Collaborative Research: Coupling Mantle Volatiles, Eruption Dynamics, and Tectonics on the Mid-Atlantic Ridge

对大西洋中部扩张中心的一部分进行填图和取样，将利用最近认识到的构造变形可能在集中地幔挥发性通量方面发挥作用的优势。1980年，在那里确定了一个独特的地球化学特征，用于提取S的爆裂岩石样本。地球物理制图、遥控潜航器有针对性的采样和一整套巡航后的地球化学分析旨在确定地幔挥发物的早期量化是否对该区域具有代表性，和/或这种特征是否只聚集在断层附近，从而意味着局部的通量作用。这样的发现可能会推翻长期以来关于背景地幔挥发性成分的推断。学生将被介绍给海洋研究，博士后将深入研究传播中心流程的新方面。与法国国际地球科学计划的合作将培训这些年轻的科学家进行综合的、国际的、跨学科的地球科学。

Mapping and sampling of a portion of the mid-Atlantic spreading center, where a unique geochemical signature was determined for a 1980's 'popping rock' sample, will take advantage of recent recognition that tectonic deformation may play a role in focusing volatile fluxing from the mantle. Geophysical mapping, targeted sampling by ROV, and a complete suite of post-cruise geochemical analyses aim to determine whether the early quantification of mantle volatiles was representative for the region and/or whether such signatures cluster only near faults, thus implying localized fluxing. Such finding could uproot long-standing inferences about background mantle volatile contents. Students will be introduced to marine research and a postdoc will delve into a new aspect of spreading center processes. Collaboration with IPGP France will train these young scientists in integrated, international, interdisciplinary geoscience.