ELT Collaborative Research: Beyond the boring billion: Late Proterozoic glaciation, oxygenation and the proliferation of complex life

ELT 合作研究：超越无聊的十亿：晚元古代冰川作用、氧化和复杂生命的增殖

• 批准号: 1411609
• 负责人: Noah Planavsky
• 金额: $ 21.12万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-27 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1411609&HistoricalAwards=false
• 关键词: ELT; Collaborative; Research; Beyond; boring

ELT Collaborative Research: Beyond the Boring Billion: Late Proterozoic Glaciation, Oxygenation and the Proliferation of Complex LifebyTimothy Lyons, Univ. California, Riverside, EAR-1338299Nicholas Planavsky, Dartmouth College, EAR-1338208Christopher Reinhard, Georgia Tech, EAR-1338290ABSTRACTThe middle chapters in Earth's history, roughly 1.8 to 0.8 billion years ago, were defined by remarkable stability in generally low but persistent oxygen levels in the ocean and atmosphere and stifled development of early organisms for a billion years. How and when this cycle was broken are among the central unanswered questions in the history of life on Earth. The eventual rise to higher oxygen levels and ultimately the appearance of animals correspond generally with history's most extreme climatic events and mountain building episodes, and the timing and cause-and-effect relationships among all these events and processes are frontiers ripe for study. To this end, we will construct an unusually comprehensive chemical data set for rocks from Australia and Arctic Canada deposited directly within the transition between the stable 'boring' billion and the major milestones that followed. The onset of global-scale glaciation 0.7 to 0.8 billion years ago is without question one of the most dramatic environmental transitions in Earth history, and the generally synchronous radiation of eukaryotic organisms, with greater complexity than their microbial ancestors, and the emergence of animals are among the most remarkable evolutionary events in the long history of life. The proposed multidisciplinary team will illuminate the timing of these key events and their likely links to Earth's oxygenation, while probing the cause-and-effect relationships among biological innovation, oxygen, and the onset of global-scale glaciation. The study's full range of impacts will reach far beyond the intrinsic scientific merit, including high-level research opportunities for the diverse undergraduate populations at all three institutions. We will also reach out into the community through sponsorship of science fair projects and through many different contributions to the new Riverside STEM Academy, including organization of a lecture series that will bring prominent scientists and engineers into the school. The study also includes plans for collaborative mentoring of graduate students, including student exchanges, and is an important step in the early careers of two new professors.

ELT合作研究：超越无聊的十亿：晚期植物学，氧合和复杂的Lifebytimothy Lyons，Univ。加利福尼亚，河滨，EAR-1338299Nicholas Planavsky，达特茅斯学院，EAR-1338208CHRISTOPHER RENHARD，佐治亚理工学院，EAR-1338290ABSTRACT THE WHINE EAR中地球历史上的中间章节，大约1.8亿至80亿年前的稳定性，但稳定的稳定性在大约1.8亿至80亿年前的稳定性，并且是稳定的稳定性。有机体数十亿年。如何以及何时破裂是地球生命史上中心的未解决的问题之一。最终的氧气水平上升到更高的氧气水平，最终的外观通常与历史上最极端的气候事件和山区建筑事件相对应，所有这些事件和过程之间的时机和因果关系是研究的前沿。 为此，我们将为澳大利亚和加拿大北极加拿大岩石的异常综合化学数据集构建直接在稳定的“无聊”十亿美元与随后的主要里程碑之间的过渡中。毫无疑问，全球规模的冰川冰期在0.7至8亿年前的发作是地球历史上最戏剧性的环境过渡之一，以及真核生物的一般同步辐射，其复杂性比其微生物祖先更复杂，而动物的出现是漫长的生命历史上最引人注目的进化事件之一。拟议的多学科团队将阐明这些关键事件的时机及其与地球氧合的可能联系，同时探测生物创新，氧气和全球规模冰川的发作之间的因果关系。该研究的全部影响将远远超出内在的科学功绩，包括在所有三个机构中为多样化的本科种群提供的高级研究机会。 我们还将通过赞助科学博览会项目以及对新河滨STEM学院的许多不同的贡献，包括将著名科学家和工程师带入学校的讲座系列的许多不同的贡献。 该研究还包括对研究生的合作指导的计划，包括学生交流，并且是两位新教授早期职业的重要一步。