秦岭华阳川地区航空伽马能谱异常特征及铀找矿方向
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摘要
华阳川铀铌铅矿床是北秦岭造山带内一种类型特殊的铀多金属矿床。为了实现在外围快速找矿的目的,在矿床及其周边开展了1∶1万高精度航空磁放测量,获得高精度的航空放射性数据,通过对航放数据的解释,对下一步找矿勘探工作的部署有重要意义。通过对宏观上放射性元素的分布特征的研究,认为铀、钾异常分布特征相似,在测区西部有大面积分布,东部无成规模异常,钍异常在测区中部形成东西向异常带,与韧性剪切带的位置一致。铀异常有明显受北西向和北东向两组断裂控制,且在华阳川断裂北东盘异常面积大,强度高,但南西盘太古宙地层却无明显铀异常。本次研究计算了钍钾比、钍铀比、铀钾比、古铀含量、活性铀含量等参数,掌握了元素在不同地层单元的迁移富集规律。根据航空放射性异常,开展地面验证工作,圈定3条铀矿化带,达到了快速找矿的目的,对铀矿等战略性矿产的成矿规律研究及找矿勘查有积极意义。
The Huayangchuan uranium-niobium-lead ore deposit is a unique type of uranium polymetallic deposit in North Qinling orogenic belt. For the purpose of rapid mineral exploration, 1∶10000 airborne magnetic and gamma-ray spectrometric measurement was conducted in the peripheral area to obtain high-precision airborne radioactive data. The explanation of these data is of great significance to the deployment of future exploration work. The distribution of radioactive elements shows that potassium and uranium anomalies are similarly located in the western part of the survey area, but there are no anomalies in the east. Thorium anomalies have formed an EW-trending anomaly belt at the center of the survey area, which is consistent with the ductile shear zone. The uranium anomalies are controlled by NW-and NE-trending faults. They are obviously distributed in the northeast plate with large area and high anomaly intensity, but there are no anomalies in Archean metamorphic rocks of southwest plate. The ratios of Th/K, Th/U and U/K, original U and active U were calculated in this study to understand the migration and enrichment of radioactive elements in different strata. According to the airborne gamma-ray spectrometry anomalies, ground verification work delineated three uranium mineralization zones, thus achieving the purpose of rapid mineral exploration. The result obtained by the authors can play a guiding role in the study of ore-forming process and the prospecting for uranium minerals and other strategic minerals.
The Huayangchuan uranium-niobium-lead ore deposit is a unique type of uranium polymetallic deposit in North Qinling orogenic belt. For the purpose of rapid mineral exploration, 1∶10000 airborne magnetic and gamma-ray spectrometric measurement was conducted in the peripheral area to obtain high-precision airborne radioactive data. The explanation of these data is of great significance to the deployment of future exploration work. The distribution of radioactive elements shows that potassium and uranium anomalies are similarly located in the western part of the survey area, but there are no anomalies in the east. Thorium anomalies have formed an EW-trending anomaly belt at the center of the survey area, which is consistent with the ductile shear zone. The uranium anomalies are controlled by NW-and NE-trending faults. They are obviously distributed in the northeast plate with large area and high anomaly intensity, but there are no anomalies in Archean metamorphic rocks of southwest plate. The ratios of Th/K, Th/U and U/K, original U and active U were calculated in this study to understand the migration and enrichment of radioactive elements in different strata. According to the airborne gamma-ray spectrometry anomalies, ground verification work delineated three uranium mineralization zones, thus achieving the purpose of rapid mineral exploration. The result obtained by the authors can play a guiding role in the study of ore-forming process and the prospecting for uranium minerals and other strategic minerals.
引文
Asfahani J,Al-Hent R,Aissa M.2008.Aerial gamma spectrometric survey as a tool for evaluating the uranium remobilization degree:Case study from Al-Awabed area,Northern Palmyrides,Syria[J].Applied Radiation and Isotopes,66,1262-1274.
