Measuring Multiple Nuclides in Iron Oxides: Expanding Cosmogenic Nuclide Studies into New Lithologies

在过去的25年里，宇宙射线产生的(宇宙源)放射性核素地球科学技术彻底改变了人们对地球表面过程的理解。这些研究大多使用在石英中原位产生的宇宙成因的10Be和26Al，这部分是由于这种矿物的普遍存在，部分是因为地球科学界可以获得加速器质谱学(AMS)样品制备方案。自该方法发展以来，在地貌学、气候学、考古学、生态学、地震学和地球物理学等领域，对石英中的10Be和26Al的测量已被用来提供经验约束和回答基本的悬而未决的问题。这项研究将开发一种常规的、强大的标准化方法来测量氧化铁、磁铁矿中的多个宇宙成因核素，为从事多个学科的地球科学家提供一个强大的新工具。

Over the last 25 years cosmic ray produced (cosmogenic) radionuclide techniques for earth sciences have revolutionized the understanding of processes at the Earth's surface. Most of these investigations utilize in-situ produced cosmogenic 10Be and 26Al in quartz, due in part to the ubiquity of this mineral, and in part because of the availability of Accelerator Mass Spectrometry (AMS) sample preparation protocols that are accessible to the earth science community. Since the development of the method, measurements of 10Be and 26Al in quartz have been used to provide empirical constraints and answer fundamental outstanding questions throughout the fields of geomorphology, climatology, archaeology, ecology, seismology, and geophysics. This investigation will develop a routine, robust standardized approach for measuring multiple cosmogenic nuclides in the iron oxide, magnetite, providing a powerful new tool for earth scientists working across many disciplines.