青藏高原北部活动地块内部的活断层定量资料
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摘要
文中定义了祁连山活动地块的边界,列表给出了近十几年来在青藏高原北部活动地块内部的活断层定量资料。其内容主要包括:活断层的编号、名称、产状、主要的地质地貌标志、活动年代、断层分段、断层滑动速率、古地震及其年代、地震破裂带的主要特征等。这些资料表明:青藏高原北部活动地块的8级大地震集中在它的边界活断层上,断层的滑动速率都在5~12mm/a左右;7级左右的地震发生在其内部规模较小的断层上,断层的滑动速率都在1~3mm/a左右;青藏高原北部活动地块内部的活断层,可以将该活动地块划分为几个次级地块,这些次级活动地块以变形为主,没有发生旋转;我们的结果支持青藏高原"连续变形"的假说。
This paper defines the boundaries of north Qinghai-Xizang plateau active tectonic block and offers quantitative information of active faults within the north Qinghai-Xizang plateau active tectonic block in the past dozen years. The information mainly include: the serial number,name,attitude of active fault,main geological geomorphic signs,activity age,fault segmentation,fault slip rate,paleo-earthquake and its date,and the major features of earthquake rupture zones and so on. These data indicate that great earthquakes with M≥8 concentrate on the boundary active faults of the north Qinghai-Xizang plateau active tectonic block,and the slip rate of the faults all reaches about 5～12mm/yr. Earthquakes of about M7 occurred on the smaller-scale active faults inside the north Qinghai-Xizang plateau active tectonic block. Generally,the slip rates of these active faults are 1～3mm/yr.The north Qinghai-Xizang plateau active tectonic block can be divided into several sub-blocks,and these active sub-blocks are dominated with deformation,and no rotation occurred. Our result supports the hypothesis of continuous deformation of Qinghai-Xizang plateau active tectonic block.
This paper defines the boundaries of north Qinghai-Xizang plateau active tectonic block and offers quantitative information of active faults within the north Qinghai-Xizang plateau active tectonic block in the past dozen years. The information mainly include: the serial number,name,attitude of active fault,main geological geomorphic signs,activity age,fault segmentation,fault slip rate,paleo-earthquake and its date,and the major features of earthquake rupture zones and so on. These data indicate that great earthquakes with M≥8 concentrate on the boundary active faults of the north Qinghai-Xizang plateau active tectonic block,and the slip rate of the faults all reaches about 5～12mm/yr. Earthquakes of about M7 occurred on the smaller-scale active faults inside the north Qinghai-Xizang plateau active tectonic block. Generally,the slip rates of these active faults are 1～3mm/yr.The north Qinghai-Xizang plateau active tectonic block can be divided into several sub-blocks,and these active sub-blocks are dominated with deformation,and no rotation occurred. Our result supports the hypothesis of continuous deformation of Qinghai-Xizang plateau active tectonic block.
引文
①中国地震局兰州地震研究所,2003,祁连山地区活动地块运动状态及其边界断裂系构造转换关系研究报告。
①国家地震局兰州地震研究所,1998,祁连山中东段重点监视防御区孕震活动特点的定量研究与地震危险性评价报告。
②中国地震局兰州地震研究所,2003,祁连山地区活动地块运动状态及其边界断裂系构造转换关系研究报告。
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甘卫军,刘百篪.2002.景泰-天祝断裂单元与多重特征地震的危险性概率评估[J].地震地质,24(1):45—58.GAN Wei-jun,LIU Bai-chi.2002.Probability of large earthquake recurrence along the Jingtai-Tianzhu active fault[J].Seismology and Geology,24(1):45—58(in Chinese).
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何文贵,刘百篪,袁道阳,等.2000b.冷龙岭活动断裂的滑动速率研究[J].西北地震学报,22(1):90—97.HE Wen-gui,LIU Bai-chi,YUAN Dao-yang,et al.2000b.Research on slip rates of the Lenglongling active fault zone[J].Northwestern Seismological Journal,22(1):90—97(in Chinese).
