• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

What controls the thrust vergence in subduction zones? - Acquiring insights from lubrication-model-enhanced numerical sandbox experiments

Publicly Offered Research

Project AreaScience of Slow to Fast Earthquakes
Project/Area Number 24H01044
Research Category

Grant-in-Aid for Transformative Research Areas (A)

Allocation TypeSingle-year Grants
Review Section Transformative Research Areas, Section (II)
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

CHEN JIAN  国立研究開発法人海洋研究開発機構, 付加価値情報創生部門(数理科学・先端技術研究開発センター), 主任研究員 (20640931)

Project Period (FY) 2024-04-01 – 2026-03-31
Project Status Granted (Fiscal Year 2025)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2025: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2024: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordssubduction zones / thrust vergence / DEM simulation / numerical sandbox / lubrication model
Outline of Research at the Start

Accretionary wedges exhibit complex deformation structures, and recent studies suggest a correlation between landward-vergent thrust faults and shallow earthquakes in subduction zones. Sandboxes can simulate the subduction process and exhibit thrusts similar to those observed. This study aims to elucidate the mechanisms controlling fault vergence in accretionary wedges based on numerical sandbox experiments. The synthesis of simulation results with field observations will provide insights into the first-order controls on vergence patterns.

URL: 

Published: 2024-04-05   Modified: 2025-06-20  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi