晚更新世以来渤海南部海域断裂活动性
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摘要
渤海在新生代经历2次强烈的沉降阶段,海域内各断裂活动对渤海盆地的演化发育产生重要影响。以渤海40°N以南海域单道地震资料为基础,对研究区内断裂活动性进行研究,结果表明:晚更新世(128 ka BP)以来,研究区内断裂活动性很强,以郯庐断裂渤海段最强,其平均垂向活动率大于0.05 mm/a;此期间渤海经历2个构造活跃期,分别为60~53 ka BP和22~10 ka BP;近期内渤海海域可能发生中小震,发生6级以上强震的可能性不大。
There happened two subsiding moments to Bohai Sea in the Cenozoic.The activity of the faults in this area played an important role in affecting the evolution and development of the Bohai basin.Based on seismic data collected in this area,this paper studied the activity of the faults in the southern part of Bohai Sea since the late Pleistocene.The results show that the fault activity is intensive since the late Pleistocene,of which the activity of Tanlu Fault Zone is the most intensive,with the average rate to the vertical slip exceeding 0.06 mm/a.There are two actively tectonic periods,60 ka B.P.to 53 ka B.P.and 22 ka B.P.to 10 ka B.P.,respectively.The faults are possible to induce minor and moderate earthquakes,but hardly the strong ones in recent years.
There happened two subsiding moments to Bohai Sea in the Cenozoic.The activity of the faults in this area played an important role in affecting the evolution and development of the Bohai basin.Based on seismic data collected in this area,this paper studied the activity of the faults in the southern part of Bohai Sea since the late Pleistocene.The results show that the fault activity is intensive since the late Pleistocene,of which the activity of Tanlu Fault Zone is the most intensive,with the average rate to the vertical slip exceeding 0.06 mm/a.There are two actively tectonic periods,60 ka B.P.to 53 ka B.P.and 22 ka B.P.to 10 ka B.P.,respectively.The faults are possible to induce minor and moderate earthquakes,but hardly the strong ones in recent years.
引文
[1]Tang Liangjie,Wan Guimei,Zhou Xinhuai,et al.Cenozonic geo-tectonic evolution of the Bohai Basin[J].Geological Journal ofChina Universities,2008,14(2):191-198.[汤良杰,万桂梅,周心怀,等.渤海盆地新生代构造演化特征[J].高校地质学报,2008,14(2):191-198.]
[2]Xu Jie,Ran Yongkang,Shan Xinjian,et al.Developmnet of theQuaternary system in the Bohai Sea area,China[J].Seismologyand Geology,2004,26(1):24-32.[徐杰,冉勇康,单新建,等.渤海海域第四系发育概况[J].地震地质,2004,26(1):24-32.]
[3]Zhou Bin,Zhang Yingkai,Li Jixun.Characteristics of geology,ge-ophysical field and seismic activity of Bohai Sea and its activity[J].Northwestern Seismological Journal,2000,22(3):333-337.[周斌,张英凯,李继训.渤海及邻区地震地质、地球物理场和地震活动特征[J].西北地震学报,2000,22(3):333-337.]
[4]Wan Tianfeng,Zhu Hong,Zhao Lei,et al.Formation and evolu-tion of Tancheng-Lujiang Fault zone:Areview[J].China Univer-sity ofGeosciences,1996,10(2):159-168.[万天丰,朱鸿,赵磊,等.郯庐断裂的形成和演化:综述[J].现代地质,1996,10(2):159-168.]
[5]Liu Guangxia,Zhao Wenjun,Zhang Xian.The deep structurecharacteristics of the Tanlu Fault zone,Bohai segment[J].Jour-nal ofChangchun University ofErath Sciences,1996,26(4):388-391.[刘光夏,赵文俊,张先.郯庐断裂带渤海段的深部构造特征——地壳厚度和居里面的研究结果[J].长春地院地质学报,1996,26(4):388-391.]
[6]Song Guoqi.Deep Structures of the Bohai part of the Tanlu Faultzone and their dynamic implications[J].Journal ofHefei Univer-sity ofTechnology,2007,30(6):663-667.[宋国奇.郯庐断裂带渤海段的深部构造与动力学意义[J].合肥工业大学学报,2007,30(6):663-667.]
[7]Hu Wangshui,L櫣Bingquan,Guan Dayong,et al.Characteristicsof Tanlu Fault zone and development of Mesozoic and Cenozoic ba-sins along it[J].Marine Geology&Quaternary Geology,2003,23(4):51-58.[胡望水,吕炳全,官大勇,等.郯庐断裂带及其周缘中新生代盆地发育特征[J].海洋地质与第四纪地质,2003,23(4):51-58.]
