航空VTEM测量系统在多金属矿产勘查中的应用
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摘要
随着我国矿产勘探程度的深入,找矿突破日益困难,空白区及深部找矿成为突破新方向,勘探对象具有深(埋深较大的隐伏矿)、难(高山峻岭、偏远地区、水体覆盖、沙漠等)、低(规模小、矿化程度低)等特点,对找矿技术提出了更高、更难、更新的要求。以加拿大Geotech公司VTEM为代表的直升机载航空瞬变电磁法测量技术由于其信噪比高、分辨能力强、探测深度大、找矿效果好等优势而得到了应用,核工业航测遥感中心引进了该技术并在国内多个省区成功地应用于多金属矿产勘查。文章依托VTEM在国内的实测资料,研究了接触交代型铅锌矿、构造蚀变型金矿、火山块状硫化物型铜锌矿的航空TEM、航磁异常特征,为国内同类型矿床找矿工作提供方法借鉴。
With the deepening of mineral exploration in China, the prospecting breakthrough is becoming more and more difficult, and the blank area and deep prospecting have become the breakthrough direction. The exploration object is of such characteristics as deep(buried deep concealed ore), difficult(mountains, remote areas, water cover, desert, etc.), low(small, Low degree of mineralization) and so on, which needs higher, more difficult and updated requirements.The helicopter airborne transient electromagnetic method, which is represented by VTEM of Geotech in Canada, has been applied because of its high signal-to-noise ratio, strong resolving power, large depth of exploration and good prospecting effect. ARCN introduced VTEM in 2013, and successfully applied to polymetallic mineral exploration in some provinces of China. Based on the measured data of VTEM in China, this paper studied the ATEM and aeromagnetic abnormal features of contact-type lead-zinc deposits, structural alteration gold deposits and volcanic massive sulfide-type copper-zinc ores. We hope it can work to provide method reference for the same type ore deposits in China
With the deepening of mineral exploration in China, the prospecting breakthrough is becoming more and more difficult, and the blank area and deep prospecting have become the breakthrough direction. The exploration object is of such characteristics as deep(buried deep concealed ore), difficult(mountains, remote areas, water cover, desert, etc.), low(small, Low degree of mineralization) and so on, which needs higher, more difficult and updated requirements.The helicopter airborne transient electromagnetic method, which is represented by VTEM of Geotech in Canada, has been applied because of its high signal-to-noise ratio, strong resolving power, large depth of exploration and good prospecting effect. ARCN introduced VTEM in 2013, and successfully applied to polymetallic mineral exploration in some provinces of China. Based on the measured data of VTEM in China, this paper studied the ATEM and aeromagnetic abnormal features of contact-type lead-zinc deposits, structural alteration gold deposits and volcanic massive sulfide-type copper-zinc ores. We hope it can work to provide method reference for the same type ore deposits in China
引文
Alexander Prikhodko.2010. PhD, P.Geo EM TIME CONSTANT(TAU)ANALYSIS[R].Geotech Ltd.
Annan, P. 2013. Airborne EM-Lessons learnt and future opportunities[R]. 13th SAGA Biennial Conference and Exhibition, and 6TH International AEM Conference and Exhibition, Conference proceedings, 36-37.
Geotech Ltd. 2011.Alexander Prikhodko, PhD, P.Geo TEM RESISTIVITY DEPTH IMAGING(RDI)[R].
Geotech Ltd.2014.Airborne geophysical Surveys,inner data[R].
Maxwell A. Meju. 1998. Short Note:A simple method of transient electromagnetic data analysis[J].Geophysics, 63:405-410.
Vall6e M A, Smith, et al. 2011.Metalliferous mining geophysics-State of the art after a decade in the new millennium[J]. Geophysics, 76:W31-W50.
YanLuo, Lin Zhu, Zhao Zhao, et al. 2015. Application prospects of VTEM helicopter time-domain electromagnetics in China[c]//International Workshop on Gravity, Electrical&Magnetic Methods and their Applications, Chengdu, China, 285-288.
