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  • ISSN 1005-2518 
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矿产勘查与资源评价

甘肃北山破城山东一带铜金矿地球化学勘查及找矿方向

  • 刘永彪 ,
  • 李省晔 ,
  • 杨镇熙 ,
  • 赵吉昌 ,
  • 胡小春 ,
  • 王喆
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  • 1.甘肃省地质矿产勘查开发局第四地质矿产勘查院,甘肃 酒泉 735000
    2.甘肃省矿产资源勘查重点实验室,甘肃 酒泉 735000
    3.河北地质大学,河北 石家庄 050031
刘永彪(1992-),男,甘肃会宁人,高级工程师,从事矿产地质调查及勘查工作。840614630@qq.com
李省晔(1992-),男,甘肃民乐人,高级工程师,从事矿产地质调查及勘查工作。491249893@qq.com

收稿日期: 2024-03-22

  修回日期: 2024-07-26

  网络出版日期: 2024-12-20

基金资助

甘肃省重点人才项目“甘肃北山南带韧性剪切带型金矿成矿机制、成矿规律及找矿方向研究”(2023RCXM04);甘肃省科技计划项目“甘肃北山北带中低温热液型金矿床成矿作用及找矿模式研究”(24JRRF004);中央引导地方科技发展资金项目“甘肃西部铜镍硫化物矿床成矿作用与找矿预测研究”(24ZYQF001);甘肃省地质矿产勘查开发局2024年度创新资金项目“老矿山深边部找矿预测”(2024KS04);甘肃省省级基础地质调查项目“1∶25000矿产地质调查技术要求研究”(甘财资环〔2022〕43号);“甘肃省肃北县破城山一带金铜多金属矿产调查”(甘财资环〔2022〕43号)

Geochemical Exploration and Prospecting Direction of Copper-Gold Deposit in Eastern Pochengshan of Beishan,Gansu Province

  • Yongbiao LIU ,
  • Shengye LI ,
  • Zhenxi YANG ,
  • Jichang ZHAO ,
  • Xiaochun HU ,
  • Zhe WANG
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  • 1.Fourth Institute of Geological and Mineral Exploration of Gansu Provincia Bureau of Geology and Mineral Re-sources,Jiuquan 735000,Gansu,China
    2.Key Laboratory of Mineral Resources Exploration,Gansu Province,Jiuquan 735000,Gansu,China
    3.Hebei GEO University,Shijiazhuang 050031,Hebei,China

Received date: 2024-03-22

  Revised date: 2024-07-26

  Online published: 2024-12-20

摘要

破城山东铜金矿位于磁海—公婆泉Fe-Cu-Au-Pb-Zn-Mn-W-Sn成矿带,破城山—玉石山金银(铜铅锌)叶蜡石成矿亚带。为了查明破城山东一带金、铜地球化学特征及找矿前景,在区内开展了1/1万岩屑测量工作,R型聚类分析和相关性分析显示,Au和Cu为成矿潜力较大的主成矿元素。结合研究区成矿地质背景和元素组合特征,在区内圈定了1/1万岩屑测量综合异常4处,选择2处综合异常进行了详细查证,其中Ay-3综合异常面积为0.48 km2,主异常元素Au含量平均值为53.01×10-9,峰值为1 000×10-9,衬度为17.67;Ay-4综合异常面积为0.35 km2,主异常元素Cu含量平均值为881.22×10-6,峰值为10 000×10-6,衬度为27.53。经查证,新发现金矿体1条,铜矿体2条,金、铜矿体与圈定的综合异常套合较好。岩屑地球化学研究表明:研究区具有良好的金、铜找矿前景。根据研究区成矿地质条件,金矿体位于糜棱岩化花岗闪长岩与围岩接触的断裂带中,成矿时代为印支期。综合分析认为,糜棱岩化花岗闪长岩与长城系古硐井群绿泥石英片岩断裂接触带是今后的主要找矿方向。

本文引用格式

刘永彪 , 李省晔 , 杨镇熙 , 赵吉昌 , 胡小春 , 王喆 . 甘肃北山破城山东一带铜金矿地球化学勘查及找矿方向[J]. 黄金科学技术, 2024 , 32(6) : 990 -1001 . DOI: 10.11872/j.issn.1005-2518.2024.06.078

