Japan STA Program: Silicate Inclusion, Fluid Inclusions, and Stable Isotope Composition in Krakatau Erupted Products

小行星9521707 该奖项为罗得岛大学海洋学院的Charles Mandeville博士提供了为期24个月的日本科学技术厅博士后研究金。 Mandeville博士将与Jeffrey Hedenquist博士在筑波的日本地质调查局工作。 研究人员试图改进岩石学方法，这些方法现在用于估计大型火山爆发期间释放到大气中的气体量，这些气体量可能会暂时改变气候。 拟议的研究旨在研究一套喀拉喀托硅酸盐熔体包裹体的证据不混溶的液体/蒸汽相的非均质捕获之前的灾难性喷发。 从这项研究的结果将被用来对目前的方法估计挥发性排放的扩展，至少定性地评估分区岩浆体的上部的出溶气相的存在或不存在。 这项研究的结果将可能导致更好地了解如何气体采样的脱气火山涉及到岩浆体在深度。 ***

9521707 Mandeville This award supports a 24-month Science and Technology Agency of Japan Postdoctoral Fellowship for Dr. Charles Mandeville of the School of Oceanography at the University of Rhode Island. Dr. Mandeville will work with Dr. Jeffrey Hedenquist at the Geological survey of Japan in Tsukuba. The investigators seek to improve upon the petrologic methods that are now used to estimate the amounts of gases released to the atmosphere during large explosive volcanic eruptions, amounts that may temporarily alter climate. The proposed research aims to study a suite of Krakatau silicate melt inclusions for evidence of heterogeneous trapping of immiscible liquid/vapor phases prior to the catastrophic eruption. Results from this study will be used towards extension of the present method of estimating volatile discharge to at least qualitatively evaluate the presence or absence of an exsolved vapor phase in the upper portion of zoned magma bodies. Results from this study will potentially lead to a better understanding of how gas sampling of degassing volcanoes relates to magma bodies at depth. ***