鄂尔多斯盆地南缘HFU-109异常特征及找矿意义
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摘要
在分析鄂尔多斯盆地南缘1∶5万高精度航放资料的基础上,采用地面伽玛总量测量、能谱测量和土壤氡测量等工作手段,对筛选的HFU-109号航放异常开展了异常查证。结合区域地质资料对异常区的成矿地质条件进行了综合分析。查证结果显示,空中异常特征与地面查证异常形态及走向特征大体一致,异常区地层具备"泥-砂-泥"结构,砂体较发育,结构疏松,且透水性较好,伽玛能谱异常及氡异常突出。总体认为该异常具备较好的砂岩型铀找矿潜力。
Based on the 1∶ 50 000 high-precision airborne radioactive data in the southern margin of Ordos Basin,the detected HFU-109 aeroradioactive anomalies were verified by using total ground gamma measurement,spectrometry measurement and soil radon measurement. Combined with the regional geological data,the ore-forming geological conditions in abnormal areas are analyzed comprehensively. According to the verification results,the airborne radioactive anomalies delineate based on 1 ∶ 50 000 high-precision airborne radioactive data corresponds well with uranium anomalies delineated by ground gamma spectrometry measurements. The anomalous area possesses a mud-sand-mud structure and the sand bodies are more developed with the better water permeability and the gamma spectrum anomalies and radon anomalies are prominent. It is generally believed that the anomaly has a good potential for uranium exploration in sandstone type.
Based on the 1∶ 50 000 high-precision airborne radioactive data in the southern margin of Ordos Basin,the detected HFU-109 aeroradioactive anomalies were verified by using total ground gamma measurement,spectrometry measurement and soil radon measurement. Combined with the regional geological data,the ore-forming geological conditions in abnormal areas are analyzed comprehensively. According to the verification results,the airborne radioactive anomalies delineate based on 1 ∶ 50 000 high-precision airborne radioactive data corresponds well with uranium anomalies delineated by ground gamma spectrometry measurements. The anomalous area possesses a mud-sand-mud structure and the sand bodies are more developed with the better water permeability and the gamma spectrum anomalies and radon anomalies are prominent. It is generally believed that the anomaly has a good potential for uranium exploration in sandstone type.
引文
1何卫军.鄂尔多斯盆地南部侏罗系直罗组-安定组沉积体系研究[D].西安:西北大学,2007He Weijun.Study on sedimentary system of Jurassic Zhiluo formationAnding formation in southern Ordos Basin[D].Xi'an:Northwest University,2007
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7李晓翠,刘武生,贾立城,等.鄂尔多斯盆地南部砂岩型铀矿成矿预测[J].铀矿地质,2014,30(6):321-327Li Xiaocui,Liu Wusheng,Jia Licheng,et al.Prognosis of sandstone hosted uranium deposit in southern Ordos Basin[J].Uranium Geology,2014,30(6):321-327
8刘坤鹏,王晓鹏,韩迪.鄂尔多斯盆地富县-甘泉地区砂岩型铀矿资源调查评价项目总体设计[R].咸阳:核工业203研究所,2018Liu Kunpeng,Wang Xiaopeng,Han Di.Overall design of the investigation and evaluation project of sandstone type uranium resources in Fuxian-Ganquan,Ordos Basin[R].Xianyang:No.203 Research Institute of Nuclear Industry,2018
9刘阳,曹惠锋,计波,等.鄂尔多斯盆地南部双龙地区铀储层空间分布与成因[J].中国西部科技,2015,14(5):32-34Liu Yang,Cao Huifeng,Ji Bo,et al.The spatial distribution and genesis of uranium reservoirs in Shuanglong Area,southern Ordos Basin[J].Science and Technology of West China,2015,14(5):32-34
10毛明陆.渭北隆起北部构造分析与油气成藏预测[D]西安:西北大学,1997Mao Minglu.Tectonic analysis and hydrocarbon accumulation prediction of northern Weibei uplift[D].Xi'an:Northwest University,1997
2胡俊华,郭科锋.鄂尔多斯盆地南缘砂岩型铀矿找矿潜力分析[J].铀矿地质,2017,33(3):37-143Hu Junhua,Guo Kefeng.Prospecting potential analysis of sandstonetype Uranium deposit in the southern margin of Ordos basin[J].Uranium Geology,2017,33(3):137-143
3陈宏斌,徐高中,王金平,等.鄂尔多斯盆地南缘店头铀矿床矿化特征及其与东胜铀矿床对比[J].地质学报,2006(5):724-732,786Chen Hongbin,Xu Gaozhong,Wang Jinping,et al.Mineralization characteristics of Diantou uranium deposit in the southern margin of Ordos and in comparison with Dongsheng uranium deposit[J].Acta Geologica Sinica,2006(5):724-732,786
4彭小华,曹惠锋,刘厚宁.鄂尔多斯盆地南部双龙地区铀成矿特征分析[J].世界核地质科学,2018,35(1):8-15Peng Xiaohua,Cao Huifeng,Liu Houning.Analysis on uranium metallogenic characteristics in Shuanglong Area,southern Ordos Basin[J].World Nuclear Geoscience.2018,35(1):8-15
5王培建,陈江源,孙栋华,等.鄂尔多斯盆地南缘1∶5万航空物探(磁、放)调查成果报告[R].石家庄:核工业航测遥感中心,2018Wang Peijian,Chen Jiangyuan,Sun Donghua,et al.Achievements reports on 1∶50 000 aerial geophysical survey(magnetic and radioactivity)on the southern margin of Ordos basin[R].Shijiazhuang:Nuclear Industry Aerial Survey and Remote Sensing Center,2018
6陈江源,牛家骥,卢亚运,等.鄂尔多斯盆地南缘航空物探异常查证成果报告[R].石家庄:核工业航测遥感中心,2018Chen Jiangyuan,Niu Jiaji,Lu Yayun,et al.Achievements reports on investigation and verification of aerial geophysical anomalies in the southern margin of Ordos Basin[R].Shijiazhuang:Nuclear Industry Aerial Survey and Remote Sensing Center,2018
7李晓翠,刘武生,贾立城,等.鄂尔多斯盆地南部砂岩型铀矿成矿预测[J].铀矿地质,2014,30(6):321-327Li Xiaocui,Liu Wusheng,Jia Licheng,et al.Prognosis of sandstone hosted uranium deposit in southern Ordos Basin[J].Uranium Geology,2014,30(6):321-327
8刘坤鹏,王晓鹏,韩迪.鄂尔多斯盆地富县-甘泉地区砂岩型铀矿资源调查评价项目总体设计[R].咸阳:核工业203研究所,2018Liu Kunpeng,Wang Xiaopeng,Han Di.Overall design of the investigation and evaluation project of sandstone type uranium resources in Fuxian-Ganquan,Ordos Basin[R].Xianyang:No.203 Research Institute of Nuclear Industry,2018
9刘阳,曹惠锋,计波,等.鄂尔多斯盆地南部双龙地区铀储层空间分布与成因[J].中国西部科技,2015,14(5):32-34Liu Yang,Cao Huifeng,Ji Bo,et al.The spatial distribution and genesis of uranium reservoirs in Shuanglong Area,southern Ordos Basin[J].Science and Technology of West China,2015,14(5):32-34
10毛明陆.渭北隆起北部构造分析与油气成藏预测[D]西安:西北大学,1997Mao Minglu.Tectonic analysis and hydrocarbon accumulation prediction of northern Weibei uplift[D].Xi'an:Northwest University,1997
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