| 山东沂源金星头金矿成矿地质条件及成矿潜力分析 |
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| 引用本文： | 范振华.山东沂源金星头金矿成矿地质条件及成矿潜力分析[J].山东国土资源,2020,36(8). |
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| 作者姓名： | 范振华 |
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| 作者单位： | 山东省第一地质矿产勘查院,山东省富铁矿勘查技术开发工程实验室,山东济南 250100 |
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| 摘 要： | 沂源金星头矿床为矽卡岩型金铁共生的多金属矿床,伴生银、铜和硫。金星头地区主要成矿岩体为燕山晚期沂南序列闪长质杂岩体。一直以来,该区勘查工作主要围绕北部金星头岩体浅部进行,其深部及外围找矿工作程度相对较低。该文在总结金星头地区成矿地质条件基础上,对成矿岩体、矿体、控矿构造、蚀变矿化等矿床地质特征和成矿物质来源进行了分析,结合鲁西部分金矿床的区域成矿地质背景分析类比,对该区成矿潜力和赋矿部位进行探讨:该区以金星头断裂以北为重点找矿区域,围绕金星头岩体,以成矿系统理论为指导,在岩体的西北部及东部、东北部开展深部及外围系统勘查工作,寻找有利控矿构造,综合寻找爆破角砾岩型—岩浆热液型—接触交代型—碳酸盐岩微细浸染型多种矿化类型。同时,进一步查明区内岩体间及其与金星头断裂的空间分布,指导外围及临区深部找矿工作。
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| 关 键 词： | 地质条件 成矿潜力 金星头地区 山东沂源 |
Geological Conditions of Ore-forming and Metallogenic Potential of Gold Deposit in Jinxingtou Area in Yiyuan County of Shandong Province |
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| FAN Zhenhua.Geological Conditions of Ore-forming and Metallogenic Potential of Gold Deposit in Jinxingtou Area in Yiyuan County of Shandong Province[J].Land and Resources in SHANDONG Province,2020,36(8). |
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| Authors: | FAN Zhenhua |
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| Abstract: | Jinxingtou deposit belongs to a skarn type Au-Fe polymetallic deposit, and associated with Ag, Cu and S. The main ore-forming body in Jinxingtou area is the late Yanshan Yinan series diorite complex. For a long time, the exploration work in this area is mainly in shallow part of Jinxingtou rock mass in the north, and its deep and peripheral prospecting work is relatively low. On the basis of summarizing metallogenic geological conditions in Jinxingtou area, geological characteristics and source of ore deposits, such as ore-forming rock body, ore body, ore controlling structure and alteration mineralization have been analyzed. Combining with analysis and analogy of regional metallogenic geological background of some gold deposits in western Shandong province, metallogenic potential and ore-bearing location in this area have been discussed. The north of Jinxingtou fault is key prospecting area. Based on the theory of metallogenic system, the deep and peripheral exploration work is carried out in the northwest, east and northeast areas of Jinxingtou rock mass for prospecting favorable ore controlling structures, and looking for various types of mineralization comprehensively, including explosive breccia type, magmatic hydrothermal type, contact metasomatic type and carbonate micro disseminated type. At the same time, the spatial distribution between the rocks and Jinxingtou fault in the area should be identified furthurly in order to guide the deep prospecting work in the peripheral and adjacent areas. |
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