Elemental and isotopic interactions within the deepest parts of the oceanic crust- Atlantis Massif (IODP Expedition 399)

洋壳最深处的元素和同位素相互作用 - 亚特兰蒂斯地块（IODP Expedition 399）

• 批准号: 2888769
• 金额: --
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2888769
• 关键词: Elemental; isotopic; interactions; within; deepest

This project is an exciting opportunity to take part in a major, well-supported and highly successful international science program- the International Ocean Discovery Program (IODP). The student will gain deep understanding of ocean floor magmatic, tectonic and post-emplacement seawater-rock interaction processes. The project will focus on the petrology and geochemistry of new drill core samples recovered from the Atlantis Massif i.e. near the Mid Atlantic Ridge (deepest oceanic crust samples ever drilled at slow spreading setting). We envision the use of classical petrography, mineral and rock trace element chemistry, with state-of-the-art whole rock boron and strontium isotope measurements. The work will aim to better understand the still enigmatic volatile and fluid infiltration (at mid ocean ridges) and their subsequent release (at volcanic fronts) across subduction zones. The student will be part of a team of > 20 scientists working on rocks recovered from IODP Expedition 399.There will be opportunity to visit IODP repository in Bremen for sample selection, be trained and perform measurements at the world-class analytical facilities in Leeds and/or CNR-IGG Labs in Pisa, as well as to present results at an international conferences. We also envision fieldwork in the Balkan and Troodos ophiolite massifs as integral part of the project, where possible oceanic crustal analogues may be discovered.

这个项目是一个令人兴奋的机会，参加一个重大的，支持和非常成功的国际科学计划-国际海洋发现计划（IODP）。学生将深入了解洋底岩浆，构造和后侵位海水岩石相互作用过程。该项目将侧重于从亚特兰蒂斯地块即大西洋中脊附近（在缓慢扩张环境下钻探的最深洋壳样品）回收的新岩心样品的岩石学和地球化学。我们设想使用经典的岩相学，矿物和岩石微量元素化学，最先进的全岩硼和锶同位素测量。这项工作的目的是更好地了解仍然神秘的挥发性和流体渗透（在大洋中脊）及其随后的释放（在火山前缘）跨越俯冲带。该学生将成为一个由20多名科学家组成的团队的一员，该团队研究从IODP Expedition 399中回收的岩石。将有机会访问不莱梅的IODP储存库进行样品选择，接受培训，并在利兹和/或比萨的CNR-IGG实验室的世界级分析设施进行测量，以及在国际会议上展示结果。我们还设想在巴尔干半岛的和特罗多斯蛇绿岩带进行实地考察，作为项目的一个组成部分，在那里可能会发现类似的大洋地壳。