郯庐断裂带渤海段与沂沭断裂带衔接关系
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摘要
以郯庐断裂带渤海段和沂沭断裂带的衔接点潍北凹陷为切入点,依据高精度大地电磁和地震剖面,解析了潍北凹陷的多条断裂,并结合地层发育等特征,研究渤海段中生代断裂活动及其与沂沭断裂带的构造关系。研究认为这些断裂可能属于不同的断裂体系。在潍北凹陷解析出的郯西(Fa)和郯东(Fb)两条断裂为古近纪正断裂系,呈现上陡下缓的勺状形态,消失在中地壳,切割部位较浅,主要控制新生界沉积。新生代正断裂系下部发育有6条显著的中生代断裂(F1—F6),为中生代伸展断裂系,其中东(F6)、西(F1)两条断裂的断裂面整体近直立,切穿深部的下地壳,并向下继续延伸,与中间4条断裂共同控制中生界沉积。结合区域地质背景和重磁延拓等资料,推断其向南分别与沂沭断裂带西支鄌郚—葛沟断裂和东支昌邑—大店断裂相衔接,向北伸入渤海湾盆地深部,并对浅部古近纪正断裂系的形成演化具有明显的约束作用。
Based on the high-precision magnetotelluric and seismic profiles,we analyzed several fractures of Weibei hollow which was the connection point of Bohai segment Fault and Yishu Fault Belt. Furthermore,integrated with stratum forming characters,we found these fractures might belong to different fault systems. We analyzed that the fault Fa and Fb were Paleogene normal faults corresponded with the west fault and east fault of the Tan-Lu fault zone. They showed steep or gentle spoon shaped morphology and disappeared in the middle crust. They controlled Cenozoic sedimentation and the cutting site was relatively shallow. Under the Cenozoic normal fault system,there were some Mesozoic faults which was called extensional fault system. The fault F1 and F6 whose fracture surface were overall suberect control Mesozoic sedimentation with other four faults.And their cutting site was relatively deep and extending downward. Integrated with regional tectonic background and Gravity-Magnetic anomaly data,we concluded that the fault F1 and F6 connected southward with Tangwu-Gegou fault and Changyi-Dadian fault and extended northward into the deep part of Bohai Bay Basin. At the same time,these Mesozoic faults constrained clearly the formation and evolution of the shallow Paleogene fault system.
Based on the high-precision magnetotelluric and seismic profiles,we analyzed several fractures of Weibei hollow which was the connection point of Bohai segment Fault and Yishu Fault Belt. Furthermore,integrated with stratum forming characters,we found these fractures might belong to different fault systems. We analyzed that the fault Fa and Fb were Paleogene normal faults corresponded with the west fault and east fault of the Tan-Lu fault zone. They showed steep or gentle spoon shaped morphology and disappeared in the middle crust. They controlled Cenozoic sedimentation and the cutting site was relatively shallow. Under the Cenozoic normal fault system,there were some Mesozoic faults which was called extensional fault system. The fault F1 and F6 whose fracture surface were overall suberect control Mesozoic sedimentation with other four faults.And their cutting site was relatively deep and extending downward. Integrated with regional tectonic background and Gravity-Magnetic anomaly data,we concluded that the fault F1 and F6 connected southward with Tangwu-Gegou fault and Changyi-Dadian fault and extended northward into the deep part of Bohai Bay Basin. At the same time,these Mesozoic faults constrained clearly the formation and evolution of the shallow Paleogene fault system.
引文
[1]漆家福,周心怀,王谦身.渤海海域中郯庐深断裂带的结构模型及新生代运动学[J].中国地质,2010,37(5):1231~1242.QI Jia-fu,ZHOU Xin-huai,WANG Qian-shen.Structural model and Cenozoic kinematics of Tan-Lu deep fracture zone in Bohai Sea area[J].Chinese Geology,2010,37(5):1231~1242.
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[4]徐振中,陈世悦,王永诗.渤海湾地区中生代构造活动与沉积作用[J].中国地质,2006,33(1):201~211.XU Zhen-zhong,CHEN Shi-yue,WANG Yong-shi.Mesozoic tectonic activities and sedimentation in the Bohai Gulf area[J].Chinese Geology,2006,33(1):201~211.
