| 吉林省集安市苇沙河金矿床地质特征及成因初步分析 |
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| 引用本文： | 金珍花,崔圣哲,刘大伟,刘志伟,郑义明,薄志卿.吉林省集安市苇沙河金矿床地质特征及成因初步分析[J].吉林地质,2013(4):37-42. |
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| 作者姓名： | 金珍花 崔圣哲 刘大伟 刘志伟 郑义明 薄志卿 |
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| 作者单位： | [1]吉林省地质科学研究所,吉林长春130012 [2]河南省地质矿产勘查开发局第一地质勘查院,河南郑州450001 |
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| 摘 要： | 通过对苇沙河金矿床地质特征、成矿条件研究,认为苇沙河金矿床产于早元古代集安群荒岔沟组变质火山岩及中元古代老岭群板房沟组浅变质碎屑岩中,区内发育石英闪长岩,矿化受NE向断裂带控制。矿体形态为脉状、似层状及透镜状,矿体厚度及品位变化较大。金矿围岩蚀变发育,包括硅化、黄铁矿化、褐铁矿化、绢云母化、绿泥石化。金矿（化）带的形成与闪长岩体有密切关系。中酸性岩浆活动与断裂构造是矿床形成的关键因素。地质特征表明,板房沟金矿为叠加改造型金矿床。
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| 关 键 词： | 苇沙河金矿床 地质特征 元古代 变质碎屑岩 矿床成因 |
Preliminary analysis of geological features and genesis of Weishahe gold deposit in Ji＇an,Jilin Province |
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| JIN Zhen-hua;CUI Sheng-zhe;LIU Da-wei;LIU Zhi-wei;ZHENG Yi-ming;BO Zhi-qing.Preliminary analysis of geological features and genesis of Weishahe gold deposit in Ji＇an,Jilin Province[J].Jilin Geology,2013(4):37-42. |
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| Authors: | JIN Zhen-hua;CUI Sheng-zhe;LIU Da-wei;LIU Zhi-wei;ZHENG Yi-ming;BO Zhi-qing |
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| Institution: | JIN Zhen-hua;CUI Sheng-zhe;LIU Da-wei;LIU Zhi-wei;ZHENG Yi-ming;BO Zhi-qing;Institute of Geological Sciences of Jilin Province;The First Institute of geological survey,Bureau of Geology and Mineral Resource of Henan,Province; |
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| Abstract: | Study on geological features and ore-forming conditions of Weishahe gold deposit,it is considered that the gold deposit originates in metamorphic volcanic rocks of the of early Proterozoic Ji＇an Group Huangchagou Formation and shallow metamorphic clasolite of the Mesoproterozoic Era Laoling Group Banfanggou Formation.The quartz diorite develops in the area,the gold mineralization are controlled by the NE trend faults.The ore bodies are vein,stratoid and lenticular.Thickness and grade of the ore bodies change greatly.The alteration types include silicification,pyritization ferritization sericitization and chloritization.The formation of gold mineralization belt has close relation with diorite rock mass.Intermediate acidity magmatic activity and the fault structures are the key factors that controlled the deposit.The geological features show that Banfangou gold deposit is a superimposed remould type. |
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| Keywords: | Weishahe gold deposit geological features Proterozoic metamorphic clasolite rock genesis of deposit |
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