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科克萨依金矿床为典型的韧性剪切带蚀变糜棱岩型金矿床,它与克孜勒它乌推覆构造系统有着十分密切的内在成因联系,其变形作用以韧性变形为主,具典型的深层次变形构造组合特点,其成矿过程可划分为3个重要的构造演化阶段,即早期的剪切片理化阶段、中期的变形分解阶段和晚期的液压致裂阶段,从而建立了该剪切带金矿床的构造演化模式。早期的剪切片理化阶段仅具微弱的金矿化;中期变形分解过程中,含金流体的渗流导致水热蚀变和金在递进缩短应变域的大规模沉淀,形成了主成矿期的金矿化;在晚期液压致裂阶段,含金流体涌入张裂隙,形成高品位、小规模的含金石英脉。
The Keshaoyi gold deposit is a typical ductile shear zone altered mylonitoid gold deposit. It has a very close intrinsic genetic relationship with the Wuziju-Wudu system, and its deformation is dominated by ductile deformation. With the typical features of deep-level deformation tectonics, the mineralization process can be divided into three important tectonic-evolution stages, that is, the early stage of shearing, the middle stage of deformation and the late stage of hydraulic fracturing, so as to establish The tectonic evolution model of the shear zone gold deposit. In the middle stage of deformation and decomposition, the seepage flow of gold-bearing fluid resulted in hydrothermal alteration and large-scale precipitation of gold in the progressive shortening of the strain domain, forming the main mineralization stage Of the gold mineralization; in the late stage of hydraulic fracturing, the influx of gold-containing fluid into the fracture, the formation of high-grade, small-scale gold-bearing quartz veins.