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[6]龚再升,蔡东升,张功成,等.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.GONG Zai-sheng,CAI Dong-sheng,ZHANG Gong-cheng,et al.Dominating action of Tanlu Fault on hydrocarbon accumulation in eastern Bohai Sea area[J].Acta Petrolei Sinica,2007,28(4):1~10.
[7]张鹏,王良书,钟锴,等.郯庐断裂带的分段性研究[J].地质论评,2007,53(5):586~591.ZHANG Peng,WANG Liang-shu,ZHONG Kai,et al.Research on the Segmentation of Tancheng-Lujiang Fault Zone[J].Geological Review,2007,53(5):586~591.
[8]张交东,杨晓勇,刘成斋,等.大别山北缘深部结构的高精度重磁电震解析[J].地球物理学报,2012,55(7):2292~2306.ZHANG Jiao-dong,YANG Xiao-yong,LIU Cheng-zhai et al.The fine deep structure of the northern margin of the Dabie Orogenic Belt from gravity-magnetic-electrical-seismic combination survey[J].Chinese Journal of Geophysics,2012,55(7):2292~2306.
[9]张交东,杨长春,刘成斋,等.郯庐断裂南段走滑和伸展断裂的深部结构及位置关系[J].地球物理学报,2010,53(4):864~873.ZHANG Jiao-dong,YANG Chang-chun,LIU Cheng-zhai,et al.The deep structures of strike-slip and extension faults and their composite relationship in the southern segment of Tanlu fault zone[J].Chinese Journal of Geophysics,2010,53(4):864~873.
[10]HOU Guiting,HARI K R.Mesozoic-Cenozoic extension of the Bohai Sea:contribution to the destruction of North China Craton[J].Frontiers of Earth Science,2014,(2):202~215.
[11]ZHANG Jiao-dong,HAO Tian-yao,DONG Shu-wen,et al.The structural and tectonic relationships of the major fault systems of the Tan-Lu fault zone,with a focus on the segments within the North China region[J].Journal of Asian Earth Sciences,2015,110(1):85~100.
[12]张岳桥,董树文.郯庐断裂带中生代构造演化史:进展与新认识[J].地质通报,2008,27(9):1371~1390.ZHANG Yue-qiao,DONG Shu-wen.Mesozoic tectonic evolution history of the Tan-Lu fault zone,China:Advances and new understanding[J].Geologcal Bulletin of China,2008,27(9):1371~1390.
[13]QI Jia-fu,LI Xiao-guang.Cenozoic structural deformation and expression of the“Tan-Lu Fault Zone”in the West Sag of Liaohe Depression,Bohaiwan basin province,China[J].Science China Earth Sciences,2013,(10);1707~1721.
[14]WU Zhi-ping,CHANG Yan-jun,YAN Shi-yong,et al.Development characteristics of the fault system and its control on basin structure,Bodong Sag,East China[J].Petroleum Science,2013,(4);450~457.
[15]邓运华.郯庐断裂带新构造运动对渤海东部油气聚集的控制作用[J].中国海上油气(地质),2001,15(5):301~305.DENG Yun-hua.Control of the neotectonism along Tangcheng-Lujiang fracture zone on hydrocarbon accumulation in the eastern Bohai Sea[J].China Offshore Oil and Gas(Geology),2001,15(5):301~305.
[16]姜丽娜,邹华耀.郯庐断裂带渤中-渤南段新构造运动期断层活动与油气运聚[J].石油与天然气地质,2009,30(4):462~468.JIANG Li-na,ZOU Hua-yao.Fault activities and hydrocarbon migration and accumulation during the Neotectonic period in the Bozhong-Bonan segment of the Tanlu fault zone[J].Oil&Gas Geology,2009,30(4):462~468.
[17]王应斌,黄雷.渤海海域营潍断裂带展布特征及新生代控盆模式[J].地质学报,2013,87(12):1811~1818.WANG Ying-bin,HUANG Lei.Distribution characteristic of the Bohai Sea and cenozoic Ying-Wei Fault Zone offshore Basin-controlling model[J].Acta Geologica Sinica,2013,87(12):1811~1818.
[18]王国纯.郯庐断裂与渤海海域反转构造及花状构造[J].中国海上油气(地质),1998,12(5):289~295.WANG Guo-chun.The flower structure and inversion structure of the Tanlu fault and Bohai Sea[J].China Offshore Oil and Gas(Geology),1998,12(5):289~295.
