新疆雪米斯坦火山岩带阿日合拉提地段隐伏断层的物探异常特征
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摘要
新疆雪米斯坦火山岩带铀-多金属矿化受EW向深大断裂控制,因阿日合拉提地段第四系广泛覆盖,依靠野外观察来查明断裂构造位置、产状存在困难。对研究区开展音频大地电磁测深与土壤氡浓度综合测量,断层在反演电阻率断面图上表现为高低阻等值线梯度密集带或相对低阻带,在断层破碎带上方土壤氡浓度出现明显的高值异常,曲线尖峰对应着断层在地表的投影位置。综合分析反演电阻率和土壤氡浓度异常特征,快速地查明了隐伏断层的位置、产状及其深部展布形态,为进一步工作部署提供了参考依据。
The uranium-polymetallic mineralization of the Xuemistan volcanic belt in Xinjiang is controlled by EW-trending deep faults.For its widely covered by Quaternary system,the location and occurrence of fault in the Arihelati section is difficult to be explored with field observation.In this study,a comprehensive measurement of audio magnetotelluric(AMT)and soil radon concentration in the area was made,the fault appeared as a high-low-resistivity contour gradient dense belt or a relatively low-resistivity zone on the inversion resistivity profile,and the soil radon concentration appeared as high value anomalies above the fracture zone,with the curve peak corresponding to the projected position of the fault on the surface.Through the comprehensive analysis of the characteristics of inversion resistivity and soil radon concentration anomalies,the location,occurrence and deep distribution pattern of the concealed fault was identified quickly,which would provide a reference for further work deployment.
The uranium-polymetallic mineralization of the Xuemistan volcanic belt in Xinjiang is controlled by EW-trending deep faults.For its widely covered by Quaternary system,the location and occurrence of fault in the Arihelati section is difficult to be explored with field observation.In this study,a comprehensive measurement of audio magnetotelluric(AMT)and soil radon concentration in the area was made,the fault appeared as a high-low-resistivity contour gradient dense belt or a relatively low-resistivity zone on the inversion resistivity profile,and the soil radon concentration appeared as high value anomalies above the fracture zone,with the curve peak corresponding to the projected position of the fault on the surface.Through the comprehensive analysis of the characteristics of inversion resistivity and soil radon concentration anomalies,the location,occurrence and deep distribution pattern of the concealed fault was identified quickly,which would provide a reference for further work deployment.
引文
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[16]刘春来,庹先国,黄连美,等.地下氡气测量推断隐伏断层走向[J].物探与化探,2011,35(2):226-229.
[17]刘江平,周斌,李庆红.氡(Rn)射气测量在胜利油田隐伏断裂研究中的应用[J].华北地震科学,2004,22(1):42-45.
[18]李茂,山科社,李晓绿,等.连山关-祁家堡子地区岩体接触带AMT与土壤氡测量物探异常特征[J].铀矿地质,2014,30(2):100-107.
[19]金永吉,朱明永,王谋.综合测井资料在白杨河矿区铀-铍矿勘查中的应用[J].铀矿地质,2013,29(3):172-178.
[20]籍增贤,陈志财,张岩.新疆和布克赛尔县白杨河地区阿日合拉提地段物探测量报告[R].核工业航测遥感中心,2015.
[2]李彦龙,刘刚,王谋,等.新疆雪米斯坦火山岩带铀资源勘查及评价[R].核工业二一六大队,2010.
[3]陈奋雄,刘刚,张雷,等.新疆雪米斯坦火山岩带铀资源勘查及评价[R].核工业二一六大队,2008.
[4]刘刚,李彦龙,李炎龙,等.新疆和布克赛尔县白杨河地区1∶5万铀矿区域地质调查[R].核工业二一六大队,2010.
[5]520矿田新西工地矿床储量报告[R].西北一八二大队廿四队,1966.
[6]徐德利,李文良,卿敏,等.EH4电法测量在峪耳崖金矿区的应用[J].地球学报,2004,25(1):79-82.
[7]于爱军,黄辉,徐德利,等.综合电法在新疆哈西金矿区寻找隐伏矿的应用[J].地质与勘探,2006,42(6):57-61.
[8]樊战军,于爱军,陈孝强,等.EH4连续电导率测量在森林覆盖区找矿中的应用效果:以黑龙江省嘉荫县张三沟金矿区为例[J].黄金科学技术,2007,15(1):48-53.
[9]郭晓东,陈孝强,王治华,等.EH4连续电导率测量在宝兴厂矿区的应用[J].地质与勘探,2009,45(1):52-58.
[10]王斌,陈孝强,樊战军,等.EH4连续电导率仪在陕西省镇安县金龙山矿区控矿构造研究中的应用[J].地质与勘探,2014,50(3):564-571.
[11]鲁辉,涂善波,胡伟华.EH-4电磁系统在深大隐伏断层探测中的应用[J].勘察科学技术,2009(5):59-61.
[12]李富,王永华,吴文贤.EH-4电磁成像系统在隐伏构造探测中的应用[J].中国地质,2009,36(6):1375-1381.
[13]籍增贤,孔志召.新疆和布克赛尔县杨庄地区音频大地电磁测量报告[R].核工业航测遥感中心,2008.
[14]籍增贤,孔志召,牛禹,等.新疆和布克赛尔县白杨河地区物探测量报告[R].核工业航测遥感中心,2010.
[15]余传涛,刘鸿福,张新军.测氡法用于隐伏断层探测的实验研究[J].勘探地球物理进展,2010,33(5):332-335,307.
[16]刘春来,庹先国,黄连美,等.地下氡气测量推断隐伏断层走向[J].物探与化探,2011,35(2):226-229.
[17]刘江平,周斌,李庆红.氡(Rn)射气测量在胜利油田隐伏断裂研究中的应用[J].华北地震科学,2004,22(1):42-45.
[18]李茂,山科社,李晓绿,等.连山关-祁家堡子地区岩体接触带AMT与土壤氡测量物探异常特征[J].铀矿地质,2014,30(2):100-107.
[19]金永吉,朱明永,王谋.综合测井资料在白杨河矿区铀-铍矿勘查中的应用[J].铀矿地质,2013,29(3):172-178.
[20]籍增贤,陈志财,张岩.新疆和布克赛尔县白杨河地区阿日合拉提地段物探测量报告[R].核工业航测遥感中心,2015.