[8]Zhou Bin,Deng Zhihui,Chao Hongtai,et al.Strike-slip tectoniccharacteristics,evolution and dynamic mechanismof Yingwei Faultzone[J].Northweatern Seismological Journay,2008,30(2):117-123.[周斌,邓志辉,晁洪太,等.营潍断裂带走滑构造特征、演化及动力学机制[J].西北地震学报,2008,30(2):117-123.]
[9]Gao Xianglin.Recent activities of the Tanlu Fault zone in the cen-tral Bohai Sea and generated fault during Neogene in Bohai Sea[J].Chinese Journal ofGeology,2006,41(2):355-364.[高祥林.渤海中部郯庐断裂带的近期活动与渤海新近系新生断裂[J].地质科学,2006,41(2):355-364.]
[10]Xu Jie,Song Changqing,Chu Quanzhi.Prelimininary study onthe seismotectonic characters of the Zhangjiakou-Penglai Faultzone[J].Seismology and Geoloy,1998,20(2):147-154.[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):147-154.]
[11]Meng Jiaoguo,Wang Xibo,Chen Lin,et al.Analysis of the recentseismic activity on the Bohai Sea and its surrounding area[J].Seismological and Geomagentic Boservation and Research,2009,30(4):12-18.[孟建国,王希波,陈琳,等.渤海及邻近地区各主要断块近期地震活动分析[J].地震地磁观测与研究,2009,30(4):12-18.]
[12]Li Xishuang,Liu Baohua,Hua Qingfeng,et al.Characters of theZhangjiakou-Penglai Fault zone activity in the Bohai Sea sinceLate Quaternary[J].Advances in Marine Science,2009,27(3):332-341.[李西双,刘保华,华清峰,等.张家口—蓬莱断裂带渤海段晚第四纪活动特征[J].海洋科学进展,2009,27(3):332-341.]
[13]Deng Qidong.The Zhangjiakou-Penglai Fault zone[C]∥ZhaoGuomin.30 Anniversary Symposium for Earthquake Disaster Mit-igation in Tianjin.Beijing:Seismological Press,2006:23-29.[邓起东.张家口—蓬莱断裂带[C]∥赵国敏.天津市防震减灾30年纪念论文集.北京:地震出版社,2006:23-29.]
[14]Wang Hualin,Wang Yongguang,Liu Xiqiang,et al.Study onfault tectonics and strong seismicity in Bohai and its adjacent re-gions[J].Journal ofSeismological Research,2000,23(1):35-43.[王华林,王永光,刘希强,等.渤海及周围地区断裂构造与地震活动研究[J].地震研究,2000,23(1):35-43.]
[15]Wan Guimei,Tang Liangjie,Zhou Xinhuai,et al.Tectoniccharacteristic of the Tanlu Fault zone in Bodong area of Bohai sea[J].Acta Petrol EISinica,2009,30(3):342-346.[万桂梅,汤良杰,周心怀,等.庐断裂带在渤海海域渤东地区的构造特征[J].石油学报,2009,30(3):342-346.]
[16]Wu Shiguo,Yu Zhaohua,Zou Dongbo,et al.Strutural featuresand Cenozoic evolution of the Tanlu Fault zone in the LaizhouBay,Bohai Sea[J].Marne Geology&Quaternary Geology,2006,26(6):101-110.[吴时国,余朝华,邹东波,等.莱州湾地区郯庐断裂带的构造特征及其新生代演化[J].海洋地质与第四纪地质,2006,26(6):101-110.]
[17]Deng Qidong,Min Wei,Chao Hongtai,et al.Cenozoic structureand earthquakes in Bohai sea[C]∥New Structure and Environ-ment.Beijing:Earthquake Public Company,2001:218-233.[邓起东,闵伟,晁洪太,等.渤海地区新生代构造与地震活动[C]∥新构造与环境.北京:地震出版社,2001:218-233.]
[18]Qi Jiafu,Deng Rongjing,Zhou Xinhuai,et al.The Tanlu Faultzone in Cenozoic Basin Bohai Sea[J].Chinese Science(SeriesD),2008,38(Suppl.I):19-29.[漆家福,邓荣敬,周心怀,等.渤海海域新生代盆地中的郯庐断裂带构造[J].中国科学:D辑,2008,38(增刊I):19-29.]
