关键词: 周家坪金矿, 石英脉型, 成矿地质特征, 找矿方向

Abstract: Zhoujiaping Gold Mine is a small gold mine discovered in the southern part of Hubei Prov‐ ince in recent years. Based on the general survey work，the geological characteristics of the mineralization in the mining area were summarized and the genesis of the deposit was discussed，and the direction of the next step of mineral exploration was pointed out. The results show that the deposit is located on the northern mar‐ gin of the Dahu Mountain rock mass. The exposed strata in the mining area are the Cambrian Huayan Tem‐ ple Formation - Silurian Xintan Formation，while the Ordovician Baota Formation and Huangnigang Forma‐ tion are missing. There are three groups of faults in the mining area，namely the near-east-west (F1)，north‐ east-east (F2，F5，F6)，and northeast-northwest (F3，F4) faults. The near-east-west longitudinal fault F1 is a regional ore-storing structure，while the northeast-east fault F6 is a regional ore-guiding structure. The F1 and F6 faults are closely related to mineralization. The ore body is vein-shaped and occurs in the strata of the Ningguo Formation，Liujuqiao Formation of the Ordovician and the Longmaxi Formation of the Ordovi‐cian - Zhiliu System. It is significantly controlled by faults. The ore-bearing lithologies are silicified frac‐ tured rocks，quartz-bearing shale，quartz-bearing siltstone and gallead-bearing quartz veins，accompanied by silicification，pyritization，decarbonization and lead-zinc mineralization. The ore mineral is natural gold. Preliminary analysis suggests that the deposit belongs to the quartz vein type gold mine. The Dahu Mountain rock mass in the southern part of the mining area and the older strata in the region may have provided heat and materials for the mineralization in this area. The deep part of the discovered ore body and the F6 fault passing through the HT3 anomaly in Xiacaiyuan are favorable sections for mineralization. It is recommended to carry out the next exploration work.

Key words: Zhoujiaping Gold Mine, quartz vein type, geological characteristics of mineralization, prospecting direction