Asfahani J,Al-Hent R,Aissa M.2012.Radioactive and geological analysis of airborne gammas pectrometric data for locating favorable traps for uranium prospecting in the Syrian desert(Area-1),Syria[J].Applied Radiation and Isotopes,70:2317-2327.
Che Yongfei,Zhang Yunlong,Zhao Yingjun,Lin Ziyu.2015.Application of airborne spectrometry data to the exploration of calcrete-hosted uranium deposit in Yilgarn Area Western Australia[J].Uranium Geology,31(1):44-51(in Chinese with English abstract).
Chen Yexun,Wang Nanping,Hou Shengli.2005.Nuclear Radiation Field and Radioactive Exploration[M].Beijing:Geological Publishing House,384(in Chinese).
Elkhadragy A A,Ismail A A,Eltarras M M,Azzazy A A.2017.Utilization of airborne gamma ray spectrometric data for radioactive mineral exploration of G.Abu Had-G.Umm Qaraf area,South Eastern Desert,Egypt[J].Nriag Journal of Astronomy and Geophysics,6,148-161.
Gao Cheng,Kang Qingqing,Zhang Xiongmao,Chen Ximin,Hu Jinping.2015.Uranium occurrences and carbonatite pertology in Huayangchuan[J].Shaanxi Geology,33(2):10-13(in Chinese with English abstract).
Guo Chunjie,Wang Di,Wang Baojun.2013.Application of natural gamma ray spectrometry in research of sedimentary[J].World Well Logging Technology,(1):34-36(in Chinese with English abstract).
Guo Wei,Zhou Dingwu,Ren Junfeng,Zhou Xiaohu,Sang Haiqing.2008.Characteristics of the Huayangchuan ductile shear zones in the Xiao-qinling Mountains,Shaanxi,China,and its regional tectonic significance[J].Geological Bulletin of China,27(6):823-828(in Chinese with English abstract).
He Sheng,Li Ziying,Hui Xiaochao,Guo Jian.2016.40Ar/39Ar geochronology of biotite in Huayangchuan uranium-polymetallic deposit in Shanxi Province and its geological significance[J].Uranium Geology,32(3):159-164(in Chinese with English abstract).
Hui Xiaochao.2015.Research of Geochemical Characteristics during Uranium Polymetallic Mineralization Process in Huayangchuan,Shaanxi Province[D].Beijing:Beijing Research Institute of Uranium Geology,1-146(in Chinese with English abstract).
Hui Xiaochao,He Sheng.2016.Mineralization characteristic of carbonatite Veins in Huangyangchuan U-polymetal deposit,Shanxi Province[J].Uranium Geology,32(2):93-98(in Chinese with English abstract).
Hui Xiaochao,Li Ziying,Feng Zhangsheng,Cheng Dejin.2014.Research on the occurrence state of U in the Huayangchuan U-polymetallic deposit,Shaanxi Province[J].Acta Mineralogica Sinica,34(4):573-580(in Chinese with English abstract).
Jin Ruoshi,Cheng Yinhang,Li Jianguo,Sima Xianzhang,Miao Peisen,Wang Shaoyi,Ao Cong,Li Hongliang,Li Yangfeng,Zhang Tianfu.2017.Late Mesozoic continental basin“Red and Black beds”coupling formation constraints on the sandstone uranium mineralization in northern China[J].Geology in China,44(2):205-223(in Chinese with English abstract).
Ke Dan,Han Shaoyang,Hou Huiqun,Zhao Dan.2009.Aeroradioactive information extraction and integration for the exploration of granite-type uranium deposits[J].Uranium Geology,25(6):349-354(in Chinese with English abstract).
Maacha Lhou,Jaffal Mohammed,Jarni Abdelmajid,Kchikach Azzouz,Mouguina El Mostafa,Zouhair Mohamed,Ennaciri Aomar,Saddiqi Omar.2017.A contribution of airborne magnetic,gamma ray spectrometric data in understanding the structure of the Central Jebilet Hercynian massif and implications for mining[J].Journal of African Earth Sciences,134:389-403.
