Water-Rock Reactions in the Solar System

太阳系中的水-岩反应

• 批准号: 2780808
• 金额: --
• 依托单位: University of Leicester
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2780808
• 关键词: Water; Rock; Reactions; Solar; System

Samples of different Solar System bodies arrive on Earth through the natural flux of meteorites and sample return space missions. By using a variety of experimental techniques on such samples we can constrain the origin of mineral assemblages associated with the reaction of water on Mars and asteroids in order to better understand the evolution of the Solar System. The Hayabusa2 mission successfully sampled asteroid Ryugu in mid 2019 and returned samples to Earth a year later. Leicester is part of the Hayabusa2 mineralogy team and we are making some of the first analyses of the samples. Using a variety of electron microscopy techniques and recently commissioned beamlines at the Diamond synchrotron we have a unique opportunity to determine asteroidal processes. We will also analyse close analogues to the Ryugu material from carbonaceous chondrites including the recently discovered Winchcombe meteorite find. The same analytical techniques can be applied to recently discovered martian meteorites. We have made some of the most detailed analyses of the nakhlite meteorites and this studentship will study a recently discovered new nakhlite. By determining the mineral assemblages resulting from water-rock reactions in the parent rocks we will be able to constrain the environment of sub surface hydrous processes in that part of the martian crust.

不同太阳系天体的样本通过陨石的自然通量和样本返回太空任务到达地球。通过对这些样品使用各种实验技术，我们可以约束与火星和小行星上的水反应有关的矿物组合的起源，以便更好地了解太阳系的演化。隼鸟2号在2019年年中成功地对小行星龙宫进行了采样，并在一年后将样本送回了地球。莱斯特是隼鸟2号矿物学小组的一员，我们正在对样本进行一些初步分析。利用各种电子显微镜技术和最近在钻石同步加速器上委托的光束线，我们有一个独特的机会来确定小行星的过程。我们还将分析来自碳质球粒陨石的与龙宫物质相似的物质，包括最近发现的温奇库姆陨石。同样的分析技术也可以应用于最近发现的火星陨石。我们已经对nakhlite陨石做了一些最详细的分析，这个学生将研究最近发现的新nakhlite。通过确定母岩中水-岩反应产生的矿物组合，我们将能够限制火星地壳中那部分地下含水过程的环境。