| 吉林蛟河新安屯铜钼矿床成矿地质特征及成矿规律 |
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| 引用本文： | 李建华,陈旭,程双,张海莹,孙锐.吉林蛟河新安屯铜钼矿床成矿地质特征及成矿规律[J].世界地质,2022(1):85-91. |
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| 作者姓名： | 李建华 陈旭 程双 张海莹 孙锐 |
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| 作者单位： | 吉林省区域地质矿产调查所 |
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| 基金项目： | 吉林省地矿局地质勘查项目(jdk[2018]ky001)。 |
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| 摘 要： | 新安屯铜钼矿地处敦-密深大断裂带东北部,受该断裂带影响,矿区内构造发育,为矿床形成提供容矿空间及导矿构造.笔者通过野外地质调查,借助于岩矿鉴定和光片鉴定明确了围岩蚀变特征、岩石特征、矿石矿物的结构构造及共生组合关系,将成矿阶段划分为3个期次、4个阶段.根据实际勘探资料,结合前人研究成果,发现新安屯铜钼矿空间上位于东北叠...
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| 关 键 词： | 新安屯 铜钼矿 成矿规律 成矿预测 |
Geological characteristics and metallogenic regularity of Xin antun copper-molybdenum deposit in Jiaohe,Jilin |
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| LI Jianhua,CHEN Xu,CHENG Shuang,ZHANG Haiying,SUN Rui.Geological characteristics and metallogenic regularity of Xin antun copper-molybdenum deposit in Jiaohe,Jilin[J].World Geology,2022(1):85-91. |
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| Authors: | LI Jianhua CHEN Xu CHENG Shuang ZHANG Haiying SUN Rui |
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| Institution: | (Regional Geological and Mineral Resources Survey of Jilin Province,Changchun 130022,China) |
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| Abstract: | The Xin antun copper-molybdenum deposit is located in the northeast of the Dunhua-Mishan deep and large fault zone.Affected by the fault zone,the tectonic structures in the mining area are developed,providing ore-bearing space and ore-conducting structure for the formation of the deposit.Based on the field geological survey,rock and mineral identification,the authors confirmed the characteristics of wall rock alteration,rock characteristics,structure and symbiotic association of ore minerals,and divided the metallogenic period into three stages and four phases.According to the actual exploration data,combined with previous research results,it is found that the Xin antun copper and molybdenum deposit is located in the northeastern superimposed orogenic-rift system,Fu anpu--Tadong Mo-Fe-W-Cu-Au-Pb-Zn-Ag metallogenic belt,and the southern Fu anpu-Malugou Mo-Fe-Cu-Au-Ag-Pb polymetallic prospecting area.Geochronologically,it is related to the Early Yanshan(i.e.Early Jurassic)porphyritic granodiorite.Quartz veins are closely related to the ore body and are the main ore-bearing parts.Based on the comparative study of the metallogenic model of the“veins above and ore bodies underneath”tungsten-molybdenum deposit,and combined with the NNW-trending granite porphyry vein found in the northeast of the mining area(presumed to be the rock branch invaded to the surface),the metallogenic prediction of the deep part of the deposit was carried out.It was speculated that the deposit was consistent with the metallogenic model of the“veins above and ore bodies underneath”of porphyry type deposits,that is,the Xin antun copper-molybdenum deposit is the upper vein,and the ore body is small in scale,belonging to the quartz vein type.By contrast,the ore bodies underneath is the porphyry body,implying that medium or large scale porphyry deposits may exist. |
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| Keywords: | Xin antun copper and molybdenum deposit metallogenic regularity metallogenic prediction |
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