基于航磁资料的大兴安岭南部区域成矿构造填图尝试
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摘要
大兴安岭地区是中国重要的成矿区带之一,具备大规模成矿的条件和找矿潜力。对大兴安岭地区的大型断裂、次级断裂及基底构造系统深入研究是揭示控制该地区构造-岩浆活动和成矿作用的重要内容。对大兴安岭南部的航磁数据进行处理和解释,查明了研究区北东向、东西向、北北东向和北西向深大断裂为主的深部基底构造特征,圈定了火山机构分布位置,分析了大兴安岭南部区域构造特征,揭示了反映岩浆岩活动的线性或面状正磁异常和磁异常梯级带,探讨了研究区金属成矿的有利区带。为大兴安岭南部地区的区域地质、构造特征三维地质填图、找矿远景区的圈定提供了基础性信息。
The Da Hinggan Mountains is one of the very important metallogenic belts in China in that it has the condition of largescale mineralization and prospecting potential. The thorough study of the large faults, sub-faults and basement structure system of southern Da Hinggan Mountains is an important step for probing into the control of the tectono-magmatic rocks and mineralization in this area. In this paper the authors conducted the processing and interpretation of the aeromagnetic data obtained from southern Da Hinggan Mountains. The authors found the deep great faults in NE, EW, NNE and NW directions, which indicate the deep basement structure characteristics of this area. The authors ascertained the locations of volcanic mechanisms, and analyzed the regional geological-structural characteristics of the Da Hinggan Mountains. The authors revealed the positive magnetic anomalies and anomaly gradient belts distributed in linear and plane shapes, which indicate the activities of magmatic rocks. The favorable areas of metallic mineralization were also investigated. This study provides some basic information for the further research on regional geology, structural characteristics and mineral resources prospecting in southern Da Hinggan Mountains.
The Da Hinggan Mountains is one of the very important metallogenic belts in China in that it has the condition of largescale mineralization and prospecting potential. The thorough study of the large faults, sub-faults and basement structure system of southern Da Hinggan Mountains is an important step for probing into the control of the tectono-magmatic rocks and mineralization in this area. In this paper the authors conducted the processing and interpretation of the aeromagnetic data obtained from southern Da Hinggan Mountains. The authors found the deep great faults in NE, EW, NNE and NW directions, which indicate the deep basement structure characteristics of this area. The authors ascertained the locations of volcanic mechanisms, and analyzed the regional geological-structural characteristics of the Da Hinggan Mountains. The authors revealed the positive magnetic anomalies and anomaly gradient belts distributed in linear and plane shapes, which indicate the activities of magmatic rocks. The favorable areas of metallic mineralization were also investigated. This study provides some basic information for the further research on regional geology, structural characteristics and mineral resources prospecting in southern Da Hinggan Mountains.
引文
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[2]翟裕生,邓军,彭润民.中国区域成矿若干问题探讨[J].矿床地质,1999,18(4):323-332.
[3]张义,聂凤军,江思宏,等.中蒙边境欧玉陶勒盖大型铜-金矿床的发现及对找矿勘查工作的启示[J].地质通报,2003,22(9):708-712.
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[6]刘光鼎,涂光炽,刘东生,等.大兴安岭中南段——一个重要的有色金属资源基地[J].中国科学院院刊,2003,5:324-325.
[7]刘建明,张锐,张庆洲.大兴安岭地区的区域成矿特征[J].地学前缘,2004,11(1):269-277.
[8]聂凤军,江思宏,张义,等.中蒙边境及邻区斑岩型铜矿床地质特征及成因[J].矿床地质,2004,23(2):176-189.
[9]聂凤军,温银维,赵元艺,等.内蒙古白音查干银多金属矿化区地质特征及找矿方向[J].矿床地质,2007,26(2):213-220.
[10]郑翻身,蔡红军,张振法.内蒙古拜仁达坝维拉斯托超大型银铅锌矿的发现及找矿意义[J].物探与化探,2006,30(1):13-20,25.
[11]江和中,刘国范,刘伟芳.内蒙古吉林宝力格银矿床地质特征及找矿标志[J].华南地质与矿产,2007,4:9-13.
[12]匡永生,郑广瑞,卢民杰,等.内蒙古赤峰市双尖子山银多金属矿床的基本特征[J].矿床地质,2014,33(4):847-856.