Wang Jianfeng.1986.Uranium Geochemistry Course[M].Beijing:Atom Energy Press,1-572.
Wang Linjun,Xu Cheng,Wu Min,Song Wenlei.2011.A study of fluid inclusion from Huayangchuan Carbonatite[J].Acta Mineralogica Sinica,31(3):372-379(in Chinese with English abstract).
Wang Sili,Nie Fengjun,Yan Zhaobin,He Naishuo,Zhang Yuanyuan,Zhang Pengfei.2018.Lithologic characteristics and modes of occurrence of uranium of the target strata in the Nalinggou uranium deposit of Ordos Basin[J].Geology in China,45(3):573-590(in Chinese with English abstract).
Yang Xiaofa,Lin Changsong,Yang Haijun,Peng Li,Liu Jingyan,Xiao Tianjun,Tong Jianyu,Wang Haiping,Li Huanpu.2010.Application of natural gamma ray spectrometry in analysis of Late Ordovician carbonate sequence stratigraphicanalysis in middle Tarim Basin[J].Oil and Gas Exploration,45(3):384-391(in Chinese with English abstract).
Youssef Mohamed A S,Sabra Mohamed Elsadek M,Abdeldayem Abdelaziz L,Masoud Alaa A,Mansour Salah A.2017.Uranium migration and favourable sites of potential radioelement concentrations in Gabal Umm Hammad area,Central Eastern Desert,Egypt[J].NRIAG Journal of Astronomy and Geophysics,6,368-378.
Yu Xuehui.1992.Geological,petrol-mineralogical characteristics and origin of the carbonatites from Huayangchuan,Shaanxi Province[J].Earth Science--Journal of China University of Geosciences,17(2):151-158(in Chinese with English abstract).
Zhang Songyang,Fan Yiren,Li Huiyin.2006.Karst carbonate reservoir division and contrast based on natural gamma ray spectrometry logging in Tahe Oilfield[J].Journal of China University of Petroleum,30(6):35-41(in Chinese with English abstract).
Zhao Yue,Xu Qiang,Liang Yeping,Zhao Hongsong,Tang Chaomiao,Zheng Cui.2018.Uranium mineralization characteristics of Cretaceous periodand prospecting direction of the Hurenbuqi depression in Erlian basin,Inner Mongolia[J].Geology in China,45(1):168-177(in Chinese with English abstract).
车永飞,张云龙,赵英俊,林子瑜.2015.航空γ能谱测量数据在西澳伊尔岗地区钙结岩型铀矿勘查中的应用[J].铀矿地质,31(1):44-51.
程业勋,王南萍,侯胜利.2005.核辐射场与放射性勘查[M].北京:地质出版社,384.
高成,康清清,张熊猫,陈希民,胡进平.2015.华阳川碳酸岩岩石特征及铀矿赋存状态[J].陕西地质,33(2):10-13.
郭春杰,王迪,王保军.2013.自然伽马能谱测井在沉积学中的应用研究[J].国外测井技术,(1):34-36.
郭威,周鼎武,任军锋,周小虎,桑海清.2008.陕西小秦岭华阳川韧性剪切带的特征及其区域构造意义[J].地质通报,27(6):823-828.
何升,李子颖,惠小朝,郭建.2016.陕西华阳川铀多金属矿床黑云母40Ar/39Ar年龄及其地质意义[J].铀矿地质,32(3):159-164.
惠小朝.2015.陕西省华阳川铀多金属成矿作用地球化学研究[D].北京:核工业北京地质研究院,1-146.
惠小朝,李子颖,冯张生,程德进.2014.陕西华阳川铀多金属矿产铀赋存状态研究[J].矿物学报,34(4):573-580.
