Insight into Mantle Melting and Crustal Differentiation of Ocean Island Volcanoes: An Isotopic and Trace Element Study of Waianae Volcano, Hawaii

该项目的主要目标是对来自夏威夷怀托火山的样品进行同位素和微量元素研究。 这项研究将利用深层暴露，以及先前确定的内部地层学的详细知识，以及火山演化不同阶段岩浆供应和熔融过程的变化，这些变化应与夏威夷羽流中心的距离变化相关。这项工作将产生一个高质量的综合数据集，使人们能够深入了解火山位于羽流不同部分上方时所表达的成分的性质，这些成分如何在不同程度的部分熔融下对夏威夷岩浆作出贡献，以及岩浆成分、部分熔融和总体岩浆供应的变化如何影响火山建筑物内岩浆库的发展和演变。就更广泛的影响而言，该项目将有助于培训一名本科生获取和解释同位素和高精度微量元素数据，并促进女博士后Iris货车der Zander的早期职业发展。这项工作的结果将发表在容易获得的期刊上，由PI纳入课堂教学和社区讲座，以及进入一个受欢迎的网站，从而传播给广泛的受众，包括非科学专业。

The primary goal of this project is to do an isotopic and trace element study of samples from the Waianae Volcano in Hawaii. This study will take advantage of the deep exposure, and previously determined detailed knowledge of internal stratigraphy, and variations in magma supply and melting processes at different stages of volcanic evolution that should be correlated to changing distance from the Hawaiian plume center. This work will produce a high-quality, comprehensive data set that will provide insight into the nature of compositional components expressed when the volcano was above different portions of the plume, how these components contribute to Hawaiian magmas at variable extents of partial melting, and how variations in magma composition, partial melting and overall magma supply affected the development and evolution of magma reservoirs within the volcanic edifice. In terms of broader impacts, the project will contribute to the training of an undergraduate student in the acquisition and interpretation of isotopic and high-precision trace element data, and development of the early career of female post-doc Iris Van der Zander. Results of this work will be published in easily accessible journals, incorporated into classroom teaching and community lectures by the P.I.s, as well as into a popular Web site, and thus disseminated to a wide audience, including non-science majors.