中国大陆东部新构造期北西向断裂带的初步探讨
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摘要
前人对中国大陆东部新构造期 (N—Q)活动的北东向断裂 (带 )已有很多研究。笔者根据地震构造、新构造和火山活动等资料并结合Pn波速结构研究结果 ,分析了该区新构造期的北西向活动断裂 ,初步得出 :北西向断裂具有成带性 ,可分 7条北西向断裂带 ;它们有鲜明的新生性 ;均为地壳构造带 ;与北东向断裂带呈共轭关系 ,是在先存构造基础上于新构造应力场作用下正在发育的一套地壳共轭剪切破裂系统。
There have been numerous studies on the NE trending faults (zones) of the eastern Chinese continent since neotectonic time(N—Q). We have an analysis of the NW trending active faults of this region since neotectonic time on the basis of data of seismotectonics, neotectonics, volcanoes and the distribution of P_n Velocity. It is suggested that these faults are characterized by zone shape. They can be subdivided into seven active fault zones of NW strike. They have a clear nascent feature and are attributed to crustal structural zones. The NW and NE trending fault zones shape a conjugate pattern in this region, which represents a developing conjugate shear fracture system in the crust under the stress field since neotectonic time.
There have been numerous studies on the NE trending faults (zones) of the eastern Chinese continent since neotectonic time(N—Q). We have an analysis of the NW trending active faults of this region since neotectonic time on the basis of data of seismotectonics, neotectonics, volcanoes and the distribution of P_n Velocity. It is suggested that these faults are characterized by zone shape. They can be subdivided into seven active fault zones of NW strike. They have a clear nascent feature and are attributed to crustal structural zones. The NW and NE trending fault zones shape a conjugate pattern in this region, which represents a developing conjugate shear fracture system in the crust under the stress field since neotectonic time.
引文
沈修志,孙岩,刘寿和.中国东部地区北西向压性构造.第二届全国构造地质学术会议论文摘要汇编(上册).1978.
任纪舜,张正坤,姜春发,等.中国东部北西向断裂.第二届全国构造地质学术会议论文摘要汇编(下册).1978.
①汪素云,裴顺平,许忠淮.中国大陆Pn波速分布图.2001.
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[14] MINSTERJB ,JORDANTH .Present dayplatemotions[J].JGR ,1978,83:53315354.
[15] ACHACHEJ ,COURTILLOTV ,ZHOUY .PaleographicandtectonicofsouthernXizangsincemiddleCretaceoustime:Newpaleomagneticdateandsynthesis[J].JGR ,1984,89:1031110341.
[16] XUJie,GAOZhanwu,SONGChangqing,etal.StructuralcharacteristicsoftheTaihangshanPiedmontfaultzone[J].Sci entiaGeologicaSinica,2001,10(1):5169.
[17] GAOZhanwu,XUJie,SONGChangqing,etal.StructuralcharactersoftheCangdongfaultinNorthChina[J].SeismologyandGeology,2000,22(4):395404(inChinese). [高战武,徐杰,宋长青,等.华北沧东断裂的构造特征[J].地震地质,2000,22(4):125133.]
[18] XUJie,NIULuanfang,WANGChunhua,etal.TangshanHejianCixiannewly generatedseismotect
任纪舜,张正坤,姜春发,等.中国东部北西向断裂.第二届全国构造地质学术会议论文摘要汇编(下册).1978.
①汪素云,裴顺平,许忠淮.中国大陆Pn波速分布图.2001.
[1] SHAOYunhui.OnNWtrendingtectonicsofeasternChinaanditstheoreticalimplications[J].BulletinofChineseAcademyofGeologicalSciences,1980(1)(inChinese). [邵云惠.试论我国东部北西向构造及其理论意义[J].中国地质科学院报(562大队分刊),1980(1).]
[2] LIZuwu.TheNNW NWtrendingtectonicsysteminEasternChina[J].JournalofSeismologicalResearch,1983,6(3):339348(inChinese). [李祖武.中国东部北北西—北西向构造体系的基本特征[J].地震研究,1983,6(3):339348.]
[3] LIZuwu.ActivityandstressfieldoftheNNW NWtrendingtectonicsystemintheeasternPartofChina[J].JournalofSeis mologicalResearch,1983,6(4):635650(inChinese). [李祖武.中国东部北北西—北西向构造系的活动性及其应力场[J].地震研究,1983,6(4):635650.]
