北部湾盆地涠西南凹陷断裂系统成因的砂箱实验研究及启示
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摘要
北部湾盆地涠西南凹陷的断裂系统十分复杂,为了揭示其成因机制,在三维地震资料构造解析的基础上,应用砂箱物理模拟技术,对涠西南凹陷的形成机制进行了系统研究。结果表明,南北向的"不协调伸展作用实验模型"能够成功地模拟涠西南凹陷晚始新世以来复杂的断裂系统,断裂系统的主体特征在这一实验模型中均得到了很好的再现。涠西南凹陷复杂的断裂系统是在基底先存构造基础之上,在递进变形过程中逐渐形成的,其裂陷期(晚始新世-渐新世)断裂系统是在一个伸展期内形成(南北向伸展)、并非是多期构造叠加变形的结果。这一认识不但能够有效地指导涠西南凹陷三维地震资料的精细构造解释,同时也能够为南海周缘盆地的形成和演化研究提供借鉴。
The fault system of Weixinan Depression in the Beibu-Gulf Basin is very complex. In order to reveal the genetic mechanism, this paper applies sandbox modelling technologies to make a systemic analysis on the formation mechanism of Weixinan Depression fault system on the basis of systematic structural analysis of 3D seismic data. After several physical simulation experiments, the south-north direction experimental model of disharmonic extension can successfully reproduce the complicated fault system of Weixinan Depression, and the major characteristics have clear appearance in this experimental model. The complicated fault system of Weixinan Depression was formed gradually during progressive deformation on the basis of the pre- existed basement structure, and the fault system of main rifting phase (Late Eocene-Oliqocene) was formed just by one extension stage (NS trending), but not the result of multi-stage superimposed deformation. This understanding not only can interpretet the fine structure of 3D seismic data in Weixinan Depression, but also can provide a reference for studying the formation and evolution of the peripheal basins of the South China Sea.
The fault system of Weixinan Depression in the Beibu-Gulf Basin is very complex. In order to reveal the genetic mechanism, this paper applies sandbox modelling technologies to make a systemic analysis on the formation mechanism of Weixinan Depression fault system on the basis of systematic structural analysis of 3D seismic data. After several physical simulation experiments, the south-north direction experimental model of disharmonic extension can successfully reproduce the complicated fault system of Weixinan Depression, and the major characteristics have clear appearance in this experimental model. The complicated fault system of Weixinan Depression was formed gradually during progressive deformation on the basis of the pre- existed basement structure, and the fault system of main rifting phase (Late Eocene-Oliqocene) was formed just by one extension stage (NS trending), but not the result of multi-stage superimposed deformation. This understanding not only can interpretet the fine structure of 3D seismic data in Weixinan Depression, but also can provide a reference for studying the formation and evolution of the peripheal basins of the South China Sea.
引文
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②童亨茂,刘震,孟令箭,等,2006.涠西南凹陷断层系统分析及其与油气成藏关系研究.25-42.
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Gong Zaisheng and Li Sitian.2004.Dynamics of Petroleum Accumulation in the Continental Margin Basin of the northern South China Sea[M],Beijing:Science Press,1-25.(in Chinese)
Li Sitian,Lin Changsong,Zhang Qiming,et al.1998.The dynamic process of episodic fault depression of the Northern South China Sea and tectonic event since10Ma b.p[J].Chinese Science Bulletin,43(8):797-810.
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Lin Changsong,Gao Jinyao,Yu Xiajun,et al.2006.Characteristics of tectonic movement in the northern part of South China Sea during the Cenozoic[J].Acta Oceanologica Sinica,28(4):81-86.(in Chinese with English Abstract)
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McClay K R.1990.Extensional fault system in sedimentary basins;a review of analogue model studies[J].Marine and Petroleum Geology,7(1):53-69.
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Qi Jiafu,Xia Yiping,Yang Qiao,et al.2006.Structural Analysis in the Oil Province[M].Beijin:Petroleum Industry Press,19-25.(in Chinese)
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Tong Hengmao.2003.Plane sandbox modeling of the comeplicated Zhangjuhe faulted block and its implication,the Bohai Bay Basin[J].Geological Review,49(3):305-310.
Tian Zaiyi and Shi Buqing.2002.Geological features and petroleum reservoir formation in Meso-Cenozoic sedimentary basins in China[J].Geotectonica et Metallogenia,26(1):1-5.(in Chinese with English Abstract)
Vendevill B C and Jackson M P.1990.Physical modeling of the growth of extensional and contractional salt tongues on continental slopes[C].AAPG.Bulletin,74(5):985-998.
