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双旗山金矿床地处福建中部,矿区位于闽东火山断坳带西部,周宁-华安段隆带中段。区域上政和-大浦、福安-南靖深断裂带通过矿区东西南侧,与北东东向古田-上杭、长乐-永定大断裂带,北西向建宁-南日岛断裂带错综交汇于矿区周边地带,组成以“构造窗”为特征的金矿成矿空间。其中晚元古代大岭组变质岩、印支-燕山期岩浆活动、有利的控矿构造是金矿成矿的重要因素。矿区矿体赋存状态、矿石矿物组成和结构构造等特征表明,双旗山矿床属于浅成中酸性岩浆交代型(斑岩型)金矿。
The Shuangqishan gold deposit is located in the central part of Fujian. The mining area is located in the western part of the volcanic off-bend zone of Mindong and the middle section of the Zhouning-Hua’an Dylon belt. The regional upper strata and the Daopu-Fu’an-Nanjing deep fault zone pass through the east and west sides of the mining area, intersecting with the east-west Guandian-Shanghang, Changle-Yongding and northwest Jianning- Surrounding areas, the composition of “structural window ” is characterized by gold mineralization space. Among them, the Late Proterozoic Daling Formation metamorphic rocks, the Indosinian-Yanshanian magmatic activities and the favorable ore-controlling structures are important factors for gold mineralization. The characteristics of ore body orebodies, mineral composition and structural structure of ore show that the Shuangqi Mountain deposit is a metasomatism (porphyry type) gold deposit of shallow to medium acidity.