珠江口盆地坡折带特征及其对沉积体系的控制
|
摘要
本文基于对覆盖全区的二维地震资料研究,在珠江口盆地识别出了大型的陆架坡折及多种小型坡折带,包括侵蚀坡折带、沉积坡折带、断裂坡折带和挠曲坡折带。不同的构造背景发育了不同的坡折带类型。自30Ma年以来,坡折带总体呈向北迁移的趋势。古近纪-早中新世中期以各种小型坡折带为主,主要控制三角洲及扇三角洲等浅水沉积的展布;早中新世中期至今,由于陆架-陆坡体系已形成,坡折带以陆架坡折为主,控制了陆架边缘三角洲及海底扇等较深水沉积的发育。
The Pearl River Mouth Basin is an important petroleum base in the South China Sea.A number of shelf breaks have been distinguished for the depositional systems in the Pearl River Mouth Basin on the basis of 2-D seismic data throughout the whole area,including erosional,sedimentary,fault and flexure slope break zones.These slope break zones have generally migrated northwards since 30 Ma.During the Palaeogene to the middle stage of early Miocene,the small-sized slope break zones predominated,and once had an important effect on the delta and fan delta shallow-water deposits.From the middle stage of early Miocene onwards,the continental shelf break zones have been accentuated,and have exerted the influence on the shelf-margin delta and submarine fan deep-water deposits.
The Pearl River Mouth Basin is an important petroleum base in the South China Sea.A number of shelf breaks have been distinguished for the depositional systems in the Pearl River Mouth Basin on the basis of 2-D seismic data throughout the whole area,including erosional,sedimentary,fault and flexure slope break zones.These slope break zones have generally migrated northwards since 30 Ma.During the Palaeogene to the middle stage of early Miocene,the small-sized slope break zones predominated,and once had an important effect on the delta and fan delta shallow-water deposits.From the middle stage of early Miocene onwards,the continental shelf break zones have been accentuated,and have exerted the influence on the shelf-margin delta and submarine fan deep-water deposits.
引文
[1]VAIL P R,MITCHUM R M,TODD R G et al.Seismicstratigraphy and global changes of sea level[A].Payton C E.Seismic stratigraphy-application of hydrocarbon exploration[C].Tulsa:AAPG Publishing Bureau,AAPG Memoir 26,1977.49-212.
[2]VAN WAGONER L C,POSAMENTIER H W,MITCHUM R M etal.An overview of the fundamentals of sequence stratigraphy andkey definitions[A].Wilgus C K.Sea-Level Changes:AnIntegrated Approach[C].Tulsa:SEPM Special Publication No.42,1988.
[3]林畅松,潘元林,肖建新,等.“构造坡折带”-断陷盆地层序分析和油气预测的重要概念[J].地球科学,2000,25(3):260-265.
[4]王英民,金武弟,刘书会,等.断陷湖盆多级坡折带的成因类型、展布及其勘探意义[J].石油与天然气地质,2003,24(3):199-214.
[5]庞雄,申俊,袁立忠,等.南海珠江深水扇系统及其油气勘探前景[J].石油学报,2006,27(3):11-15.
[6]姚伯初,万玲,刘振湖.南海海域新生代沉积盆地构造演化的动力学特征及其油气资源[J].地球科学—中国地质大学学报,2004,29(5):543-549.
[7]钟建强.珠江口盆地的构造特征与盆地演化[J].海洋湖沼通报,1994,29(1):1-8.
[8]陈长民,施和生,许仕策,等.珠江口盆地(东部)第三系油气藏形成条件[M].北京:科学出版社,2003.1-121.
[9]代一丁,庞雄.珠江口盆地珠二凹陷的石油地质特征[J].中国海上油气(地质),1999,13(3):169-180.
[10]朱伟林,张功成,等.南海北部大陆边缘盆地油气地质特征与勘探方向[J].石油学报,2008,19(1):1-9.
[11]樊太亮,李卫东.层序地层应用于陆相油藏预测的成功实例[J].石油学报,1999,20(2):12-17.
[12]黎明碧,金翔龙,李家彪,等.南海中北部中新世陆坡凹陷沉积充填与古陆坡形态演变[J].海洋学报,2005,27(3):73-78.
[13]庞雄,陈长民,邵磊,等.白云运动:南海北部渐新统—中新统重大地质事件及其意义[J].地质论评,2007,53(2):145-152.
[2]VAN WAGONER L C,POSAMENTIER H W,MITCHUM R M etal.An overview of the fundamentals of sequence stratigraphy andkey definitions[A].Wilgus C K.Sea-Level Changes:AnIntegrated Approach[C].Tulsa:SEPM Special Publication No.42,1988.
[3]林畅松,潘元林,肖建新,等.“构造坡折带”-断陷盆地层序分析和油气预测的重要概念[J].地球科学,2000,25(3):260-265.
[4]王英民,金武弟,刘书会,等.断陷湖盆多级坡折带的成因类型、展布及其勘探意义[J].石油与天然气地质,2003,24(3):199-214.
[5]庞雄,申俊,袁立忠,等.南海珠江深水扇系统及其油气勘探前景[J].石油学报,2006,27(3):11-15.
[6]姚伯初,万玲,刘振湖.南海海域新生代沉积盆地构造演化的动力学特征及其油气资源[J].地球科学—中国地质大学学报,2004,29(5):543-549.
[7]钟建强.珠江口盆地的构造特征与盆地演化[J].海洋湖沼通报,1994,29(1):1-8.
[8]陈长民,施和生,许仕策,等.珠江口盆地(东部)第三系油气藏形成条件[M].北京:科学出版社,2003.1-121.
[9]代一丁,庞雄.珠江口盆地珠二凹陷的石油地质特征[J].中国海上油气(地质),1999,13(3):169-180.
[10]朱伟林,张功成,等.南海北部大陆边缘盆地油气地质特征与勘探方向[J].石油学报,2008,19(1):1-9.
[11]樊太亮,李卫东.层序地层应用于陆相油藏预测的成功实例[J].石油学报,1999,20(2):12-17.
[12]黎明碧,金翔龙,李家彪,等.南海中北部中新世陆坡凹陷沉积充填与古陆坡形态演变[J].海洋学报,2005,27(3):73-78.
[13]庞雄,陈长民,邵磊,等.白云运动:南海北部渐新统—中新统重大地质事件及其意义[J].地质论评,2007,53(2):145-152.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心