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物探与化探  2020, Vol. 44 Issue (1): 99-106    DOI: 10.11720/wtyht.2020.1294
     地质调查·资源勘查 本期目录 | 过刊浏览 | 高级检索 |
地球物理信息和控矿构造研究在乌克兰米丘林铀矿床中的应用
王永飞, 李宝新(), 曹云, 刘晨阳
四川省核工业地质调查院,四川 成都 610053
The application of geophysical information and ore-controlling structures to the Michurinskoye uranium deposit, Ukraine
Yong-Fei WANG, Bao-Xin LI(), Yun CAO, Chen-Yang LIU
Sichuan Institute of Nuclear Geology, Chengdu 610053,China
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摘要 

乌克兰中央铀成矿省米丘林铀矿床地表覆盖严重,为了对已知矿体建立快速有效的评价体系,本次采用土壤氡气、伽马能谱等放射性探测方法,结合已有区域重磁、地震、测井等资料进行综合对比分析研究,总结了米丘林铀矿床的地质—地球物理找矿预测模型,构建了热液型铀矿深部铀成矿信息识别技术和深部铀资源探测评价综合技术体系,为解决国内相似矿区及危机矿山接替资源找矿中的快速评价技术问题提供一定的参考依据。

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王永飞
李宝新
曹云
刘晨阳
关键词 土壤氡气、γ能谱、重磁;控矿构造乌克兰米丘林铀矿床    
Abstract

Based on the survey of soil radon gas and gamma spectrum in the Michurinskoye uranium deposit in Central Ukrainian U province, and the comprehensive comparative analysis of the existing regional gravity, magnetic, seismic and logging data, the authors used various geophysical exploration techniques to evaluate the existing orebodies rapidly and effectively. On the basis of the analysis and study of ore-controlling structures in tectonic alteration zones, the authors constructed the identification technology of deep uranium metallogenic information and the comprehensive technology of deep uranium resources exploration and evaluation for hydrothermal uranium deposits, and provided theoretical guidance for the prospecting of alternative resources in similar mining areas and crisis mines.

