1949年新疆库车7.4/级地震的地震构造条件
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摘要
前人研究认为 ,库车 194 9年 7 级地震主要与天山南麓活动构造带的NEE向秋立塔格断裂有关。最近笔者根据深地震地壳测深、石油地质及活断裂等研究的新成果 ,对这次地震的构造条件进行了较深入的分析。塔里木陆块向天山俯冲 ,天山上地壳被挤压块断隆升并侧向推覆扩展 ,于天山南缘形成库车盆地及由秋立塔格等一系列逆断裂组成的逆断 -褶皱系 ,这是发育于沉积盖层的薄皮构造。NE向库车 -依西 1井断裂是库车盆地构造中重要的传递断裂 ,位于NE向的乌鲁木齐 -库车 -柯坪构造带中。有关 7 级地震的地震学研究结果与秋立塔格断裂完全不符 ,而与库车 -依西 1井断裂基本一致
Previous studies suggested that the Kuqa, Xinjiang M 71/4 earthquake of 1949 is associated with the NEE trending Qiulitage Fault of the active tectonic zone at the southern foot of the Tianshan Mountain. Recently we have made a more detailed analysis of the seismotectonic setting of this event based on new data and results of crustal seismic sounding, petroleum geology, and research of active faults. Our work indicates that the underthrusting of the Tarim block beneath the Tianshan, as well as faulted block uplift and lateral overthrusting and spreading of the upper crust of Tianshan have given rise to the development of the Kuqa basin and thrust fold system along the southern margin of the Tianshan Mountain. All these are thin skinned structures developed in the sedimentary cover. The NE trending Kuqa Yixi No.1 Well Fault is an important transfer fault in the Kuqa basin, which is located in the NE trending Urumqi Kuqa Keping tectonic zone. The results of seismological research on the M 71/4 earthquake indicate that the earthquake bears no relation to the Qiulitage Fault, but is related to the Kuqa Yixi No.1 Well Fault.
Previous studies suggested that the Kuqa, Xinjiang M 71/4 earthquake of 1949 is associated with the NEE trending Qiulitage Fault of the active tectonic zone at the southern foot of the Tianshan Mountain. Recently we have made a more detailed analysis of the seismotectonic setting of this event based on new data and results of crustal seismic sounding, petroleum geology, and research of active faults. Our work indicates that the underthrusting of the Tarim block beneath the Tianshan, as well as faulted block uplift and lateral overthrusting and spreading of the upper crust of Tianshan have given rise to the development of the Kuqa basin and thrust fold system along the southern margin of the Tianshan Mountain. All these are thin skinned structures developed in the sedimentary cover. The NE trending Kuqa Yixi No.1 Well Fault is an important transfer fault in the Kuqa basin, which is located in the NE trending Urumqi Kuqa Keping tectonic zone. The results of seismological research on the M 71/4 earthquake indicate that the earthquake bears no relation to the Qiulitage Fault, but is related to the Kuqa Yixi No.1 Well Fault.
引文
①高祥林等,1999,中国大陆中新生代构造变形格局与重力场分布特征的关系。
①②同451页
①。顾家裕等,1999,库车前陆盆地演化与油气资源评价
①②③周本刚等,2001,克拉2气田区块及克2-轮南输气管道地震安全性评价。同452页
①。张家声等,1999,中国大陆古板块划分和盆地结晶基底的航磁地质构造解释。
①同452页①
①②徐杰等,1999,中国主要含油气盆地区地壳结构构造研究。
同452页①
①②同453页
③。新疆维吾尔自治区地震局,1974,库车地震宏观调查简报
柏美祥,王煜.1988.新疆地震断层和地震裂缝〔A〕.见:新疆维吾尔族自治区地震局编.中国地震断层研究.乌鲁木齐:新疆人民出版社.88—93.
BAIMei xiang,WANGYu.1986.SeismicfaultsandfissuresinXinjiang〔A〕.In:SeismologicalBureauofXinjiangUygurAutonomousRegion(ed).ResearchofSeismicFaultinChina.People’sPublishingHouseofXinjiang,Urumqi.88—93(inChinese).
邓起东,冯先岳,张培震,等.2000.天山活动构造〔M〕.北京:地震出版社.
DENGQi dong,FENGXian yue,ZHANGPei zhen,etal.2000.ActiveTectonicsoftheChineseTianshanMoun tains〔M〕.SeismologicalPress,Beijing(inChinese).
冯先岳.1985.论新疆地震地质特征〔J〕.地震地质,7(2):35—44.
FENGXian yue.1985.SeismogeologicalcharacteristicsoftheXinjiangarea〔J〕.SeismologyandGeology,7(2):35—44(inChinese).
高锐,肖序常,高弘,等.2002.西昆仑-塔里木-天山岩石圈深地震探测综述〔J〕.地质通报,21(1):11—18.
GAORui,XIAOXu chang,GAOHong,etal.2002.SummaryofdeepseismicprobingofthelithosphericstructureacrossthewestKunlunTarimTianShan〔J〕.GeologicalBulletinofChina,21(1):11—18(inChinese).
