渤海湾盆地莱州湾凹陷新生代盆地演化
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摘要
利用莱州湾凹陷及其围区现有的地震、钻井等勘探资料,通过地层展布特点分析、构造恢复、单井埋藏史-沉降史分析等手段,对凹陷的新生代构造演化进行了详细研究。对地层与构造的研究分析发现,新生代存在两期构造应力场变革对莱州湾凹陷的形成演化起到至关重要的作用,即沙三期前后应力场转换(40Ma左右)与古近纪、新近纪之间的应力场转换(20Ma左右),其中前者与郯庐断裂由左旋转为右旋这一事件相耦合,而可能与之具有一定内在联系。对于盆地性质的分析认为,莱州湾凹陷并非典型的右旋走滑拉分盆地,而是受走滑作用影响的以伸展作用主控的裂谷盆地,其中沙三期之前可能为左旋走滑影响下的断陷盆地,而之后则为右旋走滑作用改造下的断陷-坳陷盆地。综合分析后,最终将凹陷在新生代的演化分为断陷期(孔店-沙四期—沙三期)、断拗期(沙二-沙一期—东营期)、坳陷期(东一期—馆陶期)、新构造活动影响期(明化镇期至今)4个阶段。
The Cenozoic tectonic evolution of the Laizhouwan Sag were systematically analyzed using currently-available seismic and drilling data,distribution features,tectonic restoration,deposition and subsidence history,and etc.The sequence and tectonic analyses reveal that in the Cenozoic,there were at least two phases of tectonic stress field changes,which played vital role in the formation and evolution of the Layzhouwan Sag.One occurred during Sha3 period(about 40Ma)and the other between Paleogene and Neogene(about 20Ma).The former was coupled with another tectonic event,the Tan-Lu Fault's slip reversal from left lateral to right lateral,and it implies that both of them may have some geodynamical relationship.Analysis of type of the basin indicates that the Laizhouwan Sag is not a typical right-lateral strike-slip pull-apart basin,but a rifted basin controlled mainly by the extensional regime affected by the strike-slip.It is likely that the basin was affected by the left-lateral strike-slip before Sha3 period,and then was reformed into rifted and depression basin under the influence of right-lateral strike-slip.Integrated study shows that evolution of the Laizhouwan Sag in Cenozoic can be divided into four stages:rifted stage(from Kongdian period to Sha3 period),rifting-depression stage(from Sha 2 period to Dongying period),post-rift depression stage(from Dong 1 period to Guantao period),and neotectonism-related post-rift depression stage(from Minghuazhen period to now).
The Cenozoic tectonic evolution of the Laizhouwan Sag were systematically analyzed using currently-available seismic and drilling data,distribution features,tectonic restoration,deposition and subsidence history,and etc.The sequence and tectonic analyses reveal that in the Cenozoic,there were at least two phases of tectonic stress field changes,which played vital role in the formation and evolution of the Layzhouwan Sag.One occurred during Sha3 period(about 40Ma)and the other between Paleogene and Neogene(about 20Ma).The former was coupled with another tectonic event,the Tan-Lu Fault's slip reversal from left lateral to right lateral,and it implies that both of them may have some geodynamical relationship.Analysis of type of the basin indicates that the Laizhouwan Sag is not a typical right-lateral strike-slip pull-apart basin,but a rifted basin controlled mainly by the extensional regime affected by the strike-slip.It is likely that the basin was affected by the left-lateral strike-slip before Sha3 period,and then was reformed into rifted and depression basin under the influence of right-lateral strike-slip.Integrated study shows that evolution of the Laizhouwan Sag in Cenozoic can be divided into four stages:rifted stage(from Kongdian period to Sha3 period),rifting-depression stage(from Sha 2 period to Dongying period),post-rift depression stage(from Dong 1 period to Guantao period),and neotectonism-related post-rift depression stage(from Minghuazhen period to now).
引文
蔡东升.1999.渤海断裂构造演化对成油体系及油气富集规律的控制和影响作用.中国海洋石油研究中心渤海研究院.
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陈嘉树.1993.济阳运动的特点及其对济阳坳陷的影响.石油实验地质,15(1):86～99.
程有义,李晓清,汪泽成,唐泽伟.2004.潍北拉分盆地形成演化及其对成油气条件的控制.石油勘探与开发,31(6):32～35.
池英柳.2001.渤海新生代含油气系统基本特征与油气分布规律.中国海上油气(地质),15(1):3～10.
龚再升,蔡东升,张功成.2007.郯庐断裂对渤海海域东部油气成藏的控制作用.石油学报,28(4):1～10.
龚再升,王国纯,贺清.2000.上第三系是渤中坳陷及其周围油气勘探的主要领域.中国海上油气(地质),14(3):145～156.