[19]Gong Zaisheng,Cai Dongsheng,Zhang Gongcheng.Dominatingaction of Tanlu Fault on hydrocarbon accumulation in Eastern Bo-hai Sea area[J].Acta Petrol EISinica,2007,28(4):1-10.[龚再升,蔡东升,张功成.郯庐断裂对渤海海域东部油气成藏的控制作用[J].石油学报,2007,28(4):1-10.]
[20]Li Xishuang,Zhao Yuexia,Liu Baohua,et al.Structural de-formation and fault activity of the Tan-Lu Fault zone in the BohaiSea since the Late Pleistocene[J].Chinese Science Bulletin,2010,55(8):684-692.[李西双,赵月霞,刘保华,等.郯庐断裂带渤海段晚更新世以来的浅层构造变形和活动性[J].科学通报,2010,55(8):684-692.]
[21]Zhu Guang,Wang Daoxuan,Liu Guosheng,et al.Extensionalactivities along the Yanlu Fault zone and it′s geodynamic setting[J].Chinese Journal ofGeology,2001,36(3):269-278.[朱光,王道轩,刘国生,等.郯庐断裂带的伸展活动及其动力学背景[J].地质科学,2001,36(3):269-278.]
[2]Xu Jie,Ran Yongkang,Shan Xinjian,et al.Developmnet of theQuaternary system in the Bohai Sea area,China[J].Seismologyand Geology,2004,26(1):24-32.[徐杰,冉勇康,单新建,等.渤海海域第四系发育概况[J].地震地质,2004,26(1):24-32.]
[3]Zhou Bin,Zhang Yingkai,Li Jixun.Characteristics of geology,ge-ophysical field and seismic activity of Bohai Sea and its activity[J].Northwestern Seismological Journal,2000,22(3):333-337.[周斌,张英凯,李继训.渤海及邻区地震地质、地球物理场和地震活动特征[J].西北地震学报,2000,22(3):333-337.]
[4]Wan Tianfeng,Zhu Hong,Zhao Lei,et al.Formation and evolu-tion of Tancheng-Lujiang Fault zone:Areview[J].China Univer-sity ofGeosciences,1996,10(2):159-168.[万天丰,朱鸿,赵磊,等.郯庐断裂的形成和演化:综述[J].现代地质,1996,10(2):159-168.]
[5]Liu Guangxia,Zhao Wenjun,Zhang Xian.The deep structurecharacteristics of the Tanlu Fault zone,Bohai segment[J].Jour-nal ofChangchun University ofErath Sciences,1996,26(4):388-391.[刘光夏,赵文俊,张先.郯庐断裂带渤海段的深部构造特征——地壳厚度和居里面的研究结果[J].长春地院地质学报,1996,26(4):388-391.]
[6]Song Guoqi.Deep Structures of the Bohai part of the Tanlu Faultzone and their dynamic implications[J].Journal ofHefei Univer-sity ofTechnology,2007,30(6):663-667.[宋国奇.郯庐断裂带渤海段的深部构造与动力学意义[J].合肥工业大学学报,2007,30(6):663-667.]
[7]Hu Wangshui,L櫣Bingquan,Guan Dayong,et al.Characteristicsof Tanlu Fault zone and development of Mesozoic and Cenozoic ba-sins along it[J].Marine Geology&Quaternary Geology,2003,23(4):51-58.[胡望水,吕炳全,官大勇,等.郯庐断裂带及其周缘中新生代盆地发育特征[J].海洋地质与第四纪地质,2003,23(4):51-58.]
[8]Zhou Bin,Deng Zhihui,Chao Hongtai,et al.Strike-slip tectoniccharacteristics,evolution and dynamic mechanismof Yingwei Faultzone[J].Northweatern Seismological Journay,2008,30(2):117-123.[周斌,邓志辉,晁洪太,等.营潍断裂带走滑构造特征、演化及动力学机制[J].西北地震学报,2008,30(2):117-123.]
[9]Gao Xianglin.Recent activities of the Tanlu Fault zone in the cen-tral Bohai Sea and generated fault during Neogene in Bohai Sea[J].Chinese Journal ofGeology,2006,41(2):355-364.[高祥林.渤海中部郯庐断裂带的近期活动与渤海新近系新生断裂[J].地质科学,2006,41(2):355-364.]
[10]Xu Jie,Song Changqing,Chu Quanzhi.Prelimininary study onthe seismotectonic characters of the Zhangjiakou-Penglai Faultzone[J].Seismology and Geoloy,1998,20(2):147-154.[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):147-154.]
