地球物理方法在塔里木盆地孔雀河斜坡带砂岩型铀矿预测评价中的应用
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摘要
对塔里木盆地孔雀河斜坡带主要地质单元(岩石)的电性、密度、地震波阻抗等参数特征进行了分析研究,将地面γ能谱测量、土壤氡法、瞬变电磁测深、浅层地震勘探等方法,在这一地区找铀矿的应用效果综合评价后,认为本区具有开展多种地球物理方法的物性前提。孔雀河斜坡带北部盖层产状平缓,具有冲积扇-河流相沉积体系,且有放射性元素富集的迹象,是砂岩型铀矿成矿的有利地区。
This papper analysed and studed the geophysical characteristics,such as electric and density and seismic wave impedance parameters of strata(rocks)in Kongquehe monoclinal area of Tarim basin.Based on the comprehensive estimate of application affects of geophysical method,such as ground γ-spectrometric,soil radon survey,transient electric and magnetic method and shallow seismic prospecting etc,it was believed that the study area has favorable physical-premises of manifold geophysical prospecting for sandstone-type uranium deposit.The cover strata are sligtly dipped and belong to alluvial fan-fluvial facies,and bear the trace of radioactive elements concentrating,therefore the area is favourable for the metallegenesis of in-situ leachable sandstone uramium deposit.
This papper analysed and studed the geophysical characteristics,such as electric and density and seismic wave impedance parameters of strata(rocks)in Kongquehe monoclinal area of Tarim basin.Based on the comprehensive estimate of application affects of geophysical method,such as ground γ-spectrometric,soil radon survey,transient electric and magnetic method and shallow seismic prospecting etc,it was believed that the study area has favorable physical-premises of manifold geophysical prospecting for sandstone-type uranium deposit.The cover strata are sligtly dipped and belong to alluvial fan-fluvial facies,and bear the trace of radioactive elements concentrating,therefore the area is favourable for the metallegenesis of in-situ leachable sandstone uramium deposit.
引文
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[7]江民忠,王怀武,江国元.潮水-雅布赖盆地可地浸砂岩型铀矿成矿远景分析[J].铀矿地质,2002.18(4):250~255.
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[10]王正邦.国外地浸砂岩型铀矿地质发展现状与展望[J].铀矿地质,2002.18(1):9~21.
[2]贾润胥,等.中国塔里木盆地北部油气地质研究[M].北京:中国地质大学出版社,1991.
[3]马宝林.塔里木盆地沉积岩形成演化与油气[M].北京:科学出版社,1991.
[4]康玉柱.中国塔里木盆地石油地质特征及资源评价[M].北京:地质出版社,1996.
[5]杨福山,等.新疆南天山铀矿带萨阿尔明-克孜勒塔格远景区铀矿综合区调报告[R].甘肃:核工业西北地质局213大队,1988.
[6]魏虎,屈有恒,等.新疆尉犁县铁干里克地区铀矿资源综合调查报告[R].乌鲁木齐:核工业216大队,2003.
[7]江民忠,王怀武,江国元.潮水-雅布赖盆地可地浸砂岩型铀矿成矿远景分析[J].铀矿地质,2002.18(4):250~255.
[8]沈克林.塔里木盆地北部地震地层解释与油气检测[M].北京:中国地质大学出版社,1993.
[9]魏虎,等.新疆塔里木盆地北部构造物探研究及编图报告[R].乌鲁木齐:核工业216大队,1995.
[10]王正邦.国外地浸砂岩型铀矿地质发展现状与展望[J].铀矿地质,2002.18(1):9~21.
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