RUI: A Petrologic Investigation into Mantle Xenoliths from Oahu: Origin and Significance of Glass-rich Pockets

尖晶石二辉橄榄岩的组成矿物的地球化学表明，在Koolau（拉斑玄武岩）和檀香山（碱性）岩浆活动期间，MORB亏损岩石圈经历了显着的不相容的微量元素和微量元素的富集。对富集过程的调查导致了本1年提案的制定，该提案旨在探索孤立的载有晶体的玻璃袋的性质、化学成分和起源，其中一些玻璃袋可能具有活性，只要这些捕虏体中含有富集的元素。在本项目中，将对这些口袋中的相进行广泛的电子探针分析（主要和次要元素）和初步离子探针分析（REES）。结果将允许评估与所发现的各种类型的玻璃的起源有关的各种模型。

The geochemistry of the constituent minerals of spinel lherzolites suggests that the MORB-depleted lithosphere underwent significant enrichment in incompatible minor and trace elements during Koolau (tholeiitic) and Honolulu (alkalic) magmatic activity. An investigation into the enrichment processes has led to the development of the present 1 year proposal designed to explore the nature, chemical composition, and origin of isolated crystal-laden glass pockets, some of which may have activity provided the elements in which these xenoliths have been enriched. Extensive electron microprobe analysis (major and minor elements) and preliminary ion microprobe analysis (REES) of the phases in these pockets will be performed in this project. The results will allow evaluation of the various models concerned with origins of the various types of glasses found.