[19]孙磉礅.营潍断裂带结构特征及其与相邻盆地的关系[J].大地构造与成矿学,2008,32(4):418~426.SUN Sang-dun.The structural characteristics of the Yingwei Fault zone and its relationship with the adjacent basins[J].Geotectonica et Metallogenia,2008,32(4):418~426.
[20]TIAN Hong-shui,ZHANG Zeng-qi,ZHANG Bang-hua,et al.Tectonic Taphrogenesis and Paleoseismic Records from the Yishu Fault Zone in the Initial Stage of the Caledonian Movement[J].Acta Geologica Sinica,2013,87(4):936~947.
[21]YAN Le-jia,ZHU Guang,LIN Shao-ze,et al.Neotectonic activity and formation mechanism of the Yishu Fault Zone[J].Science China Earth Sciences,2014,57(4):614~629.
[22]石文杰,魏俊浩,谭俊,等.郯庐断裂带晚白垩世金成矿作用:来自龙泉站金矿床黄铁矿Rb-Sr年代学证据[J].地球科学:中国地质大学学报,2014,(3):325~340.SHI Wen-jie,WEI Jun-hao,TAN Jun,et al.Late Early Cretaceous Gold Mineralization in Tan-Lu Fault Zone:Evidence from Rb-Sr Isotopic Dating of Pyrite from Longquanzhan Gold Deposit[J].Earth Science-Journal of China University of Geosciences,2014,(3):325~340.
[23]吴齐,牛漫兰,朱光,等.沂沭断裂带高桥盆地早白垩世火山岩的地球化学及岩石成因[J].地质科学,2014,49(4):1113~1131.WU Qi,NIU Man-lan,ZHU Guang,et al.Geochemistry and petrogenesis of the Early Cretaceous volcanic rocks in Gaoqiao Basin along the Yi-Shu fault zone[J].Chinese Journal of Geology,2014,49(4):1113~1131.
[24]李晓清,汪泽成,程有义,等.拉分盆地分析与含油气性——以潍北盆地为例[M].石油大学出版社,2003.LI Xiao-qing,WANG Ze-cheng,CHENG You-yi,et al.Pull apart basin analysis and its oil-gas——take the Weibei basin as an example.Petroleum University Press,Dongying,2003.
[25]张继红,赵国泽,肖骑彬,等.郯庐断裂带中段(沂沭断裂带)电性结构研究与孕震环境[J].地球物理学报,2010,53(3):605~611.ZHANG Ji-hong,ZHAO Guo-ze,XIAO Qi-bin,et al.Analysis of electric structure of the central Tan-Lu fault zone(YiShu fault zone,36°N)and seismogenic condition[J].Chinese Journal of Geophysics,2010,53(3):605~611.
[26]詹润,朱光,杨贵丽,等.渤海海域新近纪断层成因与动力学状态[J].地学前缘,2013,20(4):151~165.ZHAN Run,ZHU Guang,YANG Gui-li,et al.The genesis of the faults and the geodynamic environment during Neogene for offshore of the Bohai sea[J].Earth Science Frontiers,2013,20(4):151~165.
[27]万桂梅,汤良杰,周心怀,等.郯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.WAN Gui-mei,TANG Liang-jie,ZHOU Xin-huai,et al.Tectonic characteristics of the Tanlu fault zone in Bodong area of Bohai Sea[J].Acta Petrolei Sinica,2009,30(3):342~346.
[2]朱光,刘国生,牛漫兰,等.郯庐断裂带晚第三纪以来的浅部挤压活动与深部过程[J].地震地质,2002,24(2):265~277.ZHU Guang,LIU Guo-sheng,NIU Man-lan,et al.Post-eogene compressive activities on the Tan-Lu fault zone and their deep processes[J].Seismology and Geology,2002,24(2):265~277.
[3]侯明金,Jacques Mercier,Pierre Vergely,等.郯庐断裂带的两大发展阶段——广义的逆冲推覆断裂带和狭义的平移断裂带[J].中国地质,2006,33(6):1267~1275.HOU Ming-jin,Jacques Mercier,Pierre Vergely,et al.Two development stages of the Tanlu fault zone:the stages of the overthrust fault zone sensu lato and the wrench fault zone sensu stricto[J].Chinese Geology,2006,33(6):1267~1275.
