Collaborative Research: A Collaborative Study: Geochemical Evolution of Kilauea Volcano, Hawaii - Evidence from Melt Inclusions in Three Deep Rock Cores

夏威夷的尼尔森火山是地球上最活跃的火山之一。然而，由于它们的高喷发和沉降率，缺乏对其时间演变的直接记录。本项目将利用基拉韦厄火山下东部裂谷带三个深（~2公里）钻孔岩芯的样本，研究类型海洋热点的岩浆过程和羽流演化。该项目的目标是：(1)记录基拉韦厄火山管道系统中以熔体包裹体形式保存的原始岩浆的多样性，(2)记录源流成分随时间的变化，(3)确定构成基拉韦厄火山熔岩的岩浆成分的体积比例，以及(4)评估基拉韦厄火山和莫纳罗亚火山管道系统的连通性。这项研究，加上正在夏威夷莫纳克亚火山（Mauna Kea）进行的深度钻探研究，可以提供夏威夷羽流演化的更长的时间序列，而不是传统的实地采样。这不仅将增强我们对夏威夷羽流演变的理解，而且将为研究其他热点火山提供一个基准。

9714783 Nielsen Volcanoes in Hawaii are among the most active on Earth. However, due to their high rates of eruption and subsidence, direct documentation of their temporal evolution is lacking. This project will use samples from three deep (~2 km) drill cores in Kilauea Volcano's Lower East Rift Zone to study magmatic processes and plume evolution in the type oceanic hotspot. The goals of this project are: (1) to document the diversity of primitive magmas, preserved as melt inclusions, in the Kilauea plumbing system over more than 100 Ka of Kilauea's history, (2) to record the change in source compositions over time, (3) to determine volumetric proportions of magmatic components contributing to Kilauea lavas through time, and (4) to evaluate connectivity of the plumbing systems of Kilauea and Mauna Loa. This study, together with an ongoing deep drilling study at Mauna Kea, an older volcano on Hawaii, can provide a much longer time-series of Hawaiian plume evolution than would be possible by conventional field sampling. This will not only enhance our understanding of the evolution of the Hawaiian plume, but will provide a benchmark for studying other hotspot volcanoes.