庙西凹陷构造特征
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摘要
庙西凹陷位于渤中坳陷东南部,由北洼、东洼、南洼3个次级构造单元组成。地震构造解释和断裂系统分析表明:庙西凹陷北洼和东洼分别由2个箕状断陷构成,南洼北部为地堑构造,南洼南部为箕状断陷;各次洼受到郯庐断裂带的影响不同,北洼、东洼受到伸展构造系统的影响,南洼则明显受到郯庐断裂带的改造。3个次洼内部的伸展断裂受深层走滑断裂所诱发,构成走滑构造系统的一部分,浅层受张家口—蓬莱断裂带改造。
Miaoxi Sag is located in the southeast of Bohai Bay,and it is made up by the North subsag,the East subsag and the South subsag.The seismic interpretation and fracture analysis show that the North subsag and East subsag is respectively constituted by two dustpan-shaped fault depression,it is graben structure in the north of South subsag,and dustpan-shaped fault depression in the south.The influences of Tan-Lu fault zone on each subsag are different.The North subsag and East subsag are influenced by extended tectonic system,and the South subsag is influenced by Tan-Lu fault.The extended faults in the three subsags are caused by the strike-slip faults,constituting a part of strike-slip tectonic system,and the shallow faults are transformed by Zhangjiakou-Penglai fault zone.
Miaoxi Sag is located in the southeast of Bohai Bay,and it is made up by the North subsag,the East subsag and the South subsag.The seismic interpretation and fracture analysis show that the North subsag and East subsag is respectively constituted by two dustpan-shaped fault depression,it is graben structure in the north of South subsag,and dustpan-shaped fault depression in the south.The influences of Tan-Lu fault zone on each subsag are different.The North subsag and East subsag are influenced by extended tectonic system,and the South subsag is influenced by Tan-Lu fault.The extended faults in the three subsags are caused by the strike-slip faults,constituting a part of strike-slip tectonic system,and the shallow faults are transformed by Zhangjiakou-Penglai fault zone.
引文
[1]赵静强.渤海湾盆地庙西凸起评价.中国海洋石油勘探开发研究中心,1998.
[1]龚再升,王国纯.渤海新构造运动控制晚期油气成藏[J].石油学报,2001,22(2):1-8.
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[3]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.
[4]郝芳,金之均,邹华耀,等.超压盆地生烃作用动力学与油气成藏机理[M].北京:科学出版社,2005:287-291.
[5]孙洪斌,张凤莲.辽河坳陷古近系构造-沉积演化特征[J].岩性油气藏,2008,20(2):60-65.
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[8]徐杰,牛嘉玉,吕悦军,等.营口—潍坊断裂带的新构造和新构造活动[J].石油学报,2009,30(4):498-505.
[9]王芝尧,苏俊青,钱茂路,等.走滑断裂作用对油气成藏的控制——以歧口凹陷新生代断裂为例[J].岩性油气藏,2011,23(4):35-40.
[10]甘学启,秦启荣,苏培东,等.左旋走滑对十屋油田构造形态的影响及石油地质意义[J].岩性油气藏,2011,23(3):40-43.
[11]彭文旭,辛仁臣,孙和风,等.渤海海域莱州湾凹陷的形成和演化[J].石油学报,2009,30(5):654-660.
[1]龚再升,王国纯.渤海新构造运动控制晚期油气成藏[J].石油学报,2001,22(2):1-8.
[2]李三忠,王金铎,刘建忠,等.鲁西地块中生代构造格局及其形成背景[J].地质学报,2005,79(4):487-497.
[3]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.
[4]郝芳,金之均,邹华耀,等.超压盆地生烃作用动力学与油气成藏机理[M].北京:科学出版社,2005:287-291.
[5]孙洪斌,张凤莲.辽河坳陷古近系构造-沉积演化特征[J].岩性油气藏,2008,20(2):60-65.
[6]漆家福.渤海湾新生代盆地的两种构造系统及其成因解释[J].中国地质,2004,31(1):15-22.
[7]朱伟林,米立军,龚再升,等.渤海海域油气成藏与勘探[M].北京:科学出版社,2009:307-311.
[8]徐杰,牛嘉玉,吕悦军,等.营口—潍坊断裂带的新构造和新构造活动[J].石油学报,2009,30(4):498-505.
[9]王芝尧,苏俊青,钱茂路,等.走滑断裂作用对油气成藏的控制——以歧口凹陷新生代断裂为例[J].岩性油气藏,2011,23(4):35-40.
[10]甘学启,秦启荣,苏培东,等.左旋走滑对十屋油田构造形态的影响及石油地质意义[J].岩性油气藏,2011,23(3):40-43.
[11]彭文旭,辛仁臣,孙和风,等.渤海海域莱州湾凹陷的形成和演化[J].石油学报,2009,30(5):654-660.
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