Key wordssoil radon    γ spectrum;    gravity and magnetism    ore-controlling structure    Ukraine    Michurinskoye uranium deposit
收稿日期: 2019-05-27      出版日期: 2020-03-03
ZTFLH:  P631  
基金资助:科技部国家重点研发计划项目“乌克兰中部基洛沃格勒地块深部铀资源勘探关键技术与装备合作研究”(2016YFE0206300)
通讯作者: 李宝新     E-mail: 376432449@qq.com
作者简介: 王永飞(1982-),男,本科,高级工程师,主要从事铀矿勘查和研究工作。Email: 370759859@qq.com
引用本文:   
王永飞, 李宝新, 曹云, 刘晨阳. 地球物理信息和控矿构造研究在乌克兰米丘林铀矿床中的应用[J]. 物探与化探, 2020, 44(1): 99-106.
Yong-Fei WANG, Bao-Xin LI, Yun CAO, Chen-Yang LIU. The application of geophysical information and ore-controlling structures to the Michurinskoye uranium deposit, Ukraine. Geophysical and Geochemical Exploration, 2020, 44(1): 99-106.
链接本文:  
http://www.wutanyuhuatan.com/CN/10.11720/wtyht.2020.1294      或      http://www.wutanyuhuatan.com/CN/Y2020/V44/I1/99
Fig.1  乌克兰前寒武纪地盾地质构造及次级断块组成(a)和铀矿床分布图(b)[4]
1—奥长环斑深成花岗岩(KN-科尔松-新和平城岩体,Kr-克罗斯廷岩体);2—花岗深成岩(NK-新乌克兰岩体);3—剪切带:①—NK剪切带;②—GT剪切带;③—KK剪切带;④—OP剪切带;4—基性岩脉;5—块间(断块)断裂;6—主断层/背斜;7—交代型铀矿床;8—脉岩型铀矿床;9—沉积岩型;10—环斑花岗岩(KN);11—镁铁质-超镁铁质岩;12—微斜长石花岗岩(NK);13—因古尔-因古列茨单元变质岩(片麻岩等);14—康克斯克-维克霍夫采夫单元岩石(角闪岩、富铁岩石);15—克里沃罗格单元(含镁铁岩);16—第聂伯-萨克萨甘单元(斜长花岗岩、混合岩等);断裂:F1—布格—米罗诺夫块间断裂;F2—克里沃罗格—克列门丘格块间断裂,f1—安诺夫—兹韦尼哥罗德断层,f2—基洛沃格勒断层;f3—苏博京—马舒林断层;f4—诺科斯坦斯尼卡断层;f5—格洛斯托克断层,f6—阿达巴什断层
区位 地层单元 厚度/m 岩性
因古尔(I)
断块东段
因古尔-
因古列茨
罗迪奥尼夫卡
Rodionivka
2200 带黑云母片岩的石英岩。在博诺马带夹层,顶部有大理石、黑云母和角闪石—黑云母片麻岩和片岩中间层
阿尔茨米夫斯克
Artcmivsk
200 含黑云母和黑云母闪石片麻岩和片岩夹层的含磁铁矿石英岩
泽莲娜里奇卡
Zelena Richka
180 正角闪岩、角闪石和角闪石—黑云母正棱岩和杂岩体,底部有石英岩夹层的石英岩和矽线石黑云母,石榴石云母片岩,顶部有石墨或滑石—碳酸盐片岩夹层
因古尔(I)
断块
因古尔—
因古列茨
切切利夫卡
Chechelivka
>2000 黑云母,通常为石榴子石片麻岩和含角闪石、片状堇青石和硅锰矿—堇青石片麻岩夹层的片岩
斯帕西夫卡
Spasivfca
>3000 黑云母—辉石、黑云母—角闪石—辉石局部磁铁矿片麻岩、片岩、黑云母、石墨黑云母和堇青石黑云母片麻岩和角闪岩互层
Table 1  乌克兰中央地盾因古尔断块和因古尔断块东段中古元古代岩石地层单位的对比[4]
Fig.2  米丘林矿床中段平剖面简图及主矿带三维示意模型
1—新生代覆盖物;2—片麻岩;3—花岗岩;4—变正长岩;5—钠长岩;6—糜棱岩;7—伟晶岩;8—断层;9—矿体
Fig.3  米丘林矿床钠交代蚀变分带
1—新生代覆盖物;2—片麻岩;3—花岗岩;4—变正长岩;5—钠长岩;6—糜棱岩;7—断层;8—矿体;9—蚀变分带
Fig.4  乌克兰中部基洛沃格勒铀成矿区重磁特征
Fig.5  米丘林铀矿床土壤氡气剖面
1—新生代覆盖物;2—片麻岩;3—花岗岩;4—变正长岩;5—钠长岩;6—糜棱岩;7—断层;8—矿体
岩石名称 U/10-6 Th/10-6 K/10-6 ∑/10-6 Th/U 备注
混合花岗岩 6.82 47.36 4.84 45.61 6.94 围岩
混合花岗岩 4.13 37.45 5.12 38.83 9.07 围岩
片麻岩 3.33 28.39 3.71 31.16 8.53 围岩
中粗粒花岗岩 5.58 13.44 7.16 35.46 2.41 围岩
赤铁矿化—磁铁矿混合岩 5.65 27.90 5.38 37.93 4.94 围岩
中粒黑云母花岗岩 7.05 58.96 6.05 53.33 8.36 围岩
角闪岩 17.43 18.49 1.90 36.21 1.06 基性岩脉
灰白色钠长岩 29.76 13.11 1.88 48.28 0.44 近矿围岩
角闪岩 28.39 11.85 1.86 46.66 0.42 基性岩脉
赤红色钠长岩 112.01 11.99 0.61 120.77 0.11 矿化
钠长岩 211.42 18.82 0.64 232.14 0.09 矿化
赤红色钠长岩 138.19 17.94 1.02 154.24 0.13 矿化
钠长岩 202.11 38.49 2.73 244.62 0.19 矿化
Table 2  米丘林矿床地表及深部围岩与含矿岩石伽马能谱测量结果
Fig.6  米丘林铀矿床地质—地球物理找矿模型
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