[11]Meng Jiaoguo,Wang Xibo,Chen Lin,et al.Analysis of the recentseismic activity on the Bohai Sea and its surrounding area[J].Seismological and Geomagentic Boservation and Research,2009,30(4):12-18.[孟建国,王希波,陈琳,等.渤海及邻近地区各主要断块近期地震活动分析[J].地震地磁观测与研究,2009,30(4):12-18.]
[12]Li Xishuang,Liu Baohua,Hua Qingfeng,et al.Characters of theZhangjiakou-Penglai Fault zone activity in the Bohai Sea sinceLate Quaternary[J].Advances in Marine Science,2009,27(3):332-341.[李西双,刘保华,华清峰,等.张家口—蓬莱断裂带渤海段晚第四纪活动特征[J].海洋科学进展,2009,27(3):332-341.]
[13]Deng Qidong.The Zhangjiakou-Penglai Fault zone[C]∥ZhaoGuomin.30 Anniversary Symposium for Earthquake Disaster Mit-igation in Tianjin.Beijing:Seismological Press,2006:23-29.[邓起东.张家口—蓬莱断裂带[C]∥赵国敏.天津市防震减灾30年纪念论文集.北京:地震出版社,2006:23-29.]
[14]Wang Hualin,Wang Yongguang,Liu Xiqiang,et al.Study onfault tectonics and strong seismicity in Bohai and its adjacent re-gions[J].Journal ofSeismological Research,2000,23(1):35-43.[王华林,王永光,刘希强,等.渤海及周围地区断裂构造与地震活动研究[J].地震研究,2000,23(1):35-43.]
[15]Wan Guimei,Tang Liangjie,Zhou Xinhuai,et al.Tectoniccharacteristic of the Tanlu Fault zone in Bodong area of Bohai sea[J].Acta Petrol EISinica,2009,30(3):342-346.[万桂梅,汤良杰,周心怀,等.庐断裂带在渤海海域渤东地区的构造特征[J].石油学报,2009,30(3):342-346.]
[16]Wu Shiguo,Yu Zhaohua,Zou Dongbo,et al.Strutural featuresand Cenozoic evolution of the Tanlu Fault zone in the LaizhouBay,Bohai Sea[J].Marne Geology&Quaternary Geology,2006,26(6):101-110.[吴时国,余朝华,邹东波,等.莱州湾地区郯庐断裂带的构造特征及其新生代演化[J].海洋地质与第四纪地质,2006,26(6):101-110.]
[17]Deng Qidong,Min Wei,Chao Hongtai,et al.Cenozoic structureand earthquakes in Bohai sea[C]∥New Structure and Environ-ment.Beijing:Earthquake Public Company,2001:218-233.[邓起东,闵伟,晁洪太,等.渤海地区新生代构造与地震活动[C]∥新构造与环境.北京:地震出版社,2001:218-233.]
[18]Qi Jiafu,Deng Rongjing,Zhou Xinhuai,et al.The Tanlu Faultzone in Cenozoic Basin Bohai Sea[J].Chinese Science(SeriesD),2008,38(Suppl.I):19-29.[漆家福,邓荣敬,周心怀,等.渤海海域新生代盆地中的郯庐断裂带构造[J].中国科学:D辑,2008,38(增刊I):19-29.]
[19]Gong Zaisheng,Cai Dongsheng,Zhang Gongcheng.Dominatingaction of Tanlu Fault on hydrocarbon accumulation in Eastern Bo-hai Sea area[J].Acta Petrol EISinica,2007,28(4):1-10.[龚再升,蔡东升,张功成.郯庐断裂对渤海海域东部油气成藏的控制作用[J].石油学报,2007,28(4):1-10.]
[20]Li Xishuang,Zhao Yuexia,Liu Baohua,et al.Structural de-formation and fault activity of the Tan-Lu Fault zone in the BohaiSea since the Late Pleistocene[J].Chinese Science Bulletin,2010,55(8):684-692.[李西双,赵月霞,刘保华,等.郯庐断裂带渤海段晚更新世以来的浅层构造变形和活动性[J].科学通报,2010,55(8):684-692.]
[21]Zhu Guang,Wang Daoxuan,Liu Guosheng,et al.Extensionalactivities along the Yanlu Fault zone and it′s geodynamic setting[J].Chinese Journal ofGeology,2001,36(3):269-278.[朱光,王道轩,刘国生,等.郯庐断裂带的伸展活动及其动力学背景[J].地质科学,2001,36(3):269-278.]
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