Interconnecting the earth system with sulfur and oxygen multiple isotopes

来自发现赠款计划的这一奖项将有助于建立麦吉尔大学地球和行星科学系新的总硫和氧稳定同位素实验室的研究计划。该实验室的研究计划的广泛目标是调查从几年到千兆年的时间尺度上地球表面环境的氧化演变和能力。 特别强调的是放在独特的能力，测量的总S和O同位素组成（32 S，33 S，34 S，36 S; 16 O，17 O，18 O），使新的互连之间的不同组成部分的古和现在的地球系统。 特别感兴趣的是，总的S和O同位素分析的影响，了解发生在太古代岩石的加拿大地盾的巨大的矿化的起源，并了解控制污染清洁氧化剂（OH，O3）在现代大气中的丰度。 在该奖项支持的研究期间，同位素实验室的学生和博士后将接受最先进的技术培训，以进行总S和O稳定同位素分析。 研究的结构将使更有经验的实验室成员直接监督经验不足的实验室成员，从而增加了指导的研究培训经验。 该奖项支持的研究将强调和量化固体地球对地球表面环境氧化演变的控制。因此，所有在该奖项下接受培训的学生将获得地球科学的地球系统观点。 这一观点将通过PI作为麦吉尔大学新的地球系统科学计划的创始成员而受到鼓励。

This award from the Discovery Grants Program will help establish the research program of the new total sulfur and oxygen stable isotope laboratory in the Department of Earth and Planetary Sciences at McGill University. The broad aim of the laboratory's research program is to investigate the oxidative evolution and capacity of Earth's surface environment on timescales from years to gigayears.  Special emphasis is placed on the unique ability of measurements of total S and O isotopic compositions (32S, 33S, 34S, 36S; 16O, 17O, 18O) to make new interconnections among different components of the paleo- and present Earth system.  Of particular interest are the implications that total S and O isotopic analyses have for understanding the origin of the vast mineralization that occurs in Archean rocks of the Canadian Shield and for understanding what controls the abundances of pollution-cleansing oxidants (OH, O3) in the modern atmosphere.  During the research supported under this award, students and post-docs in the isotope lab will be trained in state-of-the-art techniques for making total S and O stable isotope analyses.  Research will be structured to enable more-experienced lab members to directly supervise less-experienced lab members, thereby adding mentoring to the research training experience.  This award supports research that will emphasize and quantify solid Earth controls on the oxidative evolution of Earth's surface environment. All students trained under this award, therefore, will gain an Earth system perspective for Earth science.  This perspective will be encouraged through the PI's position as an inaugural member of the new Earth System Science program at McGill University.