Massive volcanism, particularly from Large Igneous Provinces (LIPs), is generally thought to have triggered significant disruptions in surface climate, environmental conditions and biological evolution and extinction throughout Earth’s history. While the effects of volcanic volatiles have been extensively studied, the impact of subsequent weathering of large amount of volcanic rocks (e.g. continental and submarine flood basalt) on surface elemental cycling, climate fluctuations, and biological evolution remains less understood, particularly also regarding the timescales involved in these processes.
This session is open to studies exploring the effect of (both modern and past) volcanic rock weathering on atmospheric CO2 concentration changes, cycling of metal elements, climatic and environmental perturbations, the evolution or extinction of terrestrial and marine organisms, etc. Topics include, but are not limited to, proxy calibration in modern or diagenetic systems, experimental constraints, Earth system modelling, data-model calibrations, big data machine learning and novel proxy applications in the ancient sedimentary record. We especially encourage submissions with new and innovative insights regarding mechanisms, feedbacks, or quantitative thresholds driving the weathering of volcanic rocks and its relationship with environmental, climatic, and biological evolution.