惠小朝,何升.2016.华阳川铀多金属矿床碳酸岩脉矿化特征[J].铀矿地质,32(2):93-98.
金若时,程银行,李建国,司马献章,苗培森,王少轶,奥琮,里宏亮,李艳锋,张天福.2017.中国北方晚中生代陆相盆地红-黑岩系耦合产出对砂岩型铀矿成矿环境的制约[J].中国地质,44(2):205-223.
柯丹,韩绍阳,侯惠群,赵丹.2009.花岗岩型铀矿勘查中航放信息的提取与综合[J].铀矿地质,25(6):349-354.
王剑锋.1986.铀地球化学教程[M].原子能出版社,1-572.
王林均,许成,吴敏,宋文磊.2011.华阳川碳酸岩流体包裹体研究[J].矿物学报,31(3):372-379.
王思力,聂逢君,严兆彬,何乃烁,张媛媛,张鹏飞.2018.鄂尔多斯盆地纳岭沟铀矿床目的层岩石学及铀存在形式[J].中国地质,45(3):573-590.
阳孝法,林畅松,杨海军,彭莉,刘景彦,肖天君,佟建宇,王海平,李换浦.2010.自然伽马能谱在塔中地区晚奥陶世碳酸盐岩层序地层分析中的应用[J].石油地球物理勘探,45(3):384-391.
喻学惠.1992.陕西华阳川碳酸岩地质学和岩石学特征及其成因初探[J].地球科学--中国地质大学学报,17(2):151-158.
张松扬,范宜仁,李会银.2006.基于自然伽马能谱测井的岩溶型碳酸盐岩储层层位划分与对比[J].中国石油大学学报(自然科学版),30(6):35-41.
赵岳,徐强,梁叶萍,赵红松,唐朝苗,郑翠.2018.内蒙古二连盆地呼仁布其凹陷白垩系铀矿化特征与找矿远景[J].中国地质,45(1):168-177.
(1)陕西省地质调查院.2008.陕西省1∶250000潼关县幅建造构造图.
Asfahani J,Al-Hent R,Aissa M.2012.Radioactive and geological analysis of airborne gammas pectrometric data for locating favorable traps for uranium prospecting in the Syrian desert(Area-1),Syria[J].Applied Radiation and Isotopes,70:2317-2327.
Che Yongfei,Zhang Yunlong,Zhao Yingjun,Lin Ziyu.2015.Application of airborne spectrometry data to the exploration of calcrete-hosted uranium deposit in Yilgarn Area Western Australia[J].Uranium Geology,31(1):44-51(in Chinese with English abstract).
Chen Yexun,Wang Nanping,Hou Shengli.2005.Nuclear Radiation Field and Radioactive Exploration[M].Beijing:Geological Publishing House,384(in Chinese).
Elkhadragy A A,Ismail A A,Eltarras M M,Azzazy A A.2017.Utilization of airborne gamma ray spectrometric data for radioactive mineral exploration of G.Abu Had-G.Umm Qaraf area,South Eastern Desert,Egypt[J].Nriag Journal of Astronomy and Geophysics,6,148-161.
Gao Cheng,Kang Qingqing,Zhang Xiongmao,Chen Ximin,Hu Jinping.2015.Uranium occurrences and carbonatite pertology in Huayangchuan[J].Shaanxi Geology,33(2):10-13(in Chinese with English abstract).
Guo Chunjie,Wang Di,Wang Baojun.2013.Application of natural gamma ray spectrometry in research of sedimentary[J].World Well Logging Technology,(1):34-36(in Chinese with English abstract).
Guo Wei,Zhou Dingwu,Ren Junfeng,Zhou Xiaohu,Sang Haiqing.2008.Characteristics of the Huayangchuan ductile shear zones in the Xiao-qinling Mountains,Shaanxi,China,and its regional tectonic significance[J].Geological Bulletin of China,27(6):823-828(in Chinese with English abstract).