Yao Bochu.1993.The primary research on tectonic movement of the continental margin of the northern South China Sea in Cenozoic[C].Geological Research on the South China Sea(5th).Wuhan:China University of Geosciences Press,1-12.(in Chinese)
Yan Yi,Xia Bin,Lin Ke,et al.2005.The sedimentary and tectonic evolution of the basins in the north margin of the South China Sea and geodynamic setting[J].Marine Geology&Quaternary Geology,25(2):53-61.(in Chinese with English Abstract)
Zhou Jianxun,Qi Jiafu,Tong Hengmao,et al.1999.The method of sand box analog models in the structure research of basins[M].Beijing:Seismological Press,33-53.(in Chinese)
Zhou Jianxun and Zhou Jiansheng.2006.Deformation mechanism of Cenozoic tectonics in Bohai Bay Basin province:Physical simulation and discussion[J].Science in China(Ser.D,Earth Sciences),36(6):507-519.
Zhang Jian and Wang Jiyang.2000.Characteristics of geodynamic evolution of tectonic expansion in the northern South China Sea[J].Science in China(Ser.D,Earth Sciences),30(6):561-567.
龚在升,李思田.2004.南海北部大陆边缘盆地油气成藏动力学研究[M].北京:科学出版社,1-25.
李思田,林畅松,张启明,等.1998.南海北部大陆边缘盆地幕式裂陷的动力过程及10Ma以来的构造事件[J].科学通报,43(8):797-810.
刘昭蜀,赵焕庭,范时清,等.2002.南海地质[M].科学出版社,1-22.
林长松,高金耀,虞夏军,等.2006.南海北部新生代的构造运动特征[J].海洋学报,28(4):81-86.
陆克政,朱筱敏,漆家福,等.2001.含油气盆地分析[M].东营:石油大学出版社.
漆家福,夏义平,杨桥,等.2006.油区构造解析[M].北京:石油工业出版社,19-49.
童亨茂.1998.伸展盆地复杂断层组合成因新模式[C].北京大学国际地质科学学术研讨会论文集.北京:地震出版社,107-113.
童亨茂.2003.渤海湾盆地张巨河复杂断块区平面砂箱模拟实验及其启示[J].地质论评,49(3):305-310.
田在艺,史卜庆.2002.中国中新生界沉积盆地与油气成藏[J].大地构造与成矿学,26(1):1-5.
姚伯初.1993.南海北部陆缘新生代构造运动初探[C].南海地质研究(五).武汉:中国地质大学出版社,1-12.
闫义,夏斌,林舸,等.2005.南海北缘新生代盆地沉积与构造演化及地球动力学背景[J].海洋地质与第四纪地质,25(2):53-61.
周建勋,漆家福,童亨茂,等.1999.盆地构造研究中的砂箱模拟实验方法[M].北京:地震出版社,33-53.
周建勋,周建生.2006.渤海湾盆地新生代构造变形机制:物理模拟和讨论[J].中国科学(D辑,地球科学),36(6):507-519.
张建,汪集旸.2000.南海北部陆缘带构造扩张的深部地球动力学特征[J].中国科学(D辑,地球科学),30(6):561-567.
②童亨茂,刘震,孟令箭,等,2006.涠西南凹陷断层系统分析及其与油气成藏关系研究.25-42.
①童亨茂,刘震,孟令箭等,2006.12,涠西南凹陷断层系统分析及其与油气成藏关系研究,25-42。
②王华,赵忠新,刘君荣等,2005.6,涠西南凹陷古近系层序地层学及隐蔽油气藏预测研究,20-28。
Gong Zaisheng and Li Sitian.2004.Dynamics of Petroleum Accumulation in the Continental Margin Basin of the northern South China Sea[M],Beijing:Science Press,1-25.(in Chinese)
Li Sitian,Lin Changsong,Zhang Qiming,et al.1998.The dynamic process of episodic fault depression of the Northern South China Sea and tectonic event since10Ma b.p[J].Chinese Science Bulletin,43(8):797-810.
Liu Zhaoshu,Zhao Huanting,Fan Shiqing,et al.2002.The Geology of the South China Sea[M].Science Press,1-22.(in Chinese)
Lin Changsong,Gao Jinyao,Yu Xiajun,et al.2006.Characteristics of tectonic movement in the northern part of South China Sea during the Cenozoic[J].Acta Oceanologica Sinica,28(4):81-86.(in Chinese with English Abstract)
Lu Kezheng,Zhu Xiaomin,Qi Jiafu,et al.2001.Petroliferous Basin Analysis[M].Dongying:China University of Petroleum Press.
