| 程华,李水平,刘振超,孙进,张勇,谢彦军,宋永利.近场源三极激电法在坦桑尼亚铁建造型金矿床中的应用[J].矿产勘查,2018,9(10):2015-2020 |
| 近场源三极激电法在坦桑尼亚铁建造型金矿床中的应用 |
| Study on Application of Near-field Source 3-pole IP in Exploraitonof BIF Gold Deposit in Tanzania |
| 投稿时间：2018-05-24 |
| DOI： |
| 中文关键词: 近场源激电 条带状铁建造 金矿床 坦桑尼亚 |
| 英文关键词: near-field source 3-pole of IP,banded iron formation,gold deposits,Tanzania |
| 基金项目:国土资源部国际科技合作项目(编号:2010-188)资助和国土资源部国外矿产资源风险勘查专项(编号:201210B01600252)联合资助。 |
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| 中文摘要: |
| 铁建造(BIF)型金矿是坦桑尼亚绿岩带中的主要金矿床类型,该国每年大约有1/3的黄金产量来自于此类型矿床；为了给矿区成矿预测和优化选择靶区提供地球物理信息,投入了装置轻便、效率高的近场源三极激电方法,对浅层矿化岩层或矿化带进行了快速圈定；近场源激电异常特征反映了与金矿有关的条带状铁建造(BIF)的延伸方向、位置和范围,为钻探工程布置、进而发现隐伏-半隐伏铁建造型金矿床提供了充分依据,其测量效果较好,目前该矿区已成为大型铁建造(BIF)型金矿产地,提交了(332)+(333)金金属量34 t。 |
| 英文摘要: |
| The Banded Iron Formation (BIF) gold deposit is one of the main type of gold deposits in greenstone belt of Tanzania, which produces about one-third of the Country's annual gold production. In order to provide geophysical information for the metallogenic prediction and optimization of targets selection, the Near-field source 3-pole IP method on a lightweight and high efficiency device has been used to identify the shallow mineralized rocks or mineralized belt quilckly. The characteristics of Near-field source IP anomalies could reflect the extension direction, location and scope of the banded iron formation (BIF) relateing to gold deposits, providing a full basis for drilling location and furthur discovery of concealed - half concealed BIF gold deposits. It has been proved that the survey results are rather good that the mining area has become a concentrated area of BIF gold deposits and has been submitted 34 tons of gold metal (332+ 333). |
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