[4] XIAONansen,WUChunyan,YINShuren,etal.AnalysisofNeotectonicsandItsApplicationstoExplorationofUnder groundWater[M].Beijing:GeologicalPublishingHouse,1986(inChinese). [肖楠森,吴春寅,尹树仁,等.新构造分析及其地下水勘探中的作用[M ].北京:地质出版社,1986.]
[5] MAXingyuan.InstructionforlithosphericDynamicAtlasofChina(1∶4000,000)[M ].Beijing:GeologicalPublishingHouse,1987(inChinese). [马杏垣主编.1∶400万中国及邻近海域岩石圈动力学图及说明书[M ].北京:地质出版社,1987.]
[6] FENGXijie.FaultingsysteminNW NNWdirectionsandMacroseisminChina’scontinent[J].JournalofXi’anCollegeofGeology,10(3):4754(inChinese). [冯希杰.中国大陆北西—北北西向断裂系统与强震[J].西安地质学院报,10(3):4954.]
[7] XUJie,LIUGuodong,HANZhujun,etal.OntheNWWtrendingNorthChina-EastSeaCenozoicriftbasinsystemofeasternChinesecontinent[A].InstituteofGeology,StateSeis mologicalBureau.Present dayGeodynamicsResearchandItsApplications[M ].Beijing:SeismologicalPress,1994.287293(inChinese). [徐杰,刘国栋,韩竹均,等.关于我国东部大陆北西西向华北—东海新生代裂陷盆地系的刍议[A].国家地震局地质研究所.现今地球动力学研究及其应用[M ].北京:地震出版社,1994.287293.]
[8] XUJie,WANGRuobai,WANGChuhua,etal.JiexiuXinxi angLiyangNorthwesttrendingnewly generatedseismotectonicZoneinthesoutheastareaofNorthChina[J].SeismologyandGeology,1997,19(2):125133(inChinese). [徐杰,王若柏,王春华,等.华北东南部介休—新乡—溧阳北西向新生地震构造带[J].地震地质,1997,19(2):125133.]
[9] XUJie,SONGChangqing,CHUQuanzhi.PreliminarystudyoftheseismotectoniccharactersoftheZhangjiakouPenglaifaultzone[J].SeismologyandGeology,1998,20(2):146154(inChinese). [徐杰,宋长青,楚全芝.张家口—蓬莱断裂带地震构造特征的初步探讨[J].地震地质,1998,20(2):146154.]
[10] XuJie,GAOZhanwu,SONGChangqing.NewlygeneratedseismotectoniczonesinNorthChinaanditsregionalseismotec tonicframework[J].ScientiaGeologicaSinica,2001,10(3):159168.
[11] MAZongjing,WANGQianying,XUJie,etal.AcomparativestudyonthecrosswisetectonicsonthebothsidesofTaiwanStrait[J].ScienceinChina(SeriesD),2002,32(6):111(inChinese). [马宗晋,王乾盈,徐杰,等.台湾海峡两岸横向构造的对比研究[J].中国科学(D),2002,32(6):111.]
[12] SONGChuanzhong.Thenewunderstandingofcrustaldeforma tioninEastAsia[A ].29thInternationalGeologicalCongress.Kyoto,Japan,1992.
[13] DINGGuoyu,LIYongshan.Seismicityandtherecentfractur ingpatternoftheEarthCrustinChina[J].ActaGeologicaSinica,1979,1:2234(inChinese). [丁国瑜,李永善.我国地震活动与地壳现代破裂网络[J].地质学报,1979,1:2234.]
[14] MINSTERJB ,JORDANTH .Present dayplatemotions[J].JGR ,1978,83:53315354.
[15] ACHACHEJ ,COURTILLOTV ,ZHOUY .PaleographicandtectonicofsouthernXizangsincemiddleCretaceoustime:Newpaleomagneticdateandsynthesis[J].JGR ,1984,89:1031110341.
[16] XUJie,GAOZhanwu,SONGChangqing,etal.StructuralcharacteristicsoftheTaihangshanPiedmontfaultzone[J].Sci entiaGeologicaSinica,2001,10(1):5169.
[17] GAOZhanwu,XUJie,SONGChangqing,etal.StructuralcharactersoftheCangdongfaultinNorthChina[J].SeismologyandGeology,2000,22(4):395404(inChinese). [高战武,徐杰,宋长青,等.华北沧东断裂的构造特征[J].地震地质,2000,22(4):125133.]
[18] XUJie,NIULuanfang,WANGChunhua,etal.TangshanHejianCixiannewly generatedseismotect
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