The global consequences of subduction zone congestion

俯冲带拥塞的全球后果

• 批准号: DP150102887
• 负责人: Prof Louis Moresi
• 金额: $ 49.21万
• 依托单位: The Australian National University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-01-01 至 2023-06-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP150102887
• 关键词: global; consequences; subduction; zone; congestion

This project will use a combination of 3D geodynamic modelling, plate kinematic reconstruction and geological and geophysical synthesis to determine how congested subduction zones influence plate kinematics, subduction dynamics and tectonic evolution at orogen and global scales. The project aims to deliver a transformation change in understanding the links between congested subduction, mantle flow, trench migration, crustal growth, transitions between stable convergent margin configurations and deformation in the overriding plates of subduction zones. Determining these relationships is significant because it will provide dynamic context to interpret the geological record of ancient convergent margins, which host a large percentage of Earth's metal resources.

该项目将结合使用 3D 地球动力学建模、板块运动学重建以及地质和地球物理综合，以确定拥挤的俯冲带如何影响造山带和全球尺度的板块运动学、俯冲动力学和构造演化。该项目旨在实现对拥挤俯冲、地幔流、海沟迁移、地壳生长、稳定会聚边缘结构之间的过渡以及俯冲带上覆板块变形之间联系的转变。确定这些关系非常重要，因为它将提供动态背景来解释古代聚合边缘的地质记录，这些边缘蕴藏着地球上很大一部分金属资源。