韩文功,季建清,王金铎,于建国,张新钰,余绍立.2005.郯庐断裂带古新世—早始新世左旋走滑活动的反射地震证据.自然科学进展,15(11):1383～1388.
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李理,钟大赉,时秀朋.2007.鲁西隆起和济阳坳陷新生代隆坳耦合关系.地质学报,81(9):1215～1228.
李理,钟大赉.2006.泰山新生代抬升的裂变径迹证据.岩石学报,22(2):457～464.
李晓清,汪泽成,程有义.2003.拉分盆地分析与含油气性——以潍北盆地为例.东营:石油大学出版社,1～120.
刘池洋,赵红格,张参,王建强.2009.青藏-喜马拉雅构造域演化的转折时期.地学前缘,16(4):1～12.
刘池洋.1997.含油气盆地沉积-沉降中心迁移的形成机制探讨.见:王宜林编.第五届全国沉积学及岩相古地理学学术会议论文集.乌鲁木齐:新疆科技卫生出版社,275～278.
任建业,于建国,张俊霞.2009.济阳坳陷深层构造及其对中新生代盆地发育的控制作用.地学前缘,16(4):117～137.
任建业.2004.济阳坳陷新生代褶皱-冲断构造的厘定及其动力学背景分析.地质科技情报,23(3):l～5.
史卜庆,吴智平,王纪祥,周瑶琪,戴启德.1999.渤海湾盆地东营运动的特征及成因分析.石油实验地质,21(3):196～200.
汤良杰,万桂梅,周心怀,金文正,余一欣.2008.渤海盆地新生代构造演化特征.高校地质学报,14(2):191～198.
童亨茂,宓荣三,于天才,刘宝鸿,孟令箭,杨景勇.2008.渤海湾盆地辽河西部凹陷的走滑构造作用.地质学报,82(8):1017～1026.
万天丰,朱鸿.1996.郯庐断裂带的最大左行走滑断距及其形成时期.高校地质学报,2(1):14～27.
王国纯.1998.郯庐断裂与渤海海域反转构造及花状构造.中国海上油气(地质),12(9):289～295.
王小凤,李中坚,陈柏林,陈宣华,董树文,张青.2000.郯庐断裂带.北京:地质出版社,1～222.
王振兰,王金铎,季建清,韩文功,于建国,张新钰.2008.鲁西隆起与济阳坳陷箕状断陷形成时代研究.石油学报,29(2):206～212.
吴时国,余朝华,邹东波,张海英.2006.莱州湾地区郯庐断裂带的构造特征及其新生代演化.海洋地质与第四纪地质,16(6):102～110.
余一欣,周心怀,汤良杰,彭文绪,吕丁友,王应斌.2008.渤海海域莱州湾凹陷KL11-2地区盐构造特征.地质学报,82(6):731～737.
朱光,宋传中,王道轩,刘国生,徐嘉伟.2001.郯庐断裂带走滑时代的40Ar/39Ar年代学研究及其构造意义.中国科学(D辑),31(3):250～256.
Ben-Avraham Z,Zoback M D.1992.Transform-normal extensionand asymmetric basins:an alternative to pul1-apart model.Geology,20:423～42.
Hsiao L Y,Graham S A,Tilander N.2004.Seismic reflectionimaging of a major strike-slip fault zone in a rift system:Paleogene structure and evolution of the Tan-Lu fault system,Liaodong Bay,Bohai,offshore China.AAPG bulletin,88(1):71～97.
Jolivet L P,Davy P,Cobbold P.1990.Right-lateral shear along thenorthwest Pacific margin and the India-Eurasia collision.Tectonics,9(6):1409～1419.
Jolivet L,Tamaki K,Fournier M.l994.Japan Sea,opening historyand mechanism:A synthesis.Journal Geophysical Research,99:22237～22259.
Northrup C J,Royden L H,Burchfiel B C.1995.Motion of thePacific plate relative to Eurasia and its potential relation toCenozoic extension along the easternmargin of Eurasia.Geology,23(8):719～722.
Patriat P,Achache J.1984.India Eurasia collision chronology hasimplications for crustal shortening and driving mechanism ofplates.Nature.31l:615～621.
蔡东升,罗毓晖,姚长华.2001.渤海莱州湾走滑拉分凹陷的构造研究及其石油勘探意义.石油学报,22(2):19～25.
陈嘉树.1993.济阳运动的特点及其对济阳坳陷的影响.石油实验地质,15(1):86～99.
程有义,李晓清,汪泽成,唐泽伟.2004.潍北拉分盆地形成演化及其对成油气条件的控制.石油勘探与开发,31(6):32～35.