He Sheng,Li Ziying,Hui Xiaochao,Guo Jian.2016.40Ar/39Ar geochronology of biotite in Huayangchuan uranium-polymetallic deposit in Shanxi Province and its geological significance[J].Uranium Geology,32(3):159-164(in Chinese with English abstract).
Hui Xiaochao.2015.Research of Geochemical Characteristics during Uranium Polymetallic Mineralization Process in Huayangchuan,Shaanxi Province[D].Beijing:Beijing Research Institute of Uranium Geology,1-146(in Chinese with English abstract).
Hui Xiaochao,He Sheng.2016.Mineralization characteristic of carbonatite Veins in Huangyangchuan U-polymetal deposit,Shanxi Province[J].Uranium Geology,32(2):93-98(in Chinese with English abstract).
Hui Xiaochao,Li Ziying,Feng Zhangsheng,Cheng Dejin.2014.Research on the occurrence state of U in the Huayangchuan U-polymetallic deposit,Shaanxi Province[J].Acta Mineralogica Sinica,34(4):573-580(in Chinese with English abstract).
Jin Ruoshi,Cheng Yinhang,Li Jianguo,Sima Xianzhang,Miao Peisen,Wang Shaoyi,Ao Cong,Li Hongliang,Li Yangfeng,Zhang Tianfu.2017.Late Mesozoic continental basin“Red and Black beds”coupling formation constraints on the sandstone uranium mineralization in northern China[J].Geology in China,44(2):205-223(in Chinese with English abstract).
Ke Dan,Han Shaoyang,Hou Huiqun,Zhao Dan.2009.Aeroradioactive information extraction and integration for the exploration of granite-type uranium deposits[J].Uranium Geology,25(6):349-354(in Chinese with English abstract).
Maacha Lhou,Jaffal Mohammed,Jarni Abdelmajid,Kchikach Azzouz,Mouguina El Mostafa,Zouhair Mohamed,Ennaciri Aomar,Saddiqi Omar.2017.A contribution of airborne magnetic,gamma ray spectrometric data in understanding the structure of the Central Jebilet Hercynian massif and implications for mining[J].Journal of African Earth Sciences,134:389-403.
Wang Jianfeng.1986.Uranium Geochemistry Course[M].Beijing:Atom Energy Press,1-572.
Wang Linjun,Xu Cheng,Wu Min,Song Wenlei.2011.A study of fluid inclusion from Huayangchuan Carbonatite[J].Acta Mineralogica Sinica,31(3):372-379(in Chinese with English abstract).
Wang Sili,Nie Fengjun,Yan Zhaobin,He Naishuo,Zhang Yuanyuan,Zhang Pengfei.2018.Lithologic characteristics and modes of occurrence of uranium of the target strata in the Nalinggou uranium deposit of Ordos Basin[J].Geology in China,45(3):573-590(in Chinese with English abstract).
Yang Xiaofa,Lin Changsong,Yang Haijun,Peng Li,Liu Jingyan,Xiao Tianjun,Tong Jianyu,Wang Haiping,Li Huanpu.2010.Application of natural gamma ray spectrometry in analysis of Late Ordovician carbonate sequence stratigraphicanalysis in middle Tarim Basin[J].Oil and Gas Exploration,45(3):384-391(in Chinese with English abstract).
Youssef Mohamed A S,Sabra Mohamed Elsadek M,Abdeldayem Abdelaziz L,Masoud Alaa A,Mansour Salah A.2017.Uranium migration and favourable sites of potential radioelement concentrations in Gabal Umm Hammad area,Central Eastern Desert,Egypt[J].NRIAG Journal of Astronomy and Geophysics,6,368-378.
Yu Xuehui.1992.Geological,petrol-mineralogical characteristics and origin of the carbonatites from Huayangchuan,Shaanxi Province[J].Earth Science--Journal of China University of Geosciences,17(2):151-158(in Chinese with English abstract).
