东准噶尔卡拉麦里金矿带构造控矿特征及有利度分析
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摘要
东准噶尔卡拉麦里金矿带是新疆重要的成矿带之一,已经发现的金矿床(点)有100多处。区内断裂构造极为发育,主要的断裂构造有卡拉麦里深大断裂、清水—苏吉泉断裂和库普大断裂,由大断裂派生的次级断裂广泛发育,与金的成矿关系极为密切。在已有研究的基础上,借助遥感解译技术,在数理统计的基础上,总结了卡拉麦里金矿带构造控矿特征,并初步进行了有利度分析。结果表明:北西—北西西向的断裂为该成矿带内极为有利的控矿构造,其控制了成矿带的展布,与其共生的次级断裂和派生断裂为容矿构造,控制着矿床(点)的位置。北东—北东东和北东对金矿的控矿作用不明显。金矿床(点)多分布在5～15个/100 km~2的密度区内。线性构造交汇点密度高峰值为25个/100 km~2,随着密度值的增高,金矿床(点)逐趋减少。
The Kalamaili gold ore belt in East Junggar is one of the important metallogenic belts in Xinjiang,and more than 100 gold deposits( points) have been discovered. The fault structure in the area is extremely developed. The main fault structures include the Kalamaili deep fault,the Qingshui-Sujiquan fault and the Kupu large fault. The secondary faults derived from the large fault are widely developed and closely related to gold mineralization. Based on previous studies and mathematical statistics,using the remote sensing interpretation technology,the structural ore-control characteristics of the Kalamaili gold ore belt are summarizes and a preliminary advantage analysis is conducted. The results show that the NW-NWW fault is an extremely favorable ore-controlling structure in the metallogenic belt,which controls the distribution of the metallogenic belt,and the secondary faults and derived faults associated with it are the ore-bearing structures,controlling the deposit( Point) location. The ore-controlling effect of NE-NEE and NE on gold mines is not obvious. Gold deposits( points) are mostly distributed in the density zone of 5 ～ 15/100 km~2. The peak density of the linear structure intersection point is 25/100 km~2. As the density value increases,the gold deposits( points) decrease.
The Kalamaili gold ore belt in East Junggar is one of the important metallogenic belts in Xinjiang,and more than 100 gold deposits( points) have been discovered. The fault structure in the area is extremely developed. The main fault structures include the Kalamaili deep fault,the Qingshui-Sujiquan fault and the Kupu large fault. The secondary faults derived from the large fault are widely developed and closely related to gold mineralization. Based on previous studies and mathematical statistics,using the remote sensing interpretation technology,the structural ore-control characteristics of the Kalamaili gold ore belt are summarizes and a preliminary advantage analysis is conducted. The results show that the NW-NWW fault is an extremely favorable ore-controlling structure in the metallogenic belt,which controls the distribution of the metallogenic belt,and the secondary faults and derived faults associated with it are the ore-bearing structures,controlling the deposit( Point) location. The ore-controlling effect of NE-NEE and NE on gold mines is not obvious. Gold deposits( points) are mostly distributed in the density zone of 5 ～ 15/100 km~2. The peak density of the linear structure intersection point is 25/100 km~2. As the density value increases,the gold deposits( points) decrease.