付明禄,许强奋,曾阳,等.2010.哈密黄土坡铜锌矿地质特征及找矿方法探讨[J].新疆地质,28(3):260-266.
江民忠,李怀渊,骆燕,等.2016.黑龙江省大兴安岭成矿带航电方法试验成果报告[R].石家庄:核工业航测遥感中心.
静恩杰,李志聃.1995.瞬变电磁法基本理论[J].中国煤田地质,7(2):83-87.
雷延军,韩德义,辛军强,等.2014.青海东昆中岩浆弧带侵人岩体中金矿床地质特征及成因探讨[J].青海大学学报(自然科学版),32(6):57-62.
李厚民,沈远超,胡正国,等.2001.青海东昆仑五龙沟金矿床成矿条件及成矿机理[J].地质与勘探,37(1):65-69.
李怀渊,张景训,江民忠,等.2015.航空时间域电磁法测量系统VTEM应用效果分析[J].地质论评,61(增刊):04.
梁盛军,张力卡,曹学峰,等.2014.时间域航空电磁法研究进展综述[J].地质与勘探,50(4):0735-0740.
刘红香.2010.瞬变电磁法及其深部找矿中的应用[J].矿产勘查,6,1(增刊):99-101.
刘振锋,张泽阳,沈廷硕,等.青海省都兰县哈西哇矿区Ⅰ矿带详査及外围普查2013年总结及2014年设计[R].西宁:青海省有色地质矿产勘查局八队,2014.
骆燕,江民忠,宁媛丽,等.2016.不同类型低阻异常航电时间常数的特征分析[J].物探与化探,40(5):991-997.
骆燕,曾阳,石岩,等.2014.航空瞬变电磁法在火山岩型块状硫化物矿区的试验[J].物探与化探,38(4):840-845.
吕长生,杨昆林,褚向飞,等.2010.黑龙江省大兴安岭呼中区下嘎来奥伊河上游铅锌多金属矿Ⅰ号、Ⅳ号矿带详查报告[R].哈尔滨:黑龙江省地球物理勘察院.
牛之琏.2000.时间域电磁法原理[M].长沙:中南工业大学出版社.
孙栋华,王培建,李怀渊,等.2015.青海省石头坑德-五龙沟地区1:1万航空电磁法测量成果报告[R].石家庄:核工业航测遥感中心.
新疆维吾尔族自治区有色地质勘查局地球物理探矿队.2010.新疆哈密黄土坡铜铅锌矿简介[R].
薛国强,李貅,底青云.2007.瞬变电磁法理论与应用研究进展[J].地球物理学进展,22(4):1195-1200.
杨昆林,褚向飞,岳竞峰,等.2015.黑龙江省大兴安岭呼中区下嘎来奥伊河上游铅锌多金属矿Ⅰ号、Ⅱ号、Ⅳ号矿带勘探报告[R].哈尔滨:黑龙江省地球物理勘察院.
殷长春,张博,刘云鹤,等.2015.航空电磁勘查技术发展现状及展望[J].地球物理学报,58(8):2637-2653.
袁桂琴,熊盛青,孟庆敏,等.2011.地球物理勘查技术与应用研究[J].地质学报,85(11):1744-1805.
郑军.2012.大兴安岭呼中地区铅锌矿地质、地球物理、地球化学特征及找矿标志[D].长春:吉林大学.
周俊杰.2011.航空瞬变电磁法2.5维正演模拟研究[D].长沙:中南大学.
Annan, P. 2013. Airborne EM-Lessons learnt and future opportunities[R]. 13th SAGA Biennial Conference and Exhibition, and 6TH International AEM Conference and Exhibition, Conference proceedings, 36-37.
Geotech Ltd. 2011.Alexander Prikhodko, PhD, P.Geo TEM RESISTIVITY DEPTH IMAGING(RDI)[R].
Geotech Ltd.2014.Airborne geophysical Surveys,inner data[R].
