四道沟金矿石英显微构造和红外光谱特征研究

Study on the Microstructures and Infrared Spectrum of Quartz in Sidaogou Gold Deposit

四道沟金矿发育着不同期次石英脉，这些石英在不同的构造环境下具有不同的力学性质，产生不同的变形特征．在含金石英产生变形的过程中，金组分分异，发生迁移，并富集成矿．说明石英的变形与金的富集有一定关系．而石英红外光谱特征正表明当石英中包体水的相对光密度＞1时，二氧化碳包体的光密度值越高，金矿化越有利．

There are quartz veins of different stages in Sidaogou gold deposit which possess the different mechanical natures under different structure environments. During the plastic deformation of gold bearing quartz, gold is differentiated, transported and enriched, which means that there is some relationship between the deformation of quartz and the enrichment of gold. The infrared spectrum of quartz shows that when the relative optical density of the inclusion water in quartz is greater than 1, the higher the optical density of inclusion CO2, the more favorable for gold mineralization