引文
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[2]徐斌,路彦明,顾雪祥,等.新疆奇台地区双泉金矿床的成矿时代[J].地质通报,2009,28(12):1871-1884.XU Bin,LU Yanming,GU Xuexiang,et al.Metallogenic epoch of the Shuangquan gold deposit in Qitai area,Xinjiang,China[J].Geological Bulletin of China,2009,28(12):1871-1884.(in Chinese with English abstract)
[3]杨高学,李永军,吴宏恩,等.东准噶尔卡拉麦里地区黄羊山花岗岩和包体LA-ICP-MS锆石U-Pb测年及地质意义[J].岩石学报,2009,25(12):3197-3207.YANG Gaoxue,LI Yongjun,WU Honge,et al.LA-ICP-MSzircon U-Pb dating of the Huangyangshan pluton and its enclaves from Kalamaili area eastern Junggar,Xinjiang,and geological implications[J].Acta Petrologica Sinica,2009,25(12):3197-3207.(in Chinese with English abstract)
[4]韩琼.东准噶尔卡拉麦里成矿带金矿成矿规律与成矿模式研究[D].乌鲁木齐:新疆大学,2014.HAN Qiong.Study of metallogenic regularity and mineralization model of Kalamaili mineralization belt in East Junggar[D].Urumqi:Xinjiang University,2014.(in Chinese)
[5]谢磊.东准噶尔卡拉麦里成矿带金矿多源信息成矿预测[D].乌鲁木齐:新疆大学,2015.XIE Lei.Metallogenic prediction of multi-source information in Karamari metallogenic belt of East Junggar[D].Urumqi:Xinjiang University,2015.(in Chinese)
[6]弓小平,凤骏,宋相龙,等.新疆东准噶尔卡拉麦里成矿带成矿预测与高精度遥感信息提取研究[M].北京:地质出版社,2015.GONG Xiaoping,FENG Jun,SONG Xianglong,et al.Study on metallogenic prediction and high precision remote sensing information extraction in Karamairi ore-forming belt of Eastern Junggar,Xinjiang[M].Beijing:Geological Press,2015.(in Chinese)
[7]张忠伟.新疆东准卡拉麦里成矿带金铜矿产资源定量评价研究[D].北京:中国地质大学(北京),2012.ZHANG Zhongwei.Quantitative Evaluation of Gold and Copper Mineral Resources in the Karamayli Metallogenic Belt of Dongzhun,Xinjiang[D].Beijing:China University of Geosciences(Beijing),2012.(in Chinese)
[8]徐斌.新疆卡拉麦里成矿带金矿构造-岩浆控矿规律及找矿预测研究[D].北京:中国地质大学(北京),2010.XU Bin.Study on the metallogenic tectonic-magmatic orecontrolling law and prospecting prediction of the Kalamaili metallogenic belt,Xinjiang[D].Beijing:China University of Geosciences(Beijing),2010.(in Chinese)
[9]雷杰.新疆奇台县苏吉金矿成矿条件与找矿前景浅析[J].新疆有色金属,2009,32(6):10-12.LEI Jie.Analysis on Metallogenic Conditions and Prospecting Potential of Suji Gold Deposit in Qitai County,Xinjiang[J].Xinjiang Youse Jinshu,2009,32(6):10-12.(in Chinese)
[10]杨晓疆,韩静波.地球化学勘查在富蕴县金水泉金矿找矿中的应用[J].新疆地质,2010,28(3):267-273.YANG Xiaojiang,HAN Jingbo.Application of geochemical exploration in geological prospecting of Jinshuiquan gold deposit in Fuyun of Xinjiang[J].Xinjiang Geology,2010,28(3):267-273.(in Chinese with English abstract)
[11]田红彪,弓小平,韩琼,等.奇台双泉金矿成矿模式研究[J].新疆地质,2013,(3):196-200.TIAN Hongbiao,GONG Xiaoping,HAN Qiong,et al.Study on the metallogenic model of Shuangquan gold deposit in Qitai[J].Xinjiang Geology,2013,(3):196-200.(in Chinese with English abstract)
[12]张栋,路彦明,郭小东,等.东准噶尔地区与韧-脆性剪切带有关的金(铜)成矿---构造变形转换与成矿时限及地球动力学背景[J].黄金,2011,32(3):8-15.ZHANG Dong,LU Yanming,GUO Xiaodong,et al.Au(Cu)mineralization associated with ductile-brittle shear zone in east Junggar area:conversion of structural deformation,metallogenic time and geodynamics background[J].Gold,2011,32(3):8-15.(in Chinese with English abstract)