| 安徽障公山地区大丘田金矿地质特征及成矿作用分析 |
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| 作者姓名： | 杜玉雕 郑光文 魏国辉 |
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| 作者单位： | 安徽省地质调查院,合肥 230001 |
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| 基金项目： | 安徽省地质勘查基金项目“安徽省休宁县大丘田金多金属矿普查(编号: 2016-1-14)”资助 |
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| 摘 要： | 大丘田金矿位于江南造山带北缘障公山地区,在收集、整理大量前人研究资料和勘查项目成果的基础上,通过野外地质矿产调查和钻探等地质工作方法,对矿床控矿因素和成矿机制进行了综合研究。结果表明: 区内金矿主要赋存于木坑岩组碎裂石英脉中; 金矿化受构造带构造控制,构造为成矿提供了热液活动条件和成矿空间; 成矿流体主要为岩浆水与大气降水的混合物,成矿与构造作用密切相关,金矿化有岩浆活动参与,矿床类型为热液充填交代型金矿。
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| 关 键 词： | 大丘田金矿 控矿因素 构造作用 成矿 |
| 收稿时间： | 2020-04-30 |
Geological characteristics and mineralization analysis of Daqiutian gold deposit in Zhanggongshan area of Anhui Province |
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| Authors: | DU Yudiao ZHENG Guangwen WEI Guohui |
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| Institution: | Geological Survey of Anhui Province, Hefei 230001, China |
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| Abstract: | 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. |
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| Keywords: | Daqiutian gold deposit ore-controlling factors tectonism mineralization |
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