Nature of Silicate Melts: Role of Highly Charged Cations

主要研究者将尝试确定解决方案 高电荷阳离子在过碱性中的特性， 过铝质和变铝质花岗岩到正长岩熔体。 的 目标是建立一个相互作用的层次结构， 高电荷阳离子和网络形成改性阳离子。 到 确定是魔角自旋核磁 各种玻璃的共振和振动光谱， 饱和表面的一元氧化物含有一个或多个高度 电荷阳离子（作为碱/氧化铝比的函数）， 各种流体组分在影响稳定性和 高电荷阳离子的配位状态。 总的来说，这项工作 将增加地质学家对复杂的 存在于某种岩浆中的相互作用。

The principal investigator will attempt to determine the solution characteristics of highly charged cations in peralkaline, peraluminous, and metaluminous granitic to syenitic melts. The objectives are to establish a hierarchy of interactions of highly charged cations and network-forming modifying cations. To be determined are the magic angle spinning nuclear magnetic resonance and vibrational spectra of various glasses, the saturation surfaces of unary oxides containing one or more highly charges cations (as a function of alkali/alumina ratio), and the role of various fluid components in affecting stability and coordination states of highly charged cations. Overall this work will increase geologist' understanding of the complex interactions that exist within certain kinds of magmas.