Abstract:
The Gold (mineralized) bodies of the Xiniwusu Gold Deposit are hosted within the Middle Permian mylonitized granodiorite massif and in quartz stockworks along the outer contact zone between the massif and strata, showing good spatial correspondence with geophysical and geochemical anomalies. Specifically, soil geochemical survey shows that the Au anomalies are large in scale and high in intensity, with well-superimposed multi-element anomaly concentration centers. The induced polarization mid-range intermediate gradient survey indicates that the gold-mineralized bodies exhibit obvious high-resistance and medium-polarization characteristics. The granodiorite formed during and after the Hercynian period exhibits distinct metasomatic remelting characteristics, providing important material and thermal sources for gold mineralization in the area. Through multi-stage tectonic superposition and hydrothermal circulation, gold was continuously activated and migrated, gradually enriched to form ore deposits, and eventually leading to the formation of the Xiniwusu Gold Deposit.