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

该项目是一个令人兴奋的机会，可以参与一个重要的、得到良好支持和非常成功的国际科学计划--国际海洋发现计划(IODP)。学生将对海底岩浆、构造和就位后海水-岩石相互作用过程有深入的了解。该项目将侧重于从亚特兰蒂斯地块(即大西洋中脊附近)恢复的新钻探岩心样品的岩石学和地球化学(在缓慢扩张环境下钻探的最深洋壳样品)。我们设想使用经典的岩石学、矿物和岩石微量元素化学，以及最先进的全岩硼和锶同位素测量。这项工作的目的将是更好地了解仍然神秘的挥发性和流体渗透(在大洋中脊)，以及随后跨越俯冲带的释放(在火山前缘)。这名学生将是一个由20名科学家组成的团队的一员，他们致力于研究IODP勘探399次探险中发现的岩石。他们将有机会访问不来梅的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实验室进行世界级分析设施的测量，以及在国际会议上展示结果。我们还设想在巴尔干和特罗多斯蛇绿岩地块进行实地考察，作为该项目的组成部分，在那里可能发现类似的大洋地壳。

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.