Maxwell A. Meju. 1998. Short Note:A simple method of transient electromagnetic data analysis[J].Geophysics, 63:405-410.
Vall6e M A, Smith, et al. 2011.Metalliferous mining geophysics-State of the art after a decade in the new millennium[J]. Geophysics, 76:W31-W50.
YanLuo, Lin Zhu, Zhao Zhao, et al. 2015. Application prospects of VTEM helicopter time-domain electromagnetics in China[c]//International Workshop on Gravity, Electrical&Magnetic Methods and their Applications, Chengdu, China, 285-288.
付明禄,许强奋,曾阳,等.2010.哈密黄土坡铜锌矿地质特征及找矿方法探讨[J].新疆地质,28(3):260-266.
江民忠,李怀渊,骆燕,等.2016.黑龙江省大兴安岭成矿带航电方法试验成果报告[R].石家庄:核工业航测遥感中心.
静恩杰,李志聃.1995.瞬变电磁法基本理论[J].中国煤田地质,7(2):83-87.
雷延军,韩德义,辛军强,等.2014.青海东昆中岩浆弧带侵人岩体中金矿床地质特征及成因探讨[J].青海大学学报(自然科学版),32(6):57-62.
李厚民,沈远超,胡正国,等.2001.青海东昆仑五龙沟金矿床成矿条件及成矿机理[J].地质与勘探,37(1):65-69.
李怀渊,张景训,江民忠,等.2015.航空时间域电磁法测量系统VTEM应用效果分析[J].地质论评,61(增刊):04.
梁盛军,张力卡,曹学峰,等.2014.时间域航空电磁法研究进展综述[J].地质与勘探,50(4):0735-0740.
刘红香.2010.瞬变电磁法及其深部找矿中的应用[J].矿产勘查,6,1(增刊):99-101.
刘振锋,张泽阳,沈廷硕,等.青海省都兰县哈西哇矿区Ⅰ矿带详査及外围普查2013年总结及2014年设计[R].西宁:青海省有色地质矿产勘查局八队,2014.
骆燕,江民忠,宁媛丽,等.2016.不同类型低阻异常航电时间常数的特征分析[J].物探与化探,40(5):991-997.
骆燕,曾阳,石岩,等.2014.航空瞬变电磁法在火山岩型块状硫化物矿区的试验[J].物探与化探,38(4):840-845.
吕长生,杨昆林,褚向飞,等.2010.黑龙江省大兴安岭呼中区下嘎来奥伊河上游铅锌多金属矿Ⅰ号、Ⅳ号矿带详查报告[R].哈尔滨:黑龙江省地球物理勘察院.
牛之琏.2000.时间域电磁法原理[M].长沙:中南工业大学出版社.
孙栋华,王培建,李怀渊,等.2015.青海省石头坑德-五龙沟地区1:1万航空电磁法测量成果报告[R].石家庄:核工业航测遥感中心.
新疆维吾尔族自治区有色地质勘查局地球物理探矿队.2010.新疆哈密黄土坡铜铅锌矿简介[R].
薛国强,李貅,底青云.2007.瞬变电磁法理论与应用研究进展[J].地球物理学进展,22(4):1195-1200.
杨昆林,褚向飞,岳竞峰,等.2015.黑龙江省大兴安岭呼中区下嘎来奥伊河上游铅锌多金属矿Ⅰ号、Ⅱ号、Ⅳ号矿带勘探报告[R].哈尔滨:黑龙江省地球物理勘察院.
殷长春,张博,刘云鹤,等.2015.航空电磁勘查技术发展现状及展望[J].地球物理学报,58(8):2637-2653.
袁桂琴,熊盛青,孟庆敏,等.2011.地球物理勘查技术与应用研究[J].地质学报,85(11):1744-1805.
郑军.2012.大兴安岭呼中地区铅锌矿地质、地球物理、地球化学特征及找矿标志[D].长春:吉林大学.
周俊杰.2011.航空瞬变电磁法2.5维正演模拟研究[D].长沙:中南大学.