| 摩洛哥伊米泰尔(Imiter)浅成低温热液型银矿床地质特征与成因 |
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| 引用本文： | 向鹏,王建雄,吴发富.摩洛哥伊米泰尔(Imiter)浅成低温热液型银矿床地质特征与成因[J].华南地质与矿产,2019,35(1):117-124. |
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| 作者姓名： | 向鹏 王建雄 吴发富 |
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| 作者单位： | 中国地质调查局武汉地质调查中心(中南地质科技创新中心),湖北武汉,430205;中国地质调查局武汉地质调查中心(中南地质科技创新中心),湖北武汉,430205;中国地质调查局武汉地质调查中心(中南地质科技创新中心),湖北武汉,430205 |
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| 基金项目： | 中国地质调查局项目"赤道以北非洲矿产资源潜力评价";"北部非洲大型铜金资源基地评价" |
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| 摘 要： | 伊米泰尔(Imiter)银矿床位于摩洛哥小阿特拉斯山地区,是世界级超大型浅成低温热液银矿床。矿区内矿化主要受伊米泰尔断裂带控制,矿化期可以分为以下两期:(1)贱金属矿化期(BME),与Taouzzakt花岗闪长岩(572±5Ma)有关,(2)浅成低温热液矿化期(ESE),与Takhatert流纹岩(550±3Ma)有关。通过He、S、Os同位素研究,伊米泰尔矿床的成矿物质和成矿流体都具有幔源的特征,其成矿模式表现出地幔来源的浅成低温热液成矿模式。
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| 关 键 词： | 伊米泰尔(Imiter)银矿床 矿床成因 浅成低温热液型银矿 摩洛哥 |
Geological Characteristics and Genesis of the Imiter Epithermal Silver Deposit,Morocco |
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| XIANG Peng,WANG Jian-Xiong,WU Fa-Fu.Geological Characteristics and Genesis of the Imiter Epithermal Silver Deposit,Morocco[J].Geology and Mineral Resources of South China,2019,35(1):117-124. |
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| Authors: | XIANG Peng WANG Jian-Xiong WU Fa-Fu |
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| Institution: | (Wuhan Center of China Geological Survey (Central South China Innovation Center for Geosciences),Wuhan 430205, Hubei, China) |
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| Abstract: | The Imiter silver deposit is a world-class epithermal deposit in the Anti-Atlas Mountains of Morocco. In the Imiter area, silver deposition is mainly controlled by the Imiter fault zone, and the mineralization stage can be subdivided into two phases:(1) the base metal mineralization event (BME), which is associated with Taouzzakt granodiorite (572±5 Ma);(2) the epithermal silver event (ESE), which is associated with Takhatert rhyolite (550±3 Ma). Through the He, S, Os isotopic study, the ore-forming elements and ore-forming fluid of Imiter deposit has the characteristics of the mantle source. Metallogenic model shows the epithermal ore-forming model by the mantle sources. |
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| Keywords: | Imiter silver deposit genesis epithermal silver deposit Morocco |
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