[4]徐振中,陈世悦,王永诗.渤海湾地区中生代构造活动与沉积作用[J].中国地质,2006,33(1):201~211.XU Zhen-zhong,CHEN Shi-yue,WANG Yong-shi.Mesozoic tectonic activities and sedimentation in the Bohai Gulf area[J].Chinese Geology,2006,33(1):201~211.
[5]蔡东升,罗毓晖,武文来,等.渤海浅层构造变形特征、成因机理与渤中坳陷及其周围油气富集的关系[J].中国海上油气(地质),2001,15(1):35~43.CAI Dong-sheng,LUO Yu-hui,WU Wen-lai,et al.Shallow tectonic deformation and its relationship to hydrocarbon enrichment in Bozhong Depression and adjacent area Bohai Bay Basin[J].China Offshore Oil and Gas(Geology),2001,15(1):35~43.
[6]龚再升,蔡东升,张功成,等.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.GONG Zai-sheng,CAI Dong-sheng,ZHANG Gong-cheng,et al.Dominating action of Tanlu Fault on hydrocarbon accumulation in eastern Bohai Sea area[J].Acta Petrolei Sinica,2007,28(4):1~10.
[7]张鹏,王良书,钟锴,等.郯庐断裂带的分段性研究[J].地质论评,2007,53(5):586~591.ZHANG Peng,WANG Liang-shu,ZHONG Kai,et al.Research on the Segmentation of Tancheng-Lujiang Fault Zone[J].Geological Review,2007,53(5):586~591.
[8]张交东,杨晓勇,刘成斋,等.大别山北缘深部结构的高精度重磁电震解析[J].地球物理学报,2012,55(7):2292~2306.ZHANG Jiao-dong,YANG Xiao-yong,LIU Cheng-zhai et al.The fine deep structure of the northern margin of the Dabie Orogenic Belt from gravity-magnetic-electrical-seismic combination survey[J].Chinese Journal of Geophysics,2012,55(7):2292~2306.
[9]张交东,杨长春,刘成斋,等.郯庐断裂南段走滑和伸展断裂的深部结构及位置关系[J].地球物理学报,2010,53(4):864~873.ZHANG Jiao-dong,YANG Chang-chun,LIU Cheng-zhai,et al.The deep structures of strike-slip and extension faults and their composite relationship in the southern segment of Tanlu fault zone[J].Chinese Journal of Geophysics,2010,53(4):864~873.
[10]HOU Guiting,HARI K R.Mesozoic-Cenozoic extension of the Bohai Sea:contribution to the destruction of North China Craton[J].Frontiers of Earth Science,2014,(2):202~215.
[11]ZHANG Jiao-dong,HAO Tian-yao,DONG Shu-wen,et al.The structural and tectonic relationships of the major fault systems of the Tan-Lu fault zone,with a focus on the segments within the North China region[J].Journal of Asian Earth Sciences,2015,110(1):85~100.
[12]张岳桥,董树文.郯庐断裂带中生代构造演化史:进展与新认识[J].地质通报,2008,27(9):1371~1390.ZHANG Yue-qiao,DONG Shu-wen.Mesozoic tectonic evolution history of the Tan-Lu fault zone,China:Advances and new understanding[J].Geologcal Bulletin of China,2008,27(9):1371~1390.
[13]QI Jia-fu,LI Xiao-guang.Cenozoic structural deformation and expression of the“Tan-Lu Fault Zone”in the West Sag of Liaohe Depression,Bohaiwan basin province,China[J].Science China Earth Sciences,2013,(10);1707~1721.
[14]WU Zhi-ping,CHANG Yan-jun,YAN Shi-yong,et al.Development characteristics of the fault system and its control on basin structure,Bodong Sag,East China[J].Petroleum Science,2013,(4);450~457.
[15]邓运华.郯庐断裂带新构造运动对渤海东部油气聚集的控制作用[J].中国海上油气(地质),2001,15(5):301~305.DENG Yun-hua.Control of the neotectonism along Tangcheng-Lujiang fracture zone on hydrocarbon accumulation in the eastern Bohai Sea[J].China Offshore Oil and Gas(Geology),2001,15(5):301~305.
