Controls on the severity of past environmental crises

对过去环境危机严重程度的控制

• 批准号: DE230100078
• 负责人: Dr Hugo Olierook
• 金额: $ 31.04万
• 依托单位: Curtin University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2023
• 资助国家: 澳大利亚
• 起止时间: 2023-01-01 至 2025-12-31
• 项目状态: 未结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE230100078
• 关键词: Controls; severity; past; environmental; crises

This project aims to investigate how the rate of volcanic volatile emissions controlled the severity of past environmental crises. Catastrophic mass extinctions and major oceanic anoxia events are principally caused by the emplacement of gigantic volcanic eruptions but the volume of magma does not correlate with environmental severity. This project couples high-precision age and volatile emission measurements to model distinct climatic perturbations over Earth’s last 540 million years. The intended outcome is to find a root cause for severity of past environmental crises, with past emission rates to be used as tools to model possible future climatic crises and provide a new fundamental understanding of Earth’s magmatic engine.

该项目旨在研究火山挥发物排放率如何控制过去环境危机的严重程度。灾难性的大规模喷发和重大的海洋缺氧事件主要是由巨大的火山喷发的侵位引起的，但岩浆的体积与环境的严重程度无关。该项目结合了高精度的年龄和挥发性排放测量，以模拟地球过去5.4亿年中独特的气候扰动。预期的结果是找到过去环境危机严重程度的根本原因，过去的排放率将被用作模拟未来可能的气候危机的工具，并提供对地球岩浆引擎的新的基本理解。