| 潘灿军,鲍振襄,包觉敏.湘西符竹溪金矿地质特征及成矿作用[J].地质找矿论丛,2015,30(1):53-59 |
| 湘西符竹溪金矿地质特征及成矿作用 |
| Geological characteristics and metallogenesis of Fuahuxi gold deposit in the west Hunan province |
| 投稿时间：2013-10-14 |
| DOI：10.6053/j.issn.1001-1412.2015.01.007 |
| 中文关键词: 符竹溪金矿特征 柱状富集 垂直分带 成矿作用 深边部找矿 湘西地区 |
| 英文关键词:Characteristics of Fuzhuxi gold deposit column enrichment vertical zoning metallogenesis marginal prospecting the west Hunan province |
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| 摘要点击次数: 1728 |
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| 中文摘要: |
| 符竹溪金矿赋存于新元古界板溪群马底驿组紫红色板岩内,成矿受区域性EW向符竹溪断裂及其派生的NNW-NW向断裂控制,矿床属于受断裂构造控制的中-低温热液脉状充填型矿床。矿床具有显著的层控特点,成矿物质主要来自地壳深部;矿脉具有沿倾向延伸较大、侧伏成矿及柱状富集的特点;主要脉带中的矿体在深部逐渐靠近,有合并成为厚大矿体的趋向;中酸性脉岩与锑金成矿在时空和成因上的关系密切,可作为锑金的找矿标志;锑金矿化具有明显的垂直分带性;成矿受隐伏中酸性岩体的热(动)力的控制,深部可能存在与上部不同的矿化类型或不同的矿种。研究认为,符竹溪金矿向深部仍有较大的成矿空间,边部V1,V2等脉带向SE向延伸部位和花岗斑岩脉带找矿前景良好,推测存在斑岩型金锑矿化。 |
| 英文摘要: |
| Fuzhuxi gold deposit occurs in purple red slate of Madiyi Formation of Neo-Proterozoic Banxi Group and is controlled by the regional EW Fuzhuxi fault and the sub-faults derived from it. It is a fault-controlled meso-epithermal fluid-filling vein type gold deposit with stratabound feature. The ore materials come from the deep source. The ore veins extend more along dip and characterized by pitching and column enrichment. The ore veins in the major ore zone get close to depth and tend to merge into a huge thick ore body. Metallogenically Sb, Au show close relation to intermediate-acidic magmatic rock body in time and space thus the latter could be the prospecting mark for ore. Sb-Au mineralization shows clear vertical zoning and is controlled by thermal dynamics of the intermediate-acidic magmatic rock body. It is possible to find different type of mineralization and ore to depth. Study on the deposit shows larger metallogenic space to depth and potentiality at SE extension of vein group V1, V2 and the granitic porphyry dyke zone and it is inferred that could occur porphyry Au-Sb mineralization. |
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