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南海东部俯冲系统分段性及相关盆地群成盆动力学机制

薛友辰 李三忠 刘鑫 索艳慧 戴黎明 余珊 赵淑娟 王鹏程 熊莉娟 安慧婷 程世秀 王霄飞 马云

薛友辰, 李三忠, 刘鑫, 索艳慧, 戴黎明, 余珊, 赵淑娟, 王鹏程, 熊莉娟, 安慧婷, 程世秀, 王霄飞, 马云. 南海东部俯冲系统分段性及相关盆地群成盆动力学机制[J]. 海洋地质与第四纪地质, 2012, 32(6): 129-147. doi: 10.3724/SP.J.1140.2012.06129
引用本文: 薛友辰, 李三忠, 刘鑫, 索艳慧, 戴黎明, 余珊, 赵淑娟, 王鹏程, 熊莉娟, 安慧婷, 程世秀, 王霄飞, 马云. 南海东部俯冲系统分段性及相关盆地群成盆动力学机制[J]. 海洋地质与第四纪地质, 2012, 32(6): 129-147. doi: 10.3724/SP.J.1140.2012.06129
XUE Youchen, LI Sanzhong, LIU Xin, SUO Yanhui, DAI Liming, YU Shan, ZHAO Shujuan, WANG Pengcheng, XIONG Lijuan, AN Huiting, CHENG Shixiu, WANG Xiaofei, MA Yun. SEGMENTATION OF SUBDUCTION SYSTEM IN THE EASTERN SOUTH CHINA SEA AND DYNAMICS OF RELATED BASIN GROUPS[J]. Marine Geology & Quaternary Geology, 2012, 32(6): 129-147. doi: 10.3724/SP.J.1140.2012.06129
Citation: XUE Youchen, LI Sanzhong, LIU Xin, SUO Yanhui, DAI Liming, YU Shan, ZHAO Shujuan, WANG Pengcheng, XIONG Lijuan, AN Huiting, CHENG Shixiu, WANG Xiaofei, MA Yun. SEGMENTATION OF SUBDUCTION SYSTEM IN THE EASTERN SOUTH CHINA SEA AND DYNAMICS OF RELATED BASIN GROUPS[J]. Marine Geology & Quaternary Geology, 2012, 32(6): 129-147. doi: 10.3724/SP.J.1140.2012.06129

南海东部俯冲系统分段性及相关盆地群成盆动力学机制


doi: 10.3724/SP.J.1140.2012.06129
详细信息
    作者简介:

    薛友辰(1988-),女,硕士生,从事海洋地质与构造地质研究

  • 基金项目:

    山东省自然科学基金项目

    中国海洋大学中央高校财政专项

  • 中图分类号: P736.1

SEGMENTATION OF SUBDUCTION SYSTEM IN THE EASTERN SOUTH CHINA SEA AND DYNAMICS OF RELATED BASIN GROUPS

More Information
  • 摘要: 南海东部位于欧亚板块和太平洋板块(菲律宾海板块)的汇聚地带,该区域东侧为马尼拉俯冲带、吕宋岛弧和东吕宋-菲律宾俯冲带,构成对倾的沟-弧-盆体系,本文称为俯冲系统。该系统具有明显的分段性,表现为地貌、地震、火山、断裂、盆地和地球物理特征等方面都具有明显差异,以巴布延走滑断裂和锡布延走滑断裂为界,可划分为北、中、南三段。其北段受台湾造山带碰撞挤压的影响,台湾造山带西侧的北港隆起对菲律宾海板块NWW向的楔入产生阻碍作用,导致南海东北部陆块挤出,产生了台西南盆地、台西盆地、笔架南盆地等,是紧密相关的一系列碰撞-楔入-挤出构造。中段受南海死亡的洋中脊俯冲过程中形成的"板片窗"影响,使得该段的地震、岩浆活动、地貌特征和应力状态等存在南北方向上的差异,产生的一系列盆地受弧内走滑断裂调节。南段受菲律宾海板块向西俯冲作用的控制,紧邻该俯冲带地震和火山强烈;但西侧受南沙地块(巴拉望地块)的阻挡作用,在菲律宾群岛中部的菲律宾大断裂的调节作用下,导致马尼拉海沟平面上发生弯曲,该段西侧地震和火山活动性减弱。分布在该段的盆地是在不同性质的地块碎片碰撞的基础上,受后期走滑断裂的调节拉分作用,呈现现今的盆地分布格局。总之,南海东部俯冲系统的南、北分别受菲律宾海板块NWW向楔入和西向俯冲影响,而南海海盆沿马尼拉海沟向东的俯冲对该俯冲系统中段的构造演化起了主导作用。
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  • 收稿日期:  2012-09-30
  • 修回日期:  2012-12-20

南海东部俯冲系统分段性及相关盆地群成盆动力学机制

doi: 10.3724/SP.J.1140.2012.06129
    作者简介:

    薛友辰(1988-),女,硕士生,从事海洋地质与构造地质研究

基金项目:

山东省自然科学基金项目

中国海洋大学中央高校财政专项

  • 中图分类号: P736.1

摘要: 南海东部位于欧亚板块和太平洋板块(菲律宾海板块)的汇聚地带,该区域东侧为马尼拉俯冲带、吕宋岛弧和东吕宋-菲律宾俯冲带,构成对倾的沟-弧-盆体系,本文称为俯冲系统。该系统具有明显的分段性,表现为地貌、地震、火山、断裂、盆地和地球物理特征等方面都具有明显差异,以巴布延走滑断裂和锡布延走滑断裂为界,可划分为北、中、南三段。其北段受台湾造山带碰撞挤压的影响,台湾造山带西侧的北港隆起对菲律宾海板块NWW向的楔入产生阻碍作用,导致南海东北部陆块挤出,产生了台西南盆地、台西盆地、笔架南盆地等,是紧密相关的一系列碰撞-楔入-挤出构造。中段受南海死亡的洋中脊俯冲过程中形成的"板片窗"影响,使得该段的地震、岩浆活动、地貌特征和应力状态等存在南北方向上的差异,产生的一系列盆地受弧内走滑断裂调节。南段受菲律宾海板块向西俯冲作用的控制,紧邻该俯冲带地震和火山强烈;但西侧受南沙地块(巴拉望地块)的阻挡作用,在菲律宾群岛中部的菲律宾大断裂的调节作用下,导致马尼拉海沟平面上发生弯曲,该段西侧地震和火山活动性减弱。分布在该段的盆地是在不同性质的地块碎片碰撞的基础上,受后期走滑断裂的调节拉分作用,呈现现今的盆地分布格局。总之,南海东部俯冲系统的南、北分别受菲律宾海板块NWW向楔入和西向俯冲影响,而南海海盆沿马尼拉海沟向东的俯冲对该俯冲系统中段的构造演化起了主导作用。

English Abstract

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