[16]姜丽娜,邹华耀.郯庐断裂带渤中-渤南段新构造运动期断层活动与油气运聚[J].石油与天然气地质,2009,30(4):462~468.JIANG Li-na,ZOU Hua-yao.Fault activities and hydrocarbon migration and accumulation during the Neotectonic period in the Bozhong-Bonan segment of the Tanlu fault zone[J].Oil&Gas Geology,2009,30(4):462~468.
[17]王应斌,黄雷.渤海海域营潍断裂带展布特征及新生代控盆模式[J].地质学报,2013,87(12):1811~1818.WANG Ying-bin,HUANG Lei.Distribution characteristic of the Bohai Sea and cenozoic Ying-Wei Fault Zone offshore Basin-controlling model[J].Acta Geologica Sinica,2013,87(12):1811~1818.
[18]王国纯.郯庐断裂与渤海海域反转构造及花状构造[J].中国海上油气(地质),1998,12(5):289~295.WANG Guo-chun.The flower structure and inversion structure of the Tanlu fault and Bohai Sea[J].China Offshore Oil and Gas(Geology),1998,12(5):289~295.
[19]孙磉礅.营潍断裂带结构特征及其与相邻盆地的关系[J].大地构造与成矿学,2008,32(4):418~426.SUN Sang-dun.The structural characteristics of the Yingwei Fault zone and its relationship with the adjacent basins[J].Geotectonica et Metallogenia,2008,32(4):418~426.
[20]TIAN Hong-shui,ZHANG Zeng-qi,ZHANG Bang-hua,et al.Tectonic Taphrogenesis and Paleoseismic Records from the Yishu Fault Zone in the Initial Stage of the Caledonian Movement[J].Acta Geologica Sinica,2013,87(4):936~947.
[21]YAN Le-jia,ZHU Guang,LIN Shao-ze,et al.Neotectonic activity and formation mechanism of the Yishu Fault Zone[J].Science China Earth Sciences,2014,57(4):614~629.
[22]石文杰,魏俊浩,谭俊,等.郯庐断裂带晚白垩世金成矿作用:来自龙泉站金矿床黄铁矿Rb-Sr年代学证据[J].地球科学:中国地质大学学报,2014,(3):325~340.SHI Wen-jie,WEI Jun-hao,TAN Jun,et al.Late Early Cretaceous Gold Mineralization in Tan-Lu Fault Zone:Evidence from Rb-Sr Isotopic Dating of Pyrite from Longquanzhan Gold Deposit[J].Earth Science-Journal of China University of Geosciences,2014,(3):325~340.
[23]吴齐,牛漫兰,朱光,等.沂沭断裂带高桥盆地早白垩世火山岩的地球化学及岩石成因[J].地质科学,2014,49(4):1113~1131.WU Qi,NIU Man-lan,ZHU Guang,et al.Geochemistry and petrogenesis of the Early Cretaceous volcanic rocks in Gaoqiao Basin along the Yi-Shu fault zone[J].Chinese Journal of Geology,2014,49(4):1113~1131.
[24]李晓清,汪泽成,程有义,等.拉分盆地分析与含油气性——以潍北盆地为例[M].石油大学出版社,2003.LI Xiao-qing,WANG Ze-cheng,CHENG You-yi,et al.Pull apart basin analysis and its oil-gas——take the Weibei basin as an example.Petroleum University Press,Dongying,2003.
[25]张继红,赵国泽,肖骑彬,等.郯庐断裂带中段(沂沭断裂带)电性结构研究与孕震环境[J].地球物理学报,2010,53(3):605~611.ZHANG Ji-hong,ZHAO Guo-ze,XIAO Qi-bin,et al.Analysis of electric structure of the central Tan-Lu fault zone(YiShu fault zone,36°N)and seismogenic condition[J].Chinese Journal of Geophysics,2010,53(3):605~611.
[26]詹润,朱光,杨贵丽,等.渤海海域新近纪断层成因与动力学状态[J].地学前缘,2013,20(4):151~165.ZHAN Run,ZHU Guang,YANG Gui-li,et al.The genesis of the faults and the geodynamic environment during Neogene for offshore of the Bohai sea[J].Earth Science Frontiers,2013,20(4):151~165.
[27]万桂梅,汤良杰,周心怀,等.郯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.WAN Gui-mei,TANG Liang-jie,ZHOU Xin-huai,et al.Tectonic characteristics of the Tanlu fault zone in Bodong area of Bohai Sea[J].Acta Petrolei Sinica,2009,30(3):342~346.