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吕太乙,万夫领,廖元模,等.1994.会宁-义岗活动断裂与1352年会宁7·0级地震[A].见:中国地震学会地震地质专业委员会编.中国活动断层研究.北京:地震出版社.42—47.L Tai-yi,WAN Fu-ling,LIAO Yuan-mo,et al.1994.The Huining-Yigan active fault and the1352M7·0Huiningearthquake[A].In:Committee on Seismogeology,the Seismological Society of China(ed).The Active Faults inChina.Seismological Press,Beijing.42—47(in Chinese).
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①国家地震局兰州地震研究所,1998,祁连山中东段重点监视防御区孕震活动特点的定量研究与地震危险性评价报告。
②中国地震局兰州地震研究所,2003,祁连山地区活动地块运动状态及其边界断裂系构造转换关系研究报告。
程绍平.1991.断错阶地水平位移量确定中的一个理论问题[A].见:国家地震局地质研究所编.活动断裂研究(1).北京:地震出版社.184—189.CHENG Shao-ping.1991.A theoretical problem in determining the lateral displacements for the faulted terraces[A].In:Institute of Geology,State Seismological Bureau(ed).Research on the Active Fault(1).Seismological Press,Beijing,184—189(in Chinese).
邓起东,张培震,冉勇康,等.2003.中国活动构造与地震[J].地学前缘,10(特刊):66—73.DENG Qi-dong,ZHANG Pei-zhen,RAN Yong-kang,et al.2003.Active tectonics and earthquake in China[J].EarthScience Frontiers,10(Suppl):66—73(in Chinese).
国家地震局地质研究所,宁夏回族自治区地震局.1990.海原活动断裂带[M].北京:地震出版社.Institute of Geology,State Seismological Bureau,Seismological Bureau of Ningxia Hui Autonomous Region.1990.Research on the Active Haiyuan Fault Zone[M].Seismological Press,Beijing(in Chinese).
国家地震局地质研究所,国家地震局兰州地震研究所.1993.祁连山-河西走廊活动断裂系[M].北京:地震出版社.Institute of Geology,State Seismological Bureau,Lanzhou Institute of Seismology,State Seismological Bureau.1993.TheQilian Moutain-Hexi Corridor Active Fault System[M].Seismological Press,Beijing(in Chinese).
国家地震局”阿尔金活动断裂带”课题组.1992.阿尔金活动断裂带[M].北京:地震出版社.Task group of Altun active fault Zone,State Seismological Bureau.1992.Altun Active Fault Zone[M].SeismologicalPress,Beijing(in Chinese).
甘卫军,刘百篪.2002.景泰-天祝断裂单元与多重特征地震的危险性概率评估[J].地震地质,24(1):45—58.GAN Wei-jun,LIU Bai-chi.2002.Probability of large earthquake recurrence along the Jingtai-Tianzhu active fault[J].Seismology and Geology,24(1):45—58(in Chinese).
何文贵,刘百篪,袁道阳,等.2000a.冷龙岭断裂带古地震研究[A].见:中国地震局地质研究所编.活动断裂研究(8).北京:地震出版社.64—74.HE Wen-gui,LIU Bai-chi,YUAN Dao-yang,et al.2000a.Preliminary research on the paleoearthquakes along theLenglongling active fault zone[A].In:Institute of Geology,China Seismological Bureau(ed).Research on Active Fault(8).Seismological press,Beijing,64—74(in Chinese).
何文贵,刘百篪,袁道阳,等.2000b.冷龙岭活动断裂的滑动速率研究[J].西北地震学报,22(1):90—97.HE Wen-gui,LIU Bai-chi,YUAN Dao-yang,et al.2000b.Research on slip rates of the Lenglongling active fault zone[J].Northwestern Seismological Journal,22(1):90—97(in Chinese).
何文贵.2001.龙首山北缘活动断裂与1954年山丹714级地震[A].见:全国8级地震讨论会论文.北京:地震出版社.224—230.HE Wen-gui.2001.The north Longshoushan piedmont active fault and the1954Shandan Earthquake(M=714)[A].In:Conference Corpus about Research of Great EarthquakesM8and Earthquake Protection and DisasterReduction.Seismological Press,Beijing.224—230(in Chinese).
