Modeling of deformation and tectonic loading processes in the island arc crust : toward understanding the mechanisms of large inland earthquakes

岛弧地壳变形和构造加载过程的模拟：了解大型内陆地震的机制

• 批准号: 21540443
• 负责人: SHIBAZAKI Bunichiro
• 金额: $ 2.66万
• 依托单位: Building Research Institute
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21540443/
• 关键词: 固体地球物理学; モデル化; 内陸地震; 島弧地殻; 応力蓄積

For understanding generation processes of large inland earthquakes, we investigate the tectonic loading processes due to internal inelastic deformation and faulting processes in the island arc crust and uppermost mantle. The internal deformation and faulting processes are controlled by the non-uniform rheological structures in the island arc crust and uppermost mantle. The present study developed 3D numerical models by a finite element method for the deformation and faulting processes in the crust along the Ou Backbone range, NE Japan, and some other regions, by considering the non-uniform rheological structures due to thermal structure.

为了认识内陆大地震的发生过程，我们研究了岛弧地壳和上地幔内部非弹性变形和断裂作用引起的构造加载过程。岛弧地壳和上地幔的非均匀流变结构控制着岛弧内部的变形和断裂过程。考虑热构造引起的非均匀流变结构，采用有限元方法建立了日本东北缘欧主干带等地区地壳变形和断裂过程的三维数值模型。

项目成果

Modeling of Fault Development and Tectonic Loading Processes Considering the Non-uniform Thermal Structure in Northeastern Japan

考虑日本东北部不均匀热结构的断层发育和构造加载过程模拟

• 发表时间: 2011
• 作者: Shibazaki;B.、Okada;T.;Yoshida;T.;Matsumoto;M.;Muto;J.
• 通讯作者: J.

Modeling of fault development and tectonic loading processes for large inland earthquakes around the Backbone Range

骨干山脉周围大型内陆地震的断层发育和构造加载过程建模

• 发表时间: 2010
• 作者: Shibazaki;B.
• 通讯作者: B.

地溝帯構造を考慮した中越地域における断層形成過程のモデル化

考虑裂谷结构的中越地区断层形成过程模拟

• 发表时间: 2009
• 作者: 芝崎文一郎;加藤愛太郎
• 通讯作者: 加藤愛太郎

3D modeling of faulting around the Ou Backbone Range : implication for tectonic loading in the 2008 Iwate-Miyagi inland earthquake

奥羽主干山脉周围断层的 3D 建模：对 2008 年岩手宫城内陆地震构造载荷的影响

• 发表时间: 2010
• 作者: Shibazaki;B.
• 通讯作者: B.

Numerical Model for the Development of Complex Fault Configuration in the Mid-Niigata Region by Considering an Ancient Rift Structure

考虑古裂谷构造的新泻中部地区复杂断层配置发育的数值模型

• 发表时间: 2009
• 作者: Shibazaki;B.;A.Kato
• 通讯作者: A.Kato