磐石市粗榆金矿床地质特征及找矿潜力分析
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摘要
吉林省中部为我国少有的金矿化集中区之一,在经历了一系列的勘查工作后相继发现了许多金矿床,如粗榆金矿、夹皮沟金矿、二道甸子金矿、海沟金矿等等。笔者长期勘查磐石市粗榆金矿床,通过槽探、钻探、坑探以及多化学元素综合分析等手段,结合前人的研究基础,认为粗榆金矿床属于岩浆热液裂隙填充石英脉型。华力西晚期-印支期晚期的构造运动产生的众多断裂和褶皱为矿床提供有利的成矿背景,燕山早期的岩浆热液为金矿床的形成提供物质来源。矿体多产出于闪长岩及石英闪长岩中,主要围岩为黑云母花岗岩。发现了同为北西向的X1、X2、X3、X4四条主矿体及北东向的三条盲矿体。笔者认为粗榆金矿床深部及外围找矿潜力巨大,继续投入有效工程及综合研究,有望成为大型金矿床。
The central Jilin province is one of the few concentrated areas for gold mineralization in China, after a series of exploration work, many gold deposits have been found, such as Cuyu, Jiapigou, Erdaodianzi and Haigou deposits. The long-term exploration in Cuyu gold deposit, by trenching and drilling, pitting and chemical elements comprehensive analysis methods, combined with previous research, think of Cuyu gold deposit belongs to magmatic hydrothermal fissure filling quartz vein type deposit. Late Hercynian – Late Indosinian tectonic movement have many faults and folds provide favorable metallogenic background for ore deposit, and the Early Yanshanian magmatic hydrothermal provides a oreforming material for the formation of gold deposits. The ore bodies are mostly produced in diorite and quartz diorite, and the main wall-rock is biotit granite. Four main ore bodies X1, X2, X3, X4 and three blind ore bodies in the NE direction. The author thinks that the deep and peripheral prospecting potential of the gold deposit is huge, and it will continue to put into effective engineering and comprehensive research, and it is expected to become a large gold deposit.
The central Jilin province is one of the few concentrated areas for gold mineralization in China, after a series of exploration work, many gold deposits have been found, such as Cuyu, Jiapigou, Erdaodianzi and Haigou deposits. The long-term exploration in Cuyu gold deposit, by trenching and drilling, pitting and chemical elements comprehensive analysis methods, combined with previous research, think of Cuyu gold deposit belongs to magmatic hydrothermal fissure filling quartz vein type deposit. Late Hercynian – Late Indosinian tectonic movement have many faults and folds provide favorable metallogenic background for ore deposit, and the Early Yanshanian magmatic hydrothermal provides a oreforming material for the formation of gold deposits. The ore bodies are mostly produced in diorite and quartz diorite, and the main wall-rock is biotit granite. Four main ore bodies X1, X2, X3, X4 and three blind ore bodies in the NE direction. The author thinks that the deep and peripheral prospecting potential of the gold deposit is huge, and it will continue to put into effective engineering and comprehensive research, and it is expected to become a large gold deposit.
引文
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[2]吉林省有色金属地质勘查局六○七队.吉林省磐石市粗榆金矿生产勘探及深部(-343米标高以下)金矿详查报告[R].2015.
[3]吉林省第二地质调查所.吉林省磐石市粗榆金矿外围金矿详查报告[R].2014.
[4]吉林省有色金属地质勘查局六○七队.吉林省磐石市粗榆金矿X 3、X4号矿体40m标高以下详查报告[R].2010.
[5]洪雪,彭晓蕾,刘立,等.吉中磐石地区下石炭统鹿圈屯组海相暗色泥岩特征[J].吉林大学学报(地球科学版).2009,39(2):225-231.
[6]苏斌,李碧乐,汪志刚,等.吉林磐石粗榆金矿床流体包裹体特征及矿床成因[J].黄金地质.2014,35(4):8-13.