厄立特里亚安塞巴省克尔克贝特矿区Mier矿床地质特征及找矿标志
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1.天齐锂业股份有限公司, 四川 成都 610299 ; 2.蜀道投资集团有限责任公司, 四川 成都 610041

作者简介:

王晨(1989—),男,甘肃省陇南市人,硕士研究生,工程师,从事地质调查与矿产勘查研究。

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TD167

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Geological Characteristics and Prospecting Indicators of Mier Deposit in Kerkbet Mining Area, Anseba Province, Eritrea
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    摘要:

    Mier矿床是克尔克贝特矿区重要稀贵金属产区,该区域已开展了部分勘察工作,为进一步支撑矿区资源开发,通过开展地质普查及地球物理、化学分析,明确了该区域地质特征及找矿标志。研究表明:Mier矿床受主断裂F12控制,其主要矿产赋存于F12-1、F12-2、F12-3的控矿构造破碎带中,矿体总体产状85°∠75°左右,延深深度超过350m,赋矿围岩主要为石英绢云母片岩,与成矿相关蚀变主要包括褐铁矿化蚀变带、风(氧)化蚀变淋滤褐铁矿化红土层、磁铁矿化、黄铁矿化、黄铜矿化等。矿体矿化带具有明显激电特性,可以利用VTEM(航空电磁法)方法及遥感分析法可以确定赋矿范围及延深方向,并通过化学方法确定金属元素富集程度,明确了找矿靶区,为下一步探找矿工作提供了具体方向及科学指导。

    Abstract:

    Mier deposit is an important rare and precious metal production area in the Kerkbet mining area. Partial exploration work has been carried out in this area to further support the development of mining resources. Through geological surveys and geophysical and chemical analyses, the geological characteristics and prospecting indicators of the area have been clarified. Research has shown that the Mier deposit is controlled by the main fault F12, and its main mineral deposits are located in the ore controlling structural fracture zones of F12-1, F12-2, and F12-3. The overall orientation of the ore body is around 85 °∠ 75 °, with a depth of over 350m. The host rock is mainly quartz sericite schist, and the mineralization related changes mainly include limonitization alteration zones, weathering alteration leaching limonitization red soil layers, magnetite mineralization, pyrite mineralization, brass mineralization, etc. The mineralized zone of the ore body has obvious induced polarization characteristics, and the VTEM (airborne electromagnetic method) and remote sensing analysis methods can be used to determine the ore bearing range and depth direction. The degree of metal element enrichment can also be determined through chemical methods, clarifying the target area for mineral exploration and providing specific directions and scientific guidance for the next exploration work.

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王晨,池祥成,刘尚贵. 厄立特里亚安塞巴省克尔克贝特矿区 Mier 矿床地质特征及找矿标志[ J]. 中国矿山工程,2025,54 (1):77 - 81.

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  • 在线发布日期: 2025-12-24
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