Abstract

The copper-gold deposit in eastern Pochengshan is located in the Fe-Cu-Au-Pb-Zn-Mn-W-Sn metallogenic belt of Cihai-Gongpoquan and the gold-silver (Cu-Pb-Zn) pyrophyllite metallogenic sub-belt of Pochengshan-Yushishan.Historically,a 1∶50 000 scale regional geological survey and a 1∶50 000 scale mineral survey have been conducted in this area.These surveys have facilitated the preliminary identification of the regional stratigraphic sequence,the chronology of intrusive rocks,and the interrelationship between structural features and mineralization processes.Additionally,two comprehensive anomalies have been delineated based on 1∶50 000 scale stream sediment analysis.However,the extensive anomalies of gold and copper identified through the sediment survey in the Pochengshan river system have not been thoroughly investigated in previous studies.To further clarify the geochemical characteristics and prospecting potential of gold and copper,1∶10 000 scale cuttings survey was conducted in the area.R-type cluster analysis and correlation analysis indicate that Au and Cu are the primary metallogenic elements,exhibiting significant metallogenic potential.Based on the metallogenic geological background and the elemental combination characteristics of the study area,four comprehensive anomalies were delineated through a 1∶10 000 cuttings survey.Among these anomalies,two comprehensive anomalies were selected for detailed verification.The Ay-3 anomaly area of 0.48 km²,with the primary anomalous element being gold (Au),exhibiting a mean concentration of 53.01×10-⁹,a peak value of 1 000×10-⁹,and a contrast ratio of 17.67.The Ay-4 anomaly area of 0.35 km²,with copper (Cu) as the primary anomalous element,showing a mean concentration of 881.22×10-⁶,a peak value of 10 000×10-⁶,and a contrast ratio of 27.53.The gold orebody and copper orebody are located in regions 1 and 2,respectively.These orebodies correspond closely with the delineated comprehensive anomaly.Geochemical analysis of rock debris indicates that the area holds significant potential for gold and copper deposits.The newly discovered gold orebody is situated within a fault zone where mylonitized granodiorite is in contact with the wall rock,and it is controlled by an east-west fault structure.The mylonitized granodiorite may serve as a crucial source for the copper-gold deposit.The contact zone between the late Silurian mylonitized granodiorite and the green mud quartz schist fracture of the ancient Dongjing Group of the Changcheng system is considered as the main prospecting direction in the future.

