Collaborative Research: Volatiles in Mantle Plumes: Implications for Geochemical Cycling of Volatile Elements

该项目将分析来自四个地区的玄武岩玻璃中的水和二氧化碳，这些地区代表着不同的地幔岩浆来源。重同位素和He-3区分了深部(原生)和浅部(再循环)地幔热柱储集层。对挥发物的表征将有助于了解熔体的物理性质和分馏，以及俯冲带物质再循环造成的地壳污染程度。

This project will analyze the water and carbon dioxide in basalt glasses from four areas chosen to represent different mantle magma sources. Heavy isotopes and He-3 distinguish deep (primary) and shallow (recycled) mantle-plume reservoirs. Characterization of the volatiles will contribute to understanding physical properties and fractionation of the melts, as well as the degree of crustal contamination resulting from recycling of subduction-zone material.