McClay K R.1990.Extensional fault system in sedimentary basins;a review of analogue model studies[J].Marine and Petroleum Geology,7(1):53-69.
McClay K R and White M.1995.Analogue models of orthogonal and oblique rifting[J].Marine and Petroleum Geology,12(2):137-152.
Qi Jiafu,Xia Yiping,Yang Qiao,et al.2006.Structural Analysis in the Oil Province[M].Beijin:Petroleum Industry Press,19-25.(in Chinese)
Tong Hengmao.1998.A new genetic model of the complicated fault assemblages in extension basin[C].Proceedings of the International Conferenceon,Geological Sciences Organized in Beijing University.Beijing:Seismological Press,107-113.(in Chinese)
Tong Hengmao.2003.Plane sandbox modeling of the comeplicated Zhangjuhe faulted block and its implication,the Bohai Bay Basin[J].Geological Review,49(3):305-310.
Tian Zaiyi and Shi Buqing.2002.Geological features and petroleum reservoir formation in Meso-Cenozoic sedimentary basins in China[J].Geotectonica et Metallogenia,26(1):1-5.(in Chinese with English Abstract)
Vendevill B C and Jackson M P.1990.Physical modeling of the growth of extensional and contractional salt tongues on continental slopes[C].AAPG.Bulletin,74(5):985-998.
Yao Bochu.1993.The primary research on tectonic movement of the continental margin of the northern South China Sea in Cenozoic[C].Geological Research on the South China Sea(5th).Wuhan:China University of Geosciences Press,1-12.(in Chinese)
Yan Yi,Xia Bin,Lin Ke,et al.2005.The sedimentary and tectonic evolution of the basins in the north margin of the South China Sea and geodynamic setting[J].Marine Geology&Quaternary Geology,25(2):53-61.(in Chinese with English Abstract)
Zhou Jianxun,Qi Jiafu,Tong Hengmao,et al.1999.The method of sand box analog models in the structure research of basins[M].Beijing:Seismological Press,33-53.(in Chinese)
Zhou Jianxun and Zhou Jiansheng.2006.Deformation mechanism of Cenozoic tectonics in Bohai Bay Basin province:Physical simulation and discussion[J].Science in China(Ser.D,Earth Sciences),36(6):507-519.
Zhang Jian and Wang Jiyang.2000.Characteristics of geodynamic evolution of tectonic expansion in the northern South China Sea[J].Science in China(Ser.D,Earth Sciences),30(6):561-567.
龚在升,李思田.2004.南海北部大陆边缘盆地油气成藏动力学研究[M].北京:科学出版社,1-25.
李思田,林畅松,张启明,等.1998.南海北部大陆边缘盆地幕式裂陷的动力过程及10Ma以来的构造事件[J].科学通报,43(8):797-810.
刘昭蜀,赵焕庭,范时清,等.2002.南海地质[M].科学出版社,1-22.
林长松,高金耀,虞夏军,等.2006.南海北部新生代的构造运动特征[J].海洋学报,28(4):81-86.
陆克政,朱筱敏,漆家福,等.2001.含油气盆地分析[M].东营:石油大学出版社.
漆家福,夏义平,杨桥,等.2006.油区构造解析[M].北京:石油工业出版社,19-49.
童亨茂.1998.伸展盆地复杂断层组合成因新模式[C].北京大学国际地质科学学术研讨会论文集.北京:地震出版社,107-113.
童亨茂.2003.渤海湾盆地张巨河复杂断块区平面砂箱模拟实验及其启示[J].地质论评,49(3):305-310.
田在艺,史卜庆.2002.中国中新生界沉积盆地与油气成藏[J].大地构造与成矿学,26(1):1-5.
姚伯初.1993.南海北部陆缘新生代构造运动初探[C].南海地质研究(五).武汉:中国地质大学出版社,1-12.
闫义,夏斌,林舸,等.2005.南海北缘新生代盆地沉积与构造演化及地球动力学背景[J].海洋地质与第四纪地质,25(2):53-61.
周建勋,漆家福,童亨茂,等.1999.盆地构造研究中的砂箱模拟实验方法[M].北京:地震出版社,33-53.
周建勋,周建生.2006.渤海湾盆地新生代构造变形机制:物理模拟和讨论[J].中国科学(D辑,地球科学),36(6):507-519.
张建,汪集旸.2000.南海北部陆缘带构造扩张的深部地球动力学特征[J].中国科学(D辑,地球科学),30(6):561-567.
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