参考文献

Chen X, Wu Y S, Zhou K F,et al,2021.Origin and evolution of ore fluids of the Jinwozi gold deposit,Beishan orogen,NW China[J].Ore Geology Reviews,134.
  Chen Yuchuan, Zhu Yusheng, Xiao Keyan,et al,2006.Division of minerogenic provinces(bults) in China[J].Mineral Deposits25(Supp.1):1-6.
  Dai J H, Xue L F, Sang X J,et al,2020.Research method for dyke swarms based on UAV remote sensing in desert areas:A case study in Beishan,Gansu,China[J].IOP Conference Series: Earth and Environmental Science558(3):032040.
  Feng Zhihan, Liu Yuanping, Ye Dejin,et al,2002.Preliminary study of landscape geochemical features in Gansu[J].Geology Geochemistry30(3):68-72.
  He Wang, Luo Xiaorong, Gao wen,et al,2019.Geochemical characteristics of stream sediments in the Wulonggou-Gaodi area,Dulan County,Qinghai Province and their exploration prospective[J].Bulletion of Mineralogy,Petrology and Geochemistry38(5):1017-1023.
  Huang Botao, Wang Guoqiang, Wang Juli,et al,2023.Sedimentary age,provenance and tectonic implications of the diamictite in Pochengshan area,Beishan:Constraints from detrital ziron U-Pb dating and Hf isotope[J].Acta Geologica Sinica91(10):3213-3224.
  Jiang Sihong, Nie Fengjun, Chen Weishi,et al,2006. 40Ar-39Ar geochronology and fluid inclusion features of the Nanjingshan gold deposit,Baishan Mt.,Gansu Province[J].Geological Review52(2):266-275.
  Li Huan, Xu Guozhi, Sun Lu,et al,2019.A quantitative method for integrated anomaly map of geochemical prospecting and application[J].Geological Bulletin of China38(6):1062-1070.
  Liu Yongbiao, Chen Haiyun, Fang Ying,et al,2023.Investigation report of gold and copper polymetallic minerals in Baicheng Mountain area,Subei County,Gansu Province[R].Jiuquan:Fourth Institute of Geological and Mineral Exploration of Gansu Provincia Bureau of Geology and Mineral Resources.
  Liu Yongbiao, Li Shengye, Zhao Jichang,et al,2022.Ore prospecting effect of cuttage survey in weak anomaly area of stream sediment survey in Beishan,Gansu Province:Taking the discovery of Heishannan gold mine in Yanchi as an example[J].Geoscience36(6):1525-1537.
  Liu Yongsheng, Luo Xianrong, Cao Baidi,et al,2023.Soil geochemical characteristics and prospecting prodiction in Sanyu area,Li County,Gansu Province[J].Northwestern Geology56(6):340-351.
  Niu Liang, Li Peng, Ha’er Ka,et al,2014.Geological characteristics and mineralization conditions of the Jinwozi gold deposit,Xinjiang[J].Geology and Exploration50(1):8-17.
  Su Yihuai, Liu Panfeng, Luo XianRong,et al,2021.Soil geochemical characteristics and prospect potential of Tanggaang survey area,Xiahe County,Gansu[J].Journal of Guilin University of Technology41(1):34-41.
  Wang Jianjun, Wang Fengchun, Deng Hao,et al,2021.Report on the Prospective Investigation Results of Copper Polymetallic Mines in the Gongpoquan-Shuangjianshan Area of Beishan,Gansu Province[R].Lanzhou:Geological Survey of Gansu Province.
  Wang Lei, Yang Jianguo, Wang Xiaohong,et al,2015.LA-ICP-MS Zircon U-Pb dating and its geochemical implications of Yingmaotuo granitic rockds[J].Bulletin of Mineralogy,Petrology and Geochemistry34(3):583-591.
  Xu Renting,2002.The Study of Geochemical Technology for Mineral Exploration in the Arid Gobi Desert Terrainz,Baishan Mountains Area,Gansu[D].Beijing:China University of Geosciences(Beijing).
