报告人：Simon Poulton 讲席教授，英国利兹大学
报告时间：2025年3月6日（星期四）下午15:00-16:00
报告地点：西康路1号河海大学海洋学院507会议室
主持人：孙高远 副教授
报告摘要：
Over the last 20 years, huge progress has been made in terms of our understanding of Earth's oxygenation history. This lecture will start with a general overview and timeline of the advances made, culminating in the most up-to-date reconstruction of atmospheric and oceanic oxygenation. Recent research will then be presented on the role that phosphorus cycling played in priming the Earth for its first major rise in atmospheric oxygen during the Great Oxidation Episode (GOE). Research pertaining to the dynamics of the GOE and links to phosphorus cycling will then be discussed. This work documents a major delay of ~100 million years in the timing of persistent atmospheric oxygenation, with intense fluctuations in atmospheric oxygen levels being linked to major climate perturbations. Finally, we will review how far our understanding of the history of mid-Proterozoic ocean chemistry has evolved over the last 20 years, with an ultimate focus on potential drivers of apparent temporal and spatial variability in this record.
报告人简介：
Simon Poulton，英国利兹大学地球与环境学院讲席教授，国际地球化学学会会士、英国皇家学会沃尔夫森优秀科研奖（Royal Society Wolfson Research Merit Award）获得者，入选2023年度中国科学院国际人才计划（PIFI），2025年获河海大学外专积晷计划资助。他长期致力于研究现代和深时地球表层生物地球化学、海洋氧化还原状态与营养元素循环以及地球演化历史中大气-海洋氧气的演变规律等问题，通过极具独创性的沉积地球化学方法和地球系统模拟手段揭示地表环境与生命协同变化的规律，并取得引领性成果。发表论文一百余篇，包括Nature、Science、Nature Geoscience、Nature Communications、Science Advances等高水平期刊论文数十篇，被引18000余次。