戈树谟.1982.天山南缘主要活动断裂及其现今活动特点〔A〕.见:中国地震学会地震地质专业委员会编.中国活动断裂.北京:地震出版社.226—230.
GEShu mo.1982.ThemainfaultsonthesouthernedgeoftheTianshanMountainanditsrecentactivity〔A〕.In:CommissionofSeismogeology,SeimologicalAssociationofChina(ed).ActiveFaultsinChina.SeismologicalPress,Beijing.226—230(inChinese).
胡方秋,胡军.1991.新疆维吾尔族自治区岩石圈动力学〔A〕.见:丁国瑜主编.中国岩石圈动力学概论.北京:地震出版社.471—481.
HUFang qiu,HUJun.1991.LithosphericDynamicsoftheXinjiangUygurAutonomousRegion〔A〕.In:DINGGuo yu(chiefed).BriefIntroductiontotheLithosphericDynamicsofChina.SeismologicalPress,Beijing.471—481(inChinese).
贾承造主编.1997.中国塔里木盆地构造特征与油气〔M〕.北京:石油工业出版社.
JIACheng zao(chiefed).1997.TectonicCharacteristicsandOilandGasAccumulationinTarimBasin,China〔M〕.PublishingHouseofPetroleumIndustry,Beijing(inChinese).
汤良杰.1996.塔里木盆地演化和构造样式〔M〕.北京:地质出版社.
TANGLiang jie.1996.TectonicEvolutionandStructuralStylesoftheTarimBasin,NorthwestChina〔M〕.Geo logicalPublishingHouse,Beijing(inChinese).
吴裕文,范福田,柏美祥,等.1982.秋立塔格-北轮台活动断裂〔A〕.见:中国地震学会地震地质专业委员会编.中国活动断裂.北京:地震出版社.231—235.
WUYu wen,FANFu tian,BAIMei xiang,etal.1982.TheQiulitageBeiluntaiactivefaultzone〔A〕.In:CommissionofSeismogeology,SeimologicalAssociationofChina(ed).ActiveFaultsinChina.SeismologicalPress,Beijing.231—235(inChinese).
肖序常,汤跃庆,冯益民,等.1992.新疆北部及其邻区大地构造〔M〕.北京:地质出版社.
XIAOXu chang,TANGYao qing,FENGYi min,etal.1992.TectonicEvolutionofNorthernXinjianganditsAdjacentRegions〔M〕.GeologicalPublishingHouse,Beijing(inChinese).
新疆维吾尔自治区地质矿产局.1993.新疆地质志〔Z〕.北京:地质出版社
BureauofGeologyandMineralResources,XinjiangUygurAutonomousRegion.1993.RegionalGeologyofXinjiang〔Z〕.GeologocalPublishingHouse,Beijing(inChinese).
杨章.1990.天山地区地震地质概况〔J〕.内陆地震,4(4):332—344.
YANGZhang.1990.Seismo geologicbackgroundoftheTianshanregion〔J〕.InlandEarthquake,4(4):332—344(inChinese).
张德全,张燕平,张鹏,等.2001.新疆地区板内近期运动初探〔A〕.见:马宗晋等主编.青藏高原岩石圈现今变动与动力学.北京:地震出版社.63—74.
ZHANGDe quan,ZHANGYan ping,ZHANGPeng,etal.2001.ThepreliminarystudyontherecentblocksmovementinXinjiangPlate〔A〕.In:MAZong jin,WANGYi peng,ZHANGYan ping(chiefeds).StudyontheRecentDeformationandDynamicsoftheLithosphereofQinghaiXizangPlateau〔A〕.SeismologicalPress,Beijing.63—74(inChinese).
张良臣,吴乃之.1985.天山地质构造及演化史〔J〕.新疆地质,3(3):1—14.
ZHANGLiang chen,WUNai zhi.1985.GeologicstructuresoftheTianshanandtheirevolutionhistory〔J〕.Geolo gyofXinjiang,3(3):1—
①②同451页
①。顾家裕等,1999,库车前陆盆地演化与油气资源评价
①②③周本刚等,2001,克拉2气田区块及克2-轮南输气管道地震安全性评价。同452页
①。张家声等,1999,中国大陆古板块划分和盆地结晶基底的航磁地质构造解释。
①同452页①
①②徐杰等,1999,中国主要含油气盆地区地壳结构构造研究。
同452页①
①②同453页
③。新疆维吾尔自治区地震局,1974,库车地震宏观调查简报
柏美祥,王煜.1988.新疆地震断层和地震裂缝〔A〕.见:新疆维吾尔族自治区地震局编.中国地震断层研究.乌鲁木齐:新疆人民出版社.88—93.
BAIMei xiang,WANGYu.1986.SeismicfaultsandfissuresinXinjiang〔A〕.In:SeismologicalBureauofXinjiangUygurAutonomousRegion(ed).ResearchofSeismicFaultinChina.People’sPublishingHouseofXinjiang,Urumqi.88—93(inChinese).
