热带海洋学报 ›› 2026, Vol. 45 ›› Issue (1): 35-43.doi: 10.11978/2025117CSTR: 32234.14.2025117

• 海洋地质学 • 上一篇    下一篇

东印度洋爪哇板块边缘俯冲结构及其对地质灾害的影响

张翠梅1,2(), 张洁3, 孙珍4(), 丁巍伟3, 张江阳1,2, 邱宁1,2, 李付成4, 姜峰4, 赵阳慧3, 蔡佩思5   

  1. 1热带海洋环境与岛礁生态全国重点实验室(中国科学院南海海洋研究所), 广东 广州 511458
    2边缘海与大洋地质实验室(中国科学院南海海洋研究所), 广东 广州 510301
    3海底科学与划界全国重点实验室(自然资源部第二海洋研究所), 浙江 杭州 310012
    4广州海洋地质调查局, 广东 广州 511458
    5中国科学院大学, 北京 100049
  • 收稿日期:2025-07-25 修回日期:2025-08-13 出版日期:2026-01-10 发布日期:2026-01-30
  • 通讯作者: 孙珍。email: sun_zhen2024@126.com
  • 作者简介:

    张翠梅(1981—), 女, 副研究员, 博士, 主要从事海洋盆地构造分析与模拟研究。email:

  • 基金资助:
    国家重点研发计划项目(2023YFF0803402); 国家重点研发计划项目(2024YFB3908104)

Subduction structure and its influence on geological hazards at the Java Plate margin in the eastern Indian Ocean

ZHANG Cuimei1,2(), ZHANG Jie3, SUN Zhen4(), DING Weiwei3, ZHANG Jiangyang1,2, QIU Ning1,2, LI Fucheng4, JIANG Feng4, ZHAO Yanghui3, CHUA Peisi5   

  1. 1State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 511458, China
    2Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
    3State Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
    4Guangzhou Marine Geological Survey, Guangzhou 511458, China
    5University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2025-07-25 Revised:2025-08-13 Online:2026-01-10 Published:2026-01-30
  • Contact: SUN Zhen. email: sun_zhen2024@126.com
  • Supported by:
    National Key Research and Development Program of China(2023YFF0803402); National Key Research and Development Program of China(2024YFB3908104)

摘要:

作为活跃的汇聚带, 巽他弧以强震、海啸和火山活动著称, 而目前对东巽他弧板块边缘的关注相对较少。该研究全面梳理了爪哇东至松巴哇岛板块边缘的俯冲洋壳、海沟及增生楔沿走向的变化, 探讨了俯冲板块地形地貌对上覆板块变形的控制, 并揭示了俯冲作用对浅部地质灾害的影响。 结果表明研究区俯冲结构具有显著的分段性, 西部和东部分别受Roo隆起和阿尔戈深海平原俯冲所控制。俯冲板块的海底地貌和结构导致了海沟和弧前区变形不同: Roo隆起俯冲造成侵蚀作用, 形成范围较小的增生楔, 且倾斜坡度大; 深海平原俯冲对应发育宽缓增生楔。无论海山/隆起俯冲或俯冲板块挠曲产生的正断层都可能触发地质灾害的发生。相关结论为理解俯冲增生过程、地震和海啸灾害提供了理论依据。

关键词: 海山俯冲, 地质灾害, 爪哇海沟, 俯冲带, 板块边缘

Abstract:

As an active convergent margin, the Sunda Arc is renowned for its intense seismic activity, tsunamis, and volcanic eruptions, and yet relatively less attention has been paid to its eastern segment. This study describes the along-strike variations of the subducting oceanic crust, trench, and accretionary wedge from eastern Java to Sumbawa Island. It investigates the control of subducting plate topography on the deformation of the overriding plate and reveals the influence of subduction on shallow geological hazards. The results show significant segmentation of the subduction structure in the study area, with the western and eastern parts controlled by the subduction of the Roo Rise and the Argo Abyssal Plain, respectively. The seafloor topography and structures of the subducting plate lead to distinct variations of trench and forearc deformation: the subduction of the Roo Rise results in prominent erosion and the development of a narrow and steeply inclined accretionary wedge, while that of the abyssal plain results in a broad and gently sloping accretionary wedge. Both seamount/rise subduction and normal faulting generated by plate bending may trigger geological hazards. These findings provide a theoretical basis for understanding accretion processes of subduction zones, as well as earthquake and tsunami hazards.

Key words: seamount subduction, geological hazards, Java trench, subduction zone, plate margin

中图分类号: 

  • P542