Geological characteristics and mineralization analysis of Daqiutian gold deposit in Zhanggongshan area of Anhui Province

Daqiutian gold deposit in Zhanggongshan area is located in the northern margin of Jiangnan orogen. Based on the collection of previous research data and achievements of exploration projects, the authors in this paper investigated the ore-controlling factors and metallogenic mechanism through field geological investigation and drilling exploration. The results show that the gold deposit mainly occurs in the fracture quartzite of Mukeng Formation, and that the gold mineralization is obviously controlled by the tectonic belt, which provides hydrothermal conditions and occurrence space for mineralization. The ore-forming fluid is mainly derived from the mixed meteoric water and magmatic water. The mineralization is closely related to tectonism, and the magmatism is involved in the mineralization activity. The deposit type is a hydrothermal filling metasomatic deposit.