Zhang Songyang,Fan Yiren,Li Huiyin.2006.Karst carbonate reservoir division and contrast based on natural gamma ray spectrometry logging in Tahe Oilfield[J].Journal of China University of Petroleum,30(6):35-41(in Chinese with English abstract).
Zhao Yue,Xu Qiang,Liang Yeping,Zhao Hongsong,Tang Chaomiao,Zheng Cui.2018.Uranium mineralization characteristics of Cretaceous periodand prospecting direction of the Hurenbuqi depression in Erlian basin,Inner Mongolia[J].Geology in China,45(1):168-177(in Chinese with English abstract).
车永飞,张云龙,赵英俊,林子瑜.2015.航空γ能谱测量数据在西澳伊尔岗地区钙结岩型铀矿勘查中的应用[J].铀矿地质,31(1):44-51.
程业勋,王南萍,侯胜利.2005.核辐射场与放射性勘查[M].北京:地质出版社,384.
高成,康清清,张熊猫,陈希民,胡进平.2015.华阳川碳酸岩岩石特征及铀矿赋存状态[J].陕西地质,33(2):10-13.
郭春杰,王迪,王保军.2013.自然伽马能谱测井在沉积学中的应用研究[J].国外测井技术,(1):34-36.
郭威,周鼎武,任军锋,周小虎,桑海清.2008.陕西小秦岭华阳川韧性剪切带的特征及其区域构造意义[J].地质通报,27(6):823-828.
何升,李子颖,惠小朝,郭建.2016.陕西华阳川铀多金属矿床黑云母40Ar/39Ar年龄及其地质意义[J].铀矿地质,32(3):159-164.
惠小朝.2015.陕西省华阳川铀多金属成矿作用地球化学研究[D].北京:核工业北京地质研究院,1-146.
惠小朝,李子颖,冯张生,程德进.2014.陕西华阳川铀多金属矿产铀赋存状态研究[J].矿物学报,34(4):573-580.
惠小朝,何升.2016.华阳川铀多金属矿床碳酸岩脉矿化特征[J].铀矿地质,32(2):93-98.
金若时,程银行,李建国,司马献章,苗培森,王少轶,奥琮,里宏亮,李艳锋,张天福.2017.中国北方晚中生代陆相盆地红-黑岩系耦合产出对砂岩型铀矿成矿环境的制约[J].中国地质,44(2):205-223.
柯丹,韩绍阳,侯惠群,赵丹.2009.花岗岩型铀矿勘查中航放信息的提取与综合[J].铀矿地质,25(6):349-354.
王剑锋.1986.铀地球化学教程[M].原子能出版社,1-572.
王林均,许成,吴敏,宋文磊.2011.华阳川碳酸岩流体包裹体研究[J].矿物学报,31(3):372-379.
王思力,聂逢君,严兆彬,何乃烁,张媛媛,张鹏飞.2018.鄂尔多斯盆地纳岭沟铀矿床目的层岩石学及铀存在形式[J].中国地质,45(3):573-590.
阳孝法,林畅松,杨海军,彭莉,刘景彦,肖天君,佟建宇,王海平,李换浦.2010.自然伽马能谱在塔中地区晚奥陶世碳酸盐岩层序地层分析中的应用[J].石油地球物理勘探,45(3):384-391.
喻学惠.1992.陕西华阳川碳酸岩地质学和岩石学特征及其成因初探[J].地球科学--中国地质大学学报,17(2):151-158.
张松扬,范宜仁,李会银.2006.基于自然伽马能谱测井的岩溶型碳酸盐岩储层层位划分与对比[J].中国石油大学学报(自然科学版),30(6):35-41.
赵岳,徐强,梁叶萍,赵红松,唐朝苗,郑翠.2018.内蒙古二连盆地呼仁布其凹陷白垩系铀矿化特征与找矿远景[J].中国地质,45(1):168-177.
(1)陕西省地质调查院.2008.陕西省1∶250000潼关县幅建造构造图.
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