Subduction zone geodynamics and earthquake processes

俯冲带地球动力学和地震过程

基本信息

  • 批准号:
    RGPIN-2016-03738
  • 负责人:
  • 金额:
    $ 2.62万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2020
  • 资助国家:
    加拿大
  • 起止时间:
    2020-01-01 至 2021-12-31
  • 项目状态:
    已结题

项目摘要

This proposal seeks limited funds to provide partial support for two to three graduate students at any given year over the next five years as part of my research program. The proposed research is designed to understand the works of subduction zones, for which the Cascadia subduction zone off Canada's west coast is a near-home example. The students will study what enables megathrust faults to generate large earthquakes and what makes them creep in slow slip events, how stress is built up and relieved in earthquake cycles to affect the geology of the upper plate, whether and why seismic activities in areas very far apart are physically connected, and so forth. The proposed research addresses fundamental geodynamics, and it helps society to understand what causes seismic and tsunami hazards. Our main method is to use computer modelling to explain global multidisciplinary observations to reveal underlying physical principles. The students are directed to develop geodynamic concepts from large volumes of observations and basic principles, not merely from textbooks and conventional models. With the long-term goal of understanding the geodynamics of subduction margins, especially processes that govern earthquake generation, we will proceed in three interrelated research directions over the next five years. The first direction is to explore the link between earthquake cycle deformation and geological deformation. We need to examine subduction margins around the world and develop models with realistic, although complex, mechanical properties to investigate stress and structural evolution over individual and multiple earthquake cycles. The second direction is to study whether the decoupling of the shallow and harder part the Earth (the lithosphere) and the deeper and softer part (the asthenosphere) can explain seemingly mysterious long-range interactions of regions very far apart, either in the same subduction zone or in different subduction zones. The third direction is to address how temperature and fluids control the slip behaviour of subduction faults, in particular to develop a unified model to explain geophysical conditions for slow slip events and the relation of these events with the part of the fault that generates great earthquakes.
作为我的研究计划的一部分,该提案寻求有限的资金,在未来五年的任何一年为两到三名研究生提供部分支持。拟议的研究旨在了解俯冲带的工作原理,加拿大西海岸附近的卡斯卡迪亚俯冲带就是一个​​离家很近的例子。学生们将研究是什么使巨型逆冲断层能够产生大地震,是什么使它们在慢滑动事件中蠕动,在地震周期中应力如何积聚和释放以影响上板块的地质,相距很远的地区的地震活动是否以及为何物理上相连,等等。拟议的研究涉及基本地球动力学,有助于社会了解地震和海啸灾害的原因。我们的主要方法是利用计算机建模来解释全球多学科观察,揭示潜在的物理原理。学生们被指导从大量的观察和基本原理中发展地球动力学概念,而不仅仅是从教科书和传统模型中。 为了了解俯冲边缘的地球动力学,特别是控制地震产生的过程,我们的长期目标是,在未来五年内,我们将在三个相互关联的研究方向上进行。第一个方向是探索地震周期变形与地质变形之间的联系。我们需要检查世界各地的俯冲边缘,并开发具有真实但复杂的机械特性的模型,以研究单个和多个地震周期的应力和结构演化。第二个方向是研究地球较浅且较硬的部分(岩石圈)与较深和较软的部分(软流圈)的脱钩是否可以解释相距很远的区域(无论是在同一俯冲带还是在不同俯冲带)看似神秘的长程相互作用。第三个方向是解决温度和流体如何控制俯冲断层的滑动行为,特别是开发一个统一的模型来解释慢滑动事件的地球物理条件以及这些事件与产生大地震的断层部分的关系。

项目成果

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Wang, Kelin其他文献

Relationships between woody plants and environmental factors in karst mixed evergreen-deciduous broadleaf forest, southwest China
西南喀斯特常绿落叶阔叶混交林木本植物与环境因子的关系
Effects of the implementation of ecological restoration policies on soil organic carbon storage in a discontinuous soil region
生态修复政策实施对不连续土壤区土壤有机碳储量的影响
Sediment yield is closely related to lithology and landscape properties in heterogeneous karst watersheds
异质岩溶流域产沙量与岩性和景观特征密切相关
  • DOI:
    10.1016/j.jhydrol.2018.10.076
  • 发表时间:
    2019-01-01
  • 期刊:
  • 影响因子:
    6.4
  • 作者:
    Li, Zhenwei;Xu, Xianli;Wang, Kelin
  • 通讯作者:
    Wang, Kelin
Linking bacterial life strategies with soil organic matter accrual by karst vegetation restoration
  • DOI:
    10.1016/j.soilbio.2022.108925
  • 发表时间:
    2022-12-23
  • 期刊:
  • 影响因子:
    9.7
  • 作者:
    Hua, Peilei;Zhang, Wei;Wang, Kelin
  • 通讯作者:
    Wang, Kelin
Allometric Equations for Applying Plot Inventory and Remote Sensing Data to Assess Coarse Root Biomass Energy in Subtropical Forests
应用样地清查和遥感数据评估亚热带森林粗根生物质能的异速生长方程
  • DOI:
    10.1007/s12155-017-9820-0
  • 发表时间:
    2017-06-01
  • 期刊:
  • 影响因子:
    3.6
  • 作者:
    Gou, Mengmeng;Xiang, Wenhua;Wang, Kelin
  • 通讯作者:
    Wang, Kelin

Wang, Kelin的其他文献

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{{ truncateString('Wang, Kelin', 18)}}的其他基金

Geodynamics and earthquakes in subduction zones and lithosphere
俯冲带和岩石圈的地球动力学和地震
  • 批准号:
    RGPIN-2022-03861
  • 财政年份:
    2022
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Discovery Grants Program - Individual
Subduction zone geodynamics and earthquake processes
俯冲带地球动力学和地震过程
  • 批准号:
    RGPIN-2016-03738
  • 财政年份:
    2021
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Discovery Grants Program - Individual
Subduction zone geodynamics and earthquake processes
俯冲带地球动力学和地震过程
  • 批准号:
    RGPIN-2016-03738
  • 财政年份:
    2019
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Discovery Grants Program - Individual
Subduction zone geodynamics and earthquake processes
俯冲带地球动力学和地震过程
  • 批准号:
    RGPIN-2016-03738
  • 财政年份:
    2018
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Discovery Grants Program - Individual
Subduction zone geodynamics and earthquake processes
俯冲带地球动力学和地震过程
  • 批准号:
    RGPIN-2016-03738
  • 财政年份:
    2017
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Discovery Grants Program - Individual
Subduction zone geodynamics and earthquake processes
俯冲带地球动力学和地震过程
  • 批准号:
    RGPIN-2016-03738
  • 财政年份:
    2016
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Discovery Grants Program - Individual
Geodynamics and earthquakes of subduction zones
俯冲带的地球动力学和地震
  • 批准号:
    227412-2011
  • 财政年份:
    2015
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Discovery Grants Program - Individual
Geodynamics and earthquakes of subduction zones
俯冲带的地球动力学和地震
  • 批准号:
    227412-2011
  • 财政年份:
    2014
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Discovery Grants Program - Individual
Geodynamics and earthquakes of subduction zones
俯冲带的地球动力学和地震
  • 批准号:
    227412-2011
  • 财政年份:
    2013
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Discovery Grants Program - Individual
Geodynamics and earthquakes of subduction zones
俯冲带的地球动力学和地震
  • 批准号:
    227412-2011
  • 财政年份:
    2012
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Discovery Grants Program - Individual

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海岸带综合管理与可持续发展模式研究
  • 批准号:
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  • 批准年份:
    2005
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