吉林夹皮沟金矿区二道沟金矿床成矿条件及找矿标志
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摘要
二道沟金矿床位于夹皮沟金矿区南部,夹皮沟本区金矿床西南侧。矿体产于夹皮沟群糜棱岩化斜长角闪岩中,以石英脉型矿体为特征,两侧和深部见有细网脉浸染型矿化。研究认为,二道沟金矿成矿与夹皮沟群斜长角闪岩、角闪斜长片麻岩及钾质花岗岩密切相关;北北西向矿化蚀变韧性剪切带为主要控矿构造;绿泥石化、黄铁绢英岩化为蚀变标志。矿床地球化学特征表明,Au与S、Bi、Ag、Cu、Pb、Zn、Hg、Sb、Te、Mo等成矿元素构成稳定组合,可作为找金的指示元素组合。
Erdaogou Gold Deposit is located in the south of Jiapigou Gold District,to the southwest of Jiapigou Gold Deposit. The orebody,typically as quartz-vein type orebody,occurs in the mylonitized plagioclase amphibolite of Jiapigou Group,with thin stockwork disseminated mineralization on both sides and in the deep part. The paper thinks that the mineralization of Erdaogou Gold Deposit is closely related to the plagioclase amphibolite,amphibolite plagiogneiss and potassic granite of Jiapigou Group; the NNW mineralized alteration ductile shear zone is the main ore-controlling structure; chloritization and beresitization are the indicators of alteration. Geochemical characteristics of the deposit show that Au forms stable element combination with S,Bi,Ag,Cu,Pb,Zn,Hg,Sb,Te and Mo,which can be used as prospecting indicator element combination for gold.
Erdaogou Gold Deposit is located in the south of Jiapigou Gold District,to the southwest of Jiapigou Gold Deposit. The orebody,typically as quartz-vein type orebody,occurs in the mylonitized plagioclase amphibolite of Jiapigou Group,with thin stockwork disseminated mineralization on both sides and in the deep part. The paper thinks that the mineralization of Erdaogou Gold Deposit is closely related to the plagioclase amphibolite,amphibolite plagiogneiss and potassic granite of Jiapigou Group; the NNW mineralized alteration ductile shear zone is the main ore-controlling structure; chloritization and beresitization are the indicators of alteration. Geochemical characteristics of the deposit show that Au forms stable element combination with S,Bi,Ag,Cu,Pb,Zn,Hg,Sb,Te and Mo,which can be used as prospecting indicator element combination for gold.
引文
[1]沈保丰,李俊健,毛德宝,等.吉林夹皮沟金矿地质与成矿预测[M].北京:地质出版社,1998:5.
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[4]李跃东,张继武.夹皮沟金矿带蚀变岩型金矿体(带)的分布及找矿方向[J].黄金,2016,37(11):18-22.
[5]王坤,车泽褔.二道沟矿床地质特征简介及成因探讨[J].西部探矿工程,2014,26(4):111-116.
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[7]李惠,张文华,常凤池,等.金矿盲矿预测的原生晕轴向“反(向)分带”和地化参数轴向“转折”准则[J].桂林工学院学报,1999,19(2):114-119.
[8]聂世嘉,杨言辰,韩世炯,等.辽宁排山楼金矿床黑云母花岗岩成岩时代及地质意义[J].地球科学与环境学报,2017,39(2):161-174.
[2]黄志新.吉林省夹皮沟金矿带构造-流体-成矿系统[D].北京:中国地质大学(北京),2012.
[3]荆振刚,曹希英,郑云龙,等.夹皮沟钾质花岗岩与金矿关系及找矿方向[J].吉林地质,2014,33(1):27-30.
[4]李跃东,张继武.夹皮沟金矿带蚀变岩型金矿体(带)的分布及找矿方向[J].黄金,2016,37(11):18-22.
[5]王坤,车泽褔.二道沟矿床地质特征简介及成因探讨[J].西部探矿工程,2014,26(4):111-116.
[6]李惠,张文华,刘宝林,等.中国主要类型金矿床的原生晕轴向分带序列研究及其应用准则[J].地质与勘探,1999,35(1):34-37.
[7]李惠,张文华,常凤池,等.金矿盲矿预测的原生晕轴向“反(向)分带”和地化参数轴向“转折”准则[J].桂林工学院学报,1999,19(2):114-119.
[8]聂世嘉,杨言辰,韩世炯,等.辽宁排山楼金矿床黑云母花岗岩成岩时代及地质意义[J].地球科学与环境学报,2017,39(2):161-174.