[13]江思宏,聂凤军,刘翼飞,等.内蒙古拜仁达坝及维拉斯托银多金属矿床的硫和铅同位素研究[J].矿床地质,2010,28(1):101-112.
[14]江思宏,聂凤军,白大明,等.内蒙古白音诺尔铅锌矿床印支期成矿的年代学证据[J].矿床地质,2011,30(5):787-798.
[15]邵济安,牟保磊,何国琦,等.华北北部在古亚洲域与太平洋域构造叠加过程中的地质作用[J].中国科学,1997,27(5):390-394.
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[18]邵积东.内蒙古地质构造单元划分及存在的有关问题内蒙[J].西部资源,2016,3:84-87,150.
[19]张喜周,张振邦.内蒙大兴安岭南段地质构造与成矿[J].矿产与地质,2003,17:298-301.
[20]邵积东,王守光,赵文涛,等.大兴安岭地区成矿地质特征及找矿前景分析[J].地质与资源,2007,6(4):252-262.
[21]邵积东,陶继雄,李四娃,等.大兴安岭成矿带找矿工作新进展[J].地质通报,2009,28(7):955-962.
[22]邵积东,谭强,王惠,等.大兴安岭地区中生代地层特征及侏罗—白垩纪界线的讨论[J].地质与资源,2011,20(1):4-11.
[23]牛树银,郭利军,王宝德,等.大兴安岭中南段区域构建演化及其成矿作用[J].西部资源,2005,1:44-46.
[24]任继舜,王作勋,陈炳蔚,等.1∶500万中国及邻区大地构造图[M].北京:中国地质图制印厂,1997.
[25]毛景文,张作衡,余金杰,等.华北及邻区中生代大规模成矿的地球动力学背景:从金属矿床年龄精测得到启示[J].中国科学(D辑),2003,33(4):289-300.
[26]曾庆栋,刘建明,张作伦,等.华北克拉通北缘鸡冠山斑岩钼矿床成矿年代及印支期成矿事件[J].岩石学报,2009,25(2):393-398.
[27]张德全,雷蕴芬,罗太阳,等.内蒙古白音诺铅锌矿床地质特征及成矿作用[J].矿床地质,1991,10(3):204-216.
[28]吴冠斌,刘建明,曾庆栋,等.内蒙古大兴安岭双尖子山铅锌银矿床成矿年龄[J].矿物学报,2013,S2:619.
[29]常勇,赖勇.内蒙古银都银铅锌多金属矿床成矿流体特征及成矿年代学研究[J].北京大学学报(自然科学版),2010,46(4):581-593.
[30]任耀武.大兴安岭中南段铜多金属矿床的重要矿源层[J].华北地质矿产杂志,1994,9(3):313-316.
[31]潘军,段国正,郝立波,等.大兴安岭银矿床地质地球化学特征及成矿规律[J].黄金,2000,21:1-5.
[32]钟日晨,杨永飞,石英霞,等.内蒙古拜仁达坝银多金属矿区矿石矿物特征及矿床成因[J].中国地质,2008,35(6):1274-1285.
[33]Hinze W Frese R V.Magntics in geoexploration[J].Proc.India Acad.Sci.(Earth Planet Sci.),1990,99(4):515-547.
[34]毛骞,孙世华,张福勤,王辉.大兴安岭南端花岗岩磁化率及其岩石学意义[J].地球物理学进展,2000,15(3):54-60.
[35]Liu Y X.Evaluation and extration of weak gravity and magnetic anomalies[J].Applied Geophysics,2007,4(4):288-293.
[36]张鹏,王大勇,支海妮.航磁调查中追踪隐伏磁性体的方法[J].物探与化探,2014,38(1):1-9.
[37]Ranganai R T,Whaler A A,Ebinger C J.Aeromagnetic interpretation in the south central Zimbabwe Craton:(reappraisal of)crustal structure and tectonic implications[J].International Journal of Earth Sciences(Geol Rundsch),2015:1-27.
[38]Kadasi A N.Interpretation of aeromagnetic data in terms of surface and subsurface geologic structures,southwestern Yemen[J].Arab.J.Geosci.,2015,8:1163-1179.
[39]Zhu X S,Lu M J.Regional metallogenic structure based on aeromagnetic data in northern Chile[J].Applied Geophysics,2016,13(4):721-735.
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