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    南海南部深地震探测及南北共轭陆缘对比

    赵明辉 丘学林 徐辉龙 夏少红 吴振利 李家彪

    赵明辉, 丘学林, 徐辉龙, 夏少红, 吴振利, 李家彪, 2011. 南海南部深地震探测及南北共轭陆缘对比. 地球科学, 36(5): 823-830. doi: 10.3799/dqkx.2011.085
    引用本文: 赵明辉, 丘学林, 徐辉龙, 夏少红, 吴振利, 李家彪, 2011. 南海南部深地震探测及南北共轭陆缘对比. 地球科学, 36(5): 823-830. doi: 10.3799/dqkx.2011.085
    ZHAO Ming-hui, QIU Xue-lin, XU Hui-long, XIA Shao-hong, WU Zhen-li, LI Jia-biao, 2011. Deep Seismic Surveys in the Southern South China Sea and Contrast on Its Conjugate Margins. Earth Science, 36(5): 823-830. doi: 10.3799/dqkx.2011.085
    Citation: ZHAO Ming-hui, QIU Xue-lin, XU Hui-long, XIA Shao-hong, WU Zhen-li, LI Jia-biao, 2011. Deep Seismic Surveys in the Southern South China Sea and Contrast on Its Conjugate Margins. Earth Science, 36(5): 823-830. doi: 10.3799/dqkx.2011.085

    南海南部深地震探测及南北共轭陆缘对比

    doi: 10.3799/dqkx.2011.085
    基金项目: 

    中国科学院知识创新工程重要方向项目群项目 KZCX2-YW-Q05-04

    科技部“973”项目 2007CB411701

    国家自然科学基金 41076029

    国家自然科学基金 41074066

    国家自然科学基金 91028002

    广东联合基金重点项目 U0933006

    详细信息
      作者简介:

      赵明辉(1967—), 女,博士, 副研究员, 主要从事海洋地球物理与深部结构研究

      通讯作者:

      徐辉龙, E-mail: hlxu@scsio.ac.cn

    • 中图分类号: P738

    Deep Seismic Surveys in the Southern South China Sea and Contrast on Its Conjugate Margins

    • 摘要: 南海南部最新深地震探测对于南海南北共轭陆缘的对比研究及南海形成演化理论的研究至关重要.以南海深地震探测发展历程和南海南部区域地质地球物理特征为基础, 借鉴世界上典型共轭陆缘对比研究的方法, 结合2009年新获得的两条海底地震仪测线, 指出了南海南部及深海盆深部结构研究的迫切性与重要性, 并提出西南次海盆的深部结构、洋盆中海山的速度结构与属性及南北共轭陆缘张裂体系, 是今后南海形成演化理论问题的重要突破点.

       

    • 图  1  南海深地震测线实施位置

      等深线单位为m; 水深色标同图 3

      Fig.  1.  Deep seismic survey lines in the South China Sea

      图  2  南沙海域深地震探测位置

      红色点为部署的OBS; 灰色点为没有成功回收的OBS; 磁条带、扩张脊及海盆边界数据参考文章Briais et al. (1993)

      Fig.  2.  Deep seismic experiments in the Nansha area of the South China Sea

      图  3  南海重力计算的莫霍面埋深(苏达权, 2002)

      Fig.  3.  The isobaths of Moho discontinuity calculated by gravity data in the South China Sea

      图  4  测线OBS2009-1中OBS33台站综合记录剖面

      折合速度为8 km·s-1;折合时间(Tr) =时间-距离/8.0

      Fig.  4.  Preliminary seismic record section of OBS33 along the line OBS2009-1

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