img

QQ群聊

img

官方微信

  • CN 62-1112/TF 
  • ISSN 1005-2518 
  • 创刊于1988年
高级检索
矿产勘查与资源评价

内蒙古桦树沟金矿综合找矿效果及意义

  • 吴家富 ,
  • 王翔 ,
  • 黄俊
展开
  • 安徽省地质调查院,安徽  合肥   230001
吴家富(1968-),男,安徽巢湖人,高级工程师,从事区域矿产地质调查工作。ahwjf103@sina.com

收稿日期: 2016-02-23

  修回日期: 2016-09-14

  网络出版日期: 2017-01-22

基金资助

内蒙古地质勘查基金项目“内蒙古乌兰察布市察哈尔右翼前旗等四幅1∶5万区域矿产地质调查”(编号:[2008]矿调2-22)资助

Comprehensive Prospecting Effect and Significance of Huashugou Gold Deposit in Inner Mongolia

  • WU Jiafu ,
  • WANG Xiang ,
  • HUANG Jun
Expand
  • Anhui Institute of Geological Survey,Hefei    230001,Anhui,China

Received date: 2016-02-23

  Revised date: 2016-09-14

  Online published: 2017-01-22

摘要

在1/5万察哈尔右翼前旗等四幅区域矿产地质调查的基础上,通过化探系统采集样品、地质填图和综合找矿方法发现了桦树沟金矿,并对金矿成矿提出了新的认识。野外地质研究发现,桦树沟矿区NE、近EW向断裂控制着异常展布及地表构造蚀变带和铁锰矿化体的延伸,围岩及矿化蚀变主要有硅化、钾化、绢云母化及沿裂隙充填的铁锰矿化和褐铁矿化。运用综合找矿方法筛选找矿靶区,将桦树沟异常面积从28.8 km2缩小到3.6 km2,有助于更好地找寻金矿床。采用水系沉积物和土壤测量方法对矿区异常元素进行了测试,并根据富集系数讨论富集成矿问题,结果显示:与成矿关系密切的桦树沟岩体强富集元素有Ag、Pb、Zn、As、Sb、W、Bi和Mo等,其围岩集宁岩群富集—强富集元素有Ag、Pb、Au、Cu、As、Sb、W和Mo等,表明岩浆活动为成矿提供了含矿热液,而热液又与围岩发生交代,导致金银等多金属在成矿有利部位富集成矿。结合1/1万地质填图、1/1万土壤测量等方法进一步开展异常检查评价,发现多个样品含量已达矿石边界品位,异常浓集中心及分带明显,经探槽工程揭露并圈定出2条金矿体,其分布特征、物质组成和控矿因素已基本查明,表明该区具有良好的找矿前景。

本文引用格式

吴家富 , 王翔 , 黄俊 . 内蒙古桦树沟金矿综合找矿效果及意义[J]. 黄金科学技术, 2016 , 24(6) : 32 -38 . DOI: 10.11872/j.issn.1005-2518.2016.06.032

Abstract

 Huashugou gold mine was found,and the new understanding of gold mineralization was put forward basis on the geological survey in four 1/50000 regional map of Chahar right Qianqi,etc,by using the geochemical samples exploration,geological mapping and the comprehensive prospecting methods.Field geological study found that NE and nearly EW trend faults control the distribution of the abnormal faults and the outspread of the surface structure alteration belt and iron manganese ore body in the mining area.The surrounding rock and mineralization alteration are mainly silicide,potassium,sericitization and along the fissure filling iron manganese ore and limonite.Selecting the prospecting target area by comprehensive prospecting method,Huashugou anomaly area were reduced from 28.8 km2 to 3.6 km2,help to better looking for gold deposit.By using stream sediment and soil measurement method,anomaly elements were tested,and according to the enrichment coefficient,the results showed that Ag,Pb,Zn,As,Sb,W,Bi,Mo,etc.,has strong enrichment in Huashugou groove rock,and closely associated with mineralization,its surrounding rock,the Jining Group are enrich and strong enrich in Ag,Pb,Au,Cu,As,Sb,W,Mo,etc.,show that magma activity provides a ore-bearing hydrothermal mineralization,and hydrothermal metasomatic with surrounding rock,causing much metals such as gold and silver enrichment in the favourable area.Combining 1/10000 geological mapping methods and soil measuring,further anomaly examination and evaluation was conducted,found multiple ore sample content with cutoff grade,obvious abnormal thick concentrated heart and zoning.The implementation of exploratory trench engineering expose and mark out 2 gold orebodies,the distribution feature,composition and ore-controlling factors have been identified,indicating that the area has good ore prospects.

参考文献

[1] 黄俊,薛全君,吴家富,等.内蒙古桦树沟金矿区成矿地质特征及找矿方向[J].黄金科学技术,2013,21(4):15-19.
[2] 任天祥,伍宗华,羌荣生.区域化探异常筛选与查证的方法技术[M].北京:地质出版社,1998.
[3] 中华人民共和国地质矿产行业标准.地球化学普查规范(比例尺1∶50000):DZ/T0011-91[S].北京:中国标准出版社,1996.
[4] 中华人民共和国地质矿产行业标准.地球化学普查规范:DZ/T0145-94[S].北京:中国标准出版社,1995.
[5] 内蒙古自治区地质矿产局.内蒙古自治区区域地质志[M].北京:地质出版社,1991.
[6] 吴家富,黄俊,王翔,等.内蒙古乌兰察布市察哈尔右翼前旗等四幅1∶5万区域矿产地质调查成果报告[R].集宁:内蒙古自治区有色地质勘查局609队,2012.
[7] 刘桂阁,李艳秋,常春郊,等.区域化探数据处理的综合异常法研究[J].黄金科学技术,2012,20(4):67-69.
[8] 龚美菱.评价金化探异常的新方法[J].有色金属矿产与勘查,1995,4(2):100-106.
[9] 罗先熔,文美兰,欧阳菲,等.勘查地球化学[M].北京:冶金工业出版社,2007.
[10] 申伍军,王学求.内蒙古大型银矿集区地球化学预测[J]. 地球学报,2010,31(3):449-455.
[11] 黄俊,吴家富,鲁如魁,等.内蒙古兵图金矿成因探讨及找矿方向[J].黄金科学技术,2010,18(4):1-5.
[12] 夏冬,牛树银,徐国,等.内蒙古哈达门沟金矿控矿机制[J].黄金科学技术,2011,19(2):13-17.

文章导航

/