| 朱红卫,朱卫东,赵春霞.河南龙门店银矿床地质特征及找矿标志[J].矿产勘查,2017,8(2):257-264 |
| 河南龙门店银矿床地质特征及找矿标志 |
| Geological characteristics and prospecting criteria of Longmendian silver deposit, Henan |
| 投稿时间：2016-01-28 |
| DOI： |
| 中文关键词: 熊耳山西段 银矿床 地质特征 找矿标志 河南 |
| 英文关键词: western part of Xionger mountain, silver deposit, geological characteristics, prospecting criteria, Henan |
| 基金项目: |
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| 摘要点击次数: 1609 |
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| 中文摘要: |
| 熊耳山西部是Ag-Pb-Au等多金属成矿带地球化学异常区。区内构造发育,岩浆活动频繁且强烈,北东向断裂是金、银等多金属矿床形成的重要赋矿构造,龙门店银矿床赋存于熊耳山成矿带西段,在空间上具有“三位一体”控矿格局。通过地球化学等手段圈定异常区,运用钻探、槽探及坑探对含矿蚀变破碎带进行揭露控制,认为505-I矿体及矿体内富矿分布均具有等距分布特征,断裂带产状变化较大或者有明显弯曲和构造交汇的部位是矿化主要集中的位置,矿床成矿流体和成矿物质主要来源于岩浆热液,并根据等距成矿理论推测龙门店银矿床深部寻找富集矿体具有较大的潜力。 |
| 英文摘要: |
| The western part of Xionger mountain is a geochemical anomaly area of the Ag-Pb-Au polymetallic metallogenic zone. Intensive structures and magmatic rocks outcropped in this area. The NE-strike fracture is an important ore-bearing structure which controls the formation of gold and silver polymetallic deposit. The Longmendian silver deposit occurs in the western part of Xionger mountain metallogenic belt, the deposit has a spatial distribution pattern of “Three Factors-in-One Place”. The anomalous areas were outlined by geochemical sampling survey, then the altered fracture zone was verified by field trenching, pitting and test drilling engineering works. The prospecting results showed that the rich silver orebodies have equidistant distribution characteristics in No.505-I orebody and within its internal texture. The silver mineralization occurs in the apparent changing place of fault attitude or in obvious bending position and junction part of different striking structures. The ore-forming fluids and ore-forming materials were mainly derived from magmatic hydrothermal fluid. According to the theory of equidistant mineralization distribution, there is great potential for finding new silver orebodies in the depth of Longmendian silver deposit. |
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