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

深入了解洋岛火山的地幔融化和地壳分异：夏威夷怀阿奈火山的同位素和微量元素研究

基本信息

批准号：
0337352
负责人：
John Sinton
金额：
$ 7.49万
依托单位：
University of Hawaii
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2004
资助国家：
美国
起止时间：
2004-07-01 至 2007-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0337352&HistoricalAwards=false
关键词：
Insight into Mantle Melting Crustal

项目摘要

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.

该项目的主要目标是对夏威夷怀亚纳火山的样品进行同位素和微量元素研究。这项研究将利用深度暴露，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融化过程的变化，这些变化应该与夏威夷羽流中心的距离变化有关。这项工作将产生一个高质量，全面的数据集，将提供洞察组成成分的性质，当火山在不同部分的羽流，这些成分是如何贡献夏威夷岩浆在不同程度的部分熔融，以及岩浆组成，部分熔融和整体岩浆供应的变化如何影响火山大厦内岩浆储层的发展和演化。就更广泛的影响而言，该项目将有助于培养一名同位素和高精度微量元素数据采集和解释方面的本科生，并有助于女性博士后Iris Van der Zander的早期职业发展。这项工作的结果将发表在易于查阅的期刊上，纳入私家侦探的课堂教学和社区讲座，以及一个受欢迎的网站，从而传播给广泛的受众，包括非科学专业的学生。