Laser Raman spectroscopic measurements of water in unexposed glass inclusions
Laser Raman spectroscopic measurements of water in unexposed glass inclusions
复制标题
未曝光玻璃内含物中水的激光拉曼光谱测量
DOI：
10.2138/am.2006.2107
复制
发表时间：
2006
影响因子：
3.1
通讯作者：
P. Davidson
中科院分区：
文献类型：
--
作者：
R. Thomas;Vadim Kamenetsky;P. Davidson
