Controls on the severity of past environmental crises

该项目旨在调查火山挥发性排放物的速率如何控制过去环境危机的严重程度。灾难性的大灭绝和主要的海洋缺氧事件主要是由巨大的火山喷发引起的，但岩浆的体积与环境的严重程度无关。这个项目结合了高精度的年龄和挥发性排放测量来模拟地球过去5.4亿年里不同的气候扰动。预期的结果是找到过去环境危机严重程度的根本原因，将过去的排放率用作模拟未来可能发生的气候危机的工具，并提供对地球岩浆引擎的新的基本理解。

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.