富集型,微量元素反映壳源特征,但具体的分布模式和范围表明,钠长岩脉所代表的岩浆活动与区内金成矿关系密切,而紫红色砂质板岩的褪色蚀变则表明了成矿流体的还原性特征,结合区域地质和矿床地质研究成果,本区金矿床为与印支-燕山期构造岩浆活动产生的还原性成矿流体有关的金矿床。
Aiming at the origin of the gold deposits in the Wuqiangxi gold mineralization area in western Hunan Province, the author analyzed the origin of the gold deposits in the Wuqiangxi gold mineralization area, REE-trace element geochemistry of the gold-bearing polymetallic sulfide quartz veins shows that REE patterns are both right-heavy REE-rich and trace elements reflect the crust source characteristics. However, the specific distribution patterns and ranges indicate that the barynophyllite The magmatic activity represented is closely related to the gold mineralization in the area, while the fading alteration of the purplish sandy slate indicates the reducing characteristics of the ore-forming fluids. Combined with regional geological and mineral deposit geological research results, The Indosinian - Yanshanian tectonic magmatism produces reductive ore-forming fluid-related gold deposits.