邓起东,冯先岳,张培震,等.2000.天山活动构造〔M〕.北京:地震出版社.
DENGQi dong,FENGXian yue,ZHANGPei zhen,etal.2000.ActiveTectonicsoftheChineseTianshanMoun tains〔M〕.SeismologicalPress,Beijing(inChinese).
冯先岳.1985.论新疆地震地质特征〔J〕.地震地质,7(2):35—44.
FENGXian yue.1985.SeismogeologicalcharacteristicsoftheXinjiangarea〔J〕.SeismologyandGeology,7(2):35—44(inChinese).
高锐,肖序常,高弘,等.2002.西昆仑-塔里木-天山岩石圈深地震探测综述〔J〕.地质通报,21(1):11—18.
GAORui,XIAOXu chang,GAOHong,etal.2002.SummaryofdeepseismicprobingofthelithosphericstructureacrossthewestKunlunTarimTianShan〔J〕.GeologicalBulletinofChina,21(1):11—18(inChinese).
戈树谟.1982.天山南缘主要活动断裂及其现今活动特点〔A〕.见:中国地震学会地震地质专业委员会编.中国活动断裂.北京:地震出版社.226—230.
GEShu mo.1982.ThemainfaultsonthesouthernedgeoftheTianshanMountainanditsrecentactivity〔A〕.In:CommissionofSeismogeology,SeimologicalAssociationofChina(ed).ActiveFaultsinChina.SeismologicalPress,Beijing.226—230(inChinese).
胡方秋,胡军.1991.新疆维吾尔族自治区岩石圈动力学〔A〕.见:丁国瑜主编.中国岩石圈动力学概论.北京:地震出版社.471—481.
HUFang qiu,HUJun.1991.LithosphericDynamicsoftheXinjiangUygurAutonomousRegion〔A〕.In:DINGGuo yu(chiefed).BriefIntroductiontotheLithosphericDynamicsofChina.SeismologicalPress,Beijing.471—481(inChinese).
贾承造主编.1997.中国塔里木盆地构造特征与油气〔M〕.北京:石油工业出版社.
JIACheng zao(chiefed).1997.TectonicCharacteristicsandOilandGasAccumulationinTarimBasin,China〔M〕.PublishingHouseofPetroleumIndustry,Beijing(inChinese).
汤良杰.1996.塔里木盆地演化和构造样式〔M〕.北京:地质出版社.
TANGLiang jie.1996.TectonicEvolutionandStructuralStylesoftheTarimBasin,NorthwestChina〔M〕.Geo logicalPublishingHouse,Beijing(inChinese).
吴裕文,范福田,柏美祥,等.1982.秋立塔格-北轮台活动断裂〔A〕.见:中国地震学会地震地质专业委员会编.中国活动断裂.北京:地震出版社.231—235.
WUYu wen,FANFu tian,BAIMei xiang,etal.1982.TheQiulitageBeiluntaiactivefaultzone〔A〕.In:CommissionofSeismogeology,SeimologicalAssociationofChina(ed).ActiveFaultsinChina.SeismologicalPress,Beijing.231—235(inChinese).
肖序常,汤跃庆,冯益民,等.1992.新疆北部及其邻区大地构造〔M〕.北京:地质出版社.
XIAOXu chang,TANGYao qing,FENGYi min,etal.1992.TectonicEvolutionofNorthernXinjianganditsAdjacentRegions〔M〕.GeologicalPublishingHouse,Beijing(inChinese).
新疆维吾尔自治区地质矿产局.1993.新疆地质志〔Z〕.北京:地质出版社
BureauofGeologyandMineralResources,XinjiangUygurAutonomousRegion.1993.RegionalGeologyofXinjiang〔Z〕.GeologocalPublishingHouse,Beijing(inChinese).
杨章.1990.天山地区地震地质概况〔J〕.内陆地震,4(4):332—344.
YANGZhang.1990.Seismo geologicbackgroundoftheTianshanregion〔J〕.InlandEarthquake,4(4):332—344(inChinese).
张德全,张燕平,张鹏,等.2001.新疆地区板内近期运动初探〔A〕.见:马宗晋等主编.青藏高原岩石圈现今变动与动力学.北京:地震出版社.63—74.
ZHANGDe quan,ZHANGYan ping,ZHANGPeng,etal.2001.ThepreliminarystudyontherecentblocksmovementinXinjiangPlate〔A〕.In:MAZong jin,WANGYi peng,ZHANGYan ping(chiefeds).StudyontheRecentDeformationandDynamicsoftheLithosphereofQinghaiXizangPlateau〔A〕.SeismologicalPress,Beijing.63—74(inChinese).
张良臣,吴乃之.1985.天山地质构造及演化史〔J〕.新疆地质,3(3):1—14.
ZHANGLiang chen,WUNai zhi.1985.GeologicstructuresoftheTianshanandtheirevolutionhistory〔J〕.Geolo gyofXinjiang,3(3):1—
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