李传友.2005.青藏高原东北部几条主要断裂的定量研究[D]:[学位论文].北京:中国地震局地质研究所.LI Chuan-you.2005.Quantitative studies on major active fault zones in northeastern Qinghai-Tibet Plateau[D].Ph DThesis.Institute of Geology,China Earthquake Administration,Beijing(in Chinese).
李玉龙,邢成起.1988.河西走廊地质构造的基本特征以及榆木山北麓与黑河上龙王活断层研究[J].西北地震学报,10(2):35—47.LI Yu-long,XING Cheng-qi.1988.Research on the fundamental characteristics of the geological structures of the HexiCorridor and the active faults of the northern and eastern flank of the Yumushan mountain[J].NorthwesternSeismological Journal,10(2):35—47(in Chinese).
刘百篪,周俊喜.1986.海源活断层研究(英文)[J].西北地震学报,8(3):79—89.LIU Bai-chi,ZHOU Jun-xi.1986.The research on the active Haiyuan Fault in China[J].Northwestern SeismologicalJournal,8(3):79—89.
刘光勋.1996.东昆仑活动断裂带及其强震活动[J].中国地震,12(2):119—126.LIU Guang-xun.1996.Eastern Kunlun active fault zone and its seismic activity[J].Earthquake Research in China,12(2):119—126(in Chinese).
刘建生,刘百篪.1994.肃南断裂晚第四纪活动特征及古地震初步研究[A].见:中国地震学会地震地质专业委员会编.中国活动断层研究.北京:地震出版社.36—41.LIU Jian-sheng,LIU Bai-chi.1994.Preliminary study on late Quaternary movement and paleoseismicity along theSunan Fault[A].In:Committee on Seismogeology,the Seismological Society of China(ed).The Active Faults inChina.Seismological Press,Beijing.36—41(in Chinese).
刘小凤,刘百篪,吕太乙,等.1994.老虎山活断层研究[J].华南地震,14(4):9—16.LIU Xiao-feng,LIU Bai-chi,L Tai-yi,et al.1994.The research on the Laohushan active fault[J].South ChinaJournal of Seismology,14(4):9—16(in Chinese).
刘小龙.2002.柴达木盆地北缘活动断裂系的新活动特征与祁连山活动地块的数值模拟研究[D]:[学位论文].兰州:中国地震局兰州地震研究所.LIU Xiao-long.2002.Neotectonic features of active fault system on the northern margin of Qaidam Basin and numericalsimulation of Qilianshan active crustal block[D].Ph M Dissertation.Lanzhou Institute of Seismology,ChinaEarthquake Administration,Lanzhou(in Chinese).
吕太乙,万夫领,廖元模,等.1994.会宁-义岗活动断裂与1352年会宁7·0级地震[A].见:中国地震学会地震地质专业委员会编.中国活动断层研究.北京:地震出版社.42—47.L Tai-yi,WAN Fu-ling,LIAO Yuan-mo,et al.1994.The Huining-Yigan active fault and the1352M7·0Huiningearthquake[A].In:Committee on Seismogeology,the Seismological Society of China(ed).The Active Faults inChina.Seismological Press,Beijing.42—47(in Chinese).
闵伟,张培震,邓起东.2001.中卫-同心断裂带全新世古地震研究[J].地震地质,23(3):357—366.MIN Wei,ZHANG Pei-zhen,DENG Qi-dong.2001.Study of Holocene paleoearthquakeson Zhongwei-Tongxin Faultzone[J].Seismology and Geology,23(3):357—366(in Chinese).
青海省地震局,中国地震局地壳应力研究所.1999.东昆仑活动断裂带[M].北京:地震出版社.Earthquake Administration of Qinghai Province and Institute of Crustal Dynamics,China Earthquake Administration.1999.East Kunlun Active Fault Zone[M].Seismological Press,Beijing(in Chinese).
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