池英柳.2001.渤海新生代含油气系统基本特征与油气分布规律.中国海上油气(地质),15(1):3～10.
龚再升,蔡东升,张功成.2007.郯庐断裂对渤海海域东部油气成藏的控制作用.石油学报,28(4):1～10.
龚再升,王国纯,贺清.2000.上第三系是渤中坳陷及其周围油气勘探的主要领域.中国海上油气(地质),14(3):145～156.
韩文功,季建清,王金铎,于建国,张新钰,余绍立.2005.郯庐断裂带古新世—早始新世左旋走滑活动的反射地震证据.自然科学进展,15(11):1383～1388.
侯贵廷,钱祥麟,蔡东升.2001.渤海湾盆地中、新生代构造演化研究.北京大学学报(自然科学版),37(6):845～851.
李理,钟大赉,时秀朋.2007.鲁西隆起和济阳坳陷新生代隆坳耦合关系.地质学报,81(9):1215～1228.
李理,钟大赉.2006.泰山新生代抬升的裂变径迹证据.岩石学报,22(2):457～464.
李晓清,汪泽成,程有义.2003.拉分盆地分析与含油气性——以潍北盆地为例.东营:石油大学出版社,1～120.
刘池洋,赵红格,张参,王建强.2009.青藏-喜马拉雅构造域演化的转折时期.地学前缘,16(4):1～12.
刘池洋.1997.含油气盆地沉积-沉降中心迁移的形成机制探讨.见:王宜林编.第五届全国沉积学及岩相古地理学学术会议论文集.乌鲁木齐:新疆科技卫生出版社,275～278.
任建业,于建国,张俊霞.2009.济阳坳陷深层构造及其对中新生代盆地发育的控制作用.地学前缘,16(4):117～137.
任建业.2004.济阳坳陷新生代褶皱-冲断构造的厘定及其动力学背景分析.地质科技情报,23(3):l～5.
史卜庆,吴智平,王纪祥,周瑶琪,戴启德.1999.渤海湾盆地东营运动的特征及成因分析.石油实验地质,21(3):196～200.
汤良杰,万桂梅,周心怀,金文正,余一欣.2008.渤海盆地新生代构造演化特征.高校地质学报,14(2):191～198.
童亨茂,宓荣三,于天才,刘宝鸿,孟令箭,杨景勇.2008.渤海湾盆地辽河西部凹陷的走滑构造作用.地质学报,82(8):1017～1026.
万天丰,朱鸿.1996.郯庐断裂带的最大左行走滑断距及其形成时期.高校地质学报,2(1):14～27.
王国纯.1998.郯庐断裂与渤海海域反转构造及花状构造.中国海上油气(地质),12(9):289～295.
王小凤,李中坚,陈柏林,陈宣华,董树文,张青.2000.郯庐断裂带.北京:地质出版社,1～222.
王振兰,王金铎,季建清,韩文功,于建国,张新钰.2008.鲁西隆起与济阳坳陷箕状断陷形成时代研究.石油学报,29(2):206～212.
吴时国,余朝华,邹东波,张海英.2006.莱州湾地区郯庐断裂带的构造特征及其新生代演化.海洋地质与第四纪地质,16(6):102～110.
余一欣,周心怀,汤良杰,彭文绪,吕丁友,王应斌.2008.渤海海域莱州湾凹陷KL11-2地区盐构造特征.地质学报,82(6):731～737.
朱光,宋传中,王道轩,刘国生,徐嘉伟.2001.郯庐断裂带走滑时代的40Ar/39Ar年代学研究及其构造意义.中国科学(D辑),31(3):250～256.
Ben-Avraham Z,Zoback M D.1992.Transform-normal extensionand asymmetric basins:an alternative to pul1-apart model.Geology,20:423～42.
Hsiao L Y,Graham S A,Tilander N.2004.Seismic reflectionimaging of a major strike-slip fault zone in a rift system:Paleogene structure and evolution of the Tan-Lu fault system,Liaodong Bay,Bohai,offshore China.AAPG bulletin,88(1):71～97.
Jolivet L P,Davy P,Cobbold P.1990.Right-lateral shear along thenorthwest Pacific margin and the India-Eurasia collision.Tectonics,9(6):1409～1419.
Jolivet L,Tamaki K,Fournier M.l994.Japan Sea,opening historyand mechanism:A synthesis.Journal Geophysical Research,99:22237～22259.
Northrup C J,Royden L H,Burchfiel B C.1995.Motion of thePacific plate relative to Eurasia and its potential relation toCenozoic extension along the easternmargin of Eurasia.Geology,23(8):719～722.
Patriat P,Achache J.1984.India Eurasia collision chronology hasimplications for crustal shortening and driving mechanism ofplates.Nature.31l:615～621.
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