Magmatic response to slab deformation and implications to ore formation

岩浆对板片变形的响应及其对成矿的影响

• 批准号: DP200101566
• 负责人: Prof Gideon Rosenbaum
• 金额: $ 18.88万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2020
• 资助国家: 澳大利亚
• 起止时间: 2020-06-19 至 2023-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP200101566
• 关键词: Magmatic; response; slab; deformation; implications

The uneven distribution of ore deposits in magmatic arcs is poorly understood. This project aims to provide new strategies for more effective mineral targeting by testing the hypothesis that anomalous magmatism enriched in metals reflects particular styles of deformation, such as tears in subducting slabs. We will use geophysical modelling to constrain slab structure along the northern boundary of the Australian plate, and geochemical data to establish spatio-temporal links with anomalous magmatism and ore deposits. By identifying the geochemical fingerprint of tear-related magmatism, outcomes are expected to benefit geoscience research and mineral exploration by providing context to similar rock associations in mineral-rich provinces.

人们对岩浆弧中矿藏的不均匀分布知之甚少。该项目旨在通过检验富含金属的异常岩浆作用反映特定变形类型的假设，为更有效的找矿提供新的战略，例如俯冲板块中的撕裂。我们将使用地球物理模型来约束沿澳大利亚板块北部边界的板片结构，并使用地球化学数据来建立与异常岩浆作用和矿床之间的时空联系。通过确定与撕裂有关的岩浆活动的地球化学指纹，预计成果将为地球科学研究和矿产勘探提供背景，为矿产丰富的省份的类似岩石组合提供背景。