RREADI3- TCS Eruption dating readiness and decadal magmatic timing studies for the EPR ISS

覆盖地球表面约三分之二的熔岩在海底大洋中脊喷发，使其成为地球上最具火山生产力的环境。这种火山作用为地球内部的热量和物质提供了一个主要出口，并在海洋化学和深海海洋生物生态中发挥着重要作用。该项目的重点是大洋中脊最近岩浆和火山作用的时间尺度和速率，重点放在海脊2000计划的跨学科综合研究地点和其他有机会探测到海底喷发并快速采样的地点。放射性同位素210Po和210Pb被用来确定年轻喷发的年代，这是最重要和最可靠的手段。210Po的半衰期只有138天，因此，用于210Po-210Pb分析的样品需要立即处理。这项工作的更广泛影响是通过升级实验室设施以容纳更多日期来加强科学基础设施，在测年技术方面进行方法学改进，并使实验室准备好为当前和未来海底火山活动的关键时间研究进行短熔断熔岩测年。

Lavas covering about 2/3 of Earth's surface are erupted at submarine mid-ocean ridges, making it the most volcanically productive environment on the planet. This volcanism provides a major outlet for heat and matter in Earth's interior and plays a significant role in ocean chemistry and the ecology of deep sea marine life. This project is focused on the timescales and rates of very recent magmatic and volcanic processes at mid-ocean ridges, with a focus on interdisciplinary integrated study sites of the Ridge2000 program and other sites of opportunity where seafloor eruptions can be detected and quickly sampled. Radio isotopes 210Po and 210Pb are used and comprise the most important and reliable means to date young eruptions. The half-life of 210Po is only 138 days, as such, samples for 210Po-210Pb analysis require immediate processing. The broader impacts of the work are enhancing infrastructure for science by upgrading laboratory facilities to accommodate more dates, making methodological improvements in the dating technique, and keeping the lab ready to conduct short-fuse lava dating for current and future time critical studies of submarine volcanism.