Monitoring the Composition of Lavas from the Continuing Puu Oo Eruption of Kilauea Volcano, Hawaii: Deciphering Petrologic Processes in Volcanic Systems

监测夏威夷基拉韦厄火山持续喷发的熔岩成分：破译火山系统中的岩石过程

• 批准号: 9104884
• 负责人: Michael Garcia
• 金额: $ 12.3万
• 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: 1991
• 资助国家: 美国
• 起止时间: 1991-06-01 至 1994-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9104884&HistoricalAwards=false
• 关键词: Monitoring; Composition; Lavas; Continuing; Puu

This study is to determine the nature and causes of compositional variation in lavas from the continuing eruption of Kilauea Volcano, Hawaii. Mineral, glass and whole-rock compositions and Pb, Sr and Nd isotope ratios will be determined and used to evaluate the relative importance of crystal fractionation, magma mixing and mantle melting processes in controlling the composition of the lavas erupted. It is also proposed to evaluate the temporal and spatial variations in the composition of lavas erupted historically at the summit of Kilauea Volcano. This study will evaluate the size and location of the summit reservoir (which are still poorly known), and will be the first to determine modes, mineral and glass major elements, whole-rock major, and trace elements, and O, Pb, Sr and Nd isotope ratios, all on the same samples. Petrological and geochemical results from this study will be integrated with field and geophysical measurements and interpretation made by the staff of the U.S.G.S.

本研究旨在确定 火山持续喷发造成的熔岩成分变化 夏威夷的基拉韦厄火山。 矿物、玻璃和全岩 将确定其组成和Pb、Sr和Nd同位素比值 用来评价晶体的相对重要性 分馏作用、岩浆混合作用和地幔熔融作用 控制着喷发出的熔岩的成分 也是 建议评估在时间和空间上的变化， 历史上火山喷发的熔岩成分 基拉韦厄火山。 这项研究将评估的大小和位置 《易经》云：“知之者，知之者，知之者也。 第一个确定模式，矿物和玻璃专业 元素、全岩主量元素和微量元素以及O、Pb、Sr和 钕同位素比率，都在同一个样本上。 岩石学和 本研究的地球化学结果将与野外 以及工作人员进行的地球物理测量和解释 美国地质调查局