| 山东沂南县贺家沟地区金铜多金属矿成矿规律与成矿模式 |
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| 引用本文： | 武斌,张海瑞,邹双英,李明波,刘继勇.山东沂南县贺家沟地区金铜多金属矿成矿规律与成矿模式[J].矿产与地质,2021(1):39-49. |
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| 作者姓名： | 武斌 张海瑞 邹双英 李明波 刘继勇 |
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| 作者单位： | 山东省第四地质矿产勘查院;山东省地矿局海岸带地质环境保护重点实验室;山东省煤田地质局第一勘探队 |
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| 基金项目： | 山东省自然资源厅地质勘查基金项目"山东省1∶5万方城幅、半程幅区域矿产地质调查"(鲁勘字〔2018〕36号)资助。 |
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| 摘 要： | 贺家沟地区位于沂南铜井金、铜成矿区以南,沂水金、铅锌、铁、重晶石成矿区以西,成矿地质条件较好。但在该地区已探明的铜、金矿储量远低于与其成矿条件相类似的北部沂南铜井、金场地区,因此对该地区的成矿条件分析和成矿模型研究成为区域上找矿的主要突破口。综合贺家沟地区的矿产勘查成果及已有物化探资料,对该地区内的矿产分布特征进行了系统的分析研究。结果表明:区内主要为构造控矿,控矿构造主要为沂沭断裂带的NE向、NW向次级断裂,这两组断裂的交汇部位控制了区内矽卡岩型金铜矿体的就位;区内近SN向构造为区内蚀变岩型金银矿体提供了容矿空间。研究认为区内的金铜多金属的成矿物质主要为燕山晚期深源岩浆上侵带来的含矿热液,为该地区的金银、金铜多金属矿的进一步找矿工作提供了思路。
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| 关 键 词： | 金铜多金属矿 成矿规律 成矿模式 贺家沟地区 沂南 |
Metallogenic regularity and model of gold-copper polymetallic deposit in Hejiagou area,Yinan County of Shangdong |
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| WU Bin,ZHANG Hairui,ZOU Shuangying,LI Mingbo,LIU Jiyong.Metallogenic regularity and model of gold-copper polymetallic deposit in Hejiagou area,Yinan County of Shangdong[J].Mineral Resources and Geology,2021(1):39-49. |
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| Authors: | WU Bin ZHANG Hairui ZOU Shuangying LI Mingbo LIU Jiyong |
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| Institution: | (The 4th Shandong Provincial Institute of Geological and Mineral Survey,Weifang 261021,Shandong,China;Key Laboratory of Coastal Zone Geological Environment Protection,Shandong Geology and Mineral Exploration and Development Bureau,Weifang 261021,Shandong,China;The 1st Exploration Team of Shandong Coalfield Geology Bureau,Tengzhou 277599,Shandong,China) |
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| Abstract: | Hejiagou area is located in the south of the Yinan Tongjing Au-Cu metallogenic area,and the west of Yishui Au-Pb-Zn-Fe-barite metallogenic area.The metallogenic condition is relatively good.However,the proven copper and gold reserves in this area are much lower than Tongjing and Tintian areas in North Yinan with the similar metallogenic condition.Therefore,the analysis of the metallogenic condition and the study of the metallogenic model in this area have become the main breakthrough in the regional exploration work.On the basis of the mineral exploration results in Hejiagou area and the geophysical and geochemical prospecting data,the systematic analysis and study of the mineral distribution characteristics in the area is carried out.The study result shows that the orebodies are mainly controlled by the structures in the area,and the ore-controlling structures are mainly NE and NW secondary faults in the Yishu fault zone.The intersection of these two groups of faults has controlled the skarn-type gold-copper ore bodies in the area.In addition,the nearly-SN structure provides ore-containing space for the altered rock type Au-Ag ore bodies in the area.The study considers that the gold-copper polymetallic ore-forming material in the area is mainly from the ore-bearing hydrothermal fluid brought by the deep magma intrusion in the late Yanshan period.It provides a new idea for the further prospecting of gold-silver and gold-copper polymetallic deposit in this area. |
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| Keywords: | gold-copper polymetallic deposit metallogenic regularity metallogenic model Hejiagou area Yinan County of Shandong |
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