  Yang Zhenxi, Ding Shuhong, Zhang Jing,et al,2023.The discovery and prospection significance of the Qianhongquan gold deposit in the south Beishan orogenic belt,Gansu Province,China[J].Northwestern Geology56(6):274-284.
  Yao Binbin, Wei Xiangpeng,2018.Geological and geochemical characteristics of Tenglong gold deposit in the Dengnan Mountain area,Gansu[J].World Nonferrous Metals,(7):154-155,157.
  Ye Honggang, Zhang Dehui, Cheng Zhuhua,et al,2014.The prospecting effect of debris geochemical survey in the Xiaobinggou lead-zinc mining area in Subei,Gansu Province[J].Geophysical and Geochemical Exploration38(2):295-303.
  Yu L, Zhang J, Wang Q,et al,2020.Geochronology and geochemistry of granodiorite at Jinwozi Au deposit: Tectonomagmatic evolution for Palaeozoic Beishan Orogen(Central Asian Orogenic Belt) in NW China[J].Geological Journal55(10):6779-6798.
  Yuan He, Luo Xianrong, Li Wuyi,et al,2017.Geochemical characteristics of soil and prospecting prodiction of the Bangzhuoma region,Tibet[J].Geology and Exploration53(3):472-481.
  Zhang Yi, Nie Fengjun, Sun Binbin,et al,2005.Geochemical debris survey method in shallow-covered areas in east-central Inner Mongolia and its application in ore target screening[J].Geology in China32(4):172-181.
  Zhang Yupeng, Shi Dongyan, Mingqi Lü,et al,2022.Application effect of rock debris geochemical survey in prospecting in Sandaowanzi shallow overburden area,Heilongjiang Province[J].Gold Science and Technology30(5):651-663.
  Zhao Enhou, Fan Guolin, Xu Weidong,et al,1988.Report of 1∶50000 regional geological survey of Poziquan and Baicheng Mountain[R].Jiuquan:Jiuquan Geological and Mi-neral Survey Team of Gansu Provincial Bureau of Geology and Mineral Resources.
  陈毓川,朱裕生,肖克炎,等,2006.中国成矿区(带)的划分[J].矿床地质25(增1):1-6.
  冯治汉,刘元平,叶得金,等,2002.甘肃省景观地球化学特征初探[J].地质地球化学30(3):68-72.
  何旺,罗先熔,高文,等,2019.青海省都兰县五龙沟—高地地区水系沉积物地球化学特征及找矿远景[J].矿物岩石地球化学通报38(5):1017-1023.
  黄博涛,王国强,王居里,等,2023. 北山造山带破城山地区冰碛岩沉积时代、物源及构造意义:来自碎屑锆石U-Pb年代学及Lu-Hf同位素的约束[J].地质学报91(10):3213-3224.
  江思宏,聂凤军,陈伟十,等,2006.北山地区南金山金矿床的40Ar-39Ar同位素年代学及其流体包裹体特征[J].地质论评52(2):266-275.
  李欢,徐国志,孙璐,等,2019.化探综合异常图定量编制方法及应用[J].地质通报38(6):1062-1070.
  刘永彪,陈海云,范应,等,2023.甘肃省肃北县破城山一带金铜多金属矿产调查报告[R].酒泉:甘肃省地质矿产勘查开发局第四地质矿产勘查院.
  刘永彪,李省晔,赵吉昌,等,2022.岩屑测量在甘肃北山水系沉积物测量弱异常区的找矿效果:以盐池黑山南金矿的发现为例[J].现代地质36(6):1525-1537.
  刘永胜,罗先熔,曹佰迪,等,2023.甘肃省礼县三峪地区土壤地球化学特征及找矿预测[J].西北地质56(6):340-351.
  牛亮,李鹏,卡哈尔,等,2014.新疆金窝子金矿田地质特征及成矿条件分析[J].地质与勘探50(1):8-17.
  苏艺怀,刘攀峰,罗先熔,等,2021.甘肃省夏河县唐尕昂地区土壤地球化学特征及找矿前景分析[J].桂林理工大学学报41(1):34-41.
  王建军,王逢春,邓皓,等,2012.甘肃北山公婆泉—双尖山地区铜多金属矿远景调查成果报告[R].兰州:甘肃省地质调查院.
  王磊,杨建国,王小红,等,2015.甘肃北山营毛沱地区花岗岩类LA-ICP-MS锆石U-Pb定年及地质意义[J].矿物岩石地球化学通报34(3):583-591.
  徐仁廷,2006.甘肃北山干旱荒漠景观化探方法技术研究[D].北京:中国地质大学(北京).
  杨镇熙,丁书宏,张晶,等,2023.甘肃北山南带前红泉金矿的发现及其找矿意义[J].西北地质56(6):274-284.
  姚宾宾,韦祥蓬,2018.甘肃党河南山地区腾龙金矿地质地球化学特征[J].世界有色金属,(7):154-155,157.
  叶红刚,张德会,程主华,等,2014.岩屑地球化学测量在小冰沟铅锌矿区的找矿效果[J].物探与化探38(2):295-303.
  袁和,罗先熔,李武毅,等,2017.西藏邦卓玛地区土壤地球化学特征及找矿预测[J].地质与勘探53(3):472-481.
  张义,聂凤军,孙彬彬,等,2005.内蒙古中东部浅覆盖区化探岩屑测量方法研究及靶区优选应用[J].中国地质32(4):696-705.
  张玉鹏,史冬岩,吕明奇,等,2022.岩屑地球化学测量在黑龙江省三道湾子浅覆盖区的找矿应用效果[J].黄金科学技术30(5):651-663.
  赵恩厚,范国林,徐卫东,等,1988.坡子泉幅、破城山幅1∶5万区域地质调查报告[R].酒泉:甘肃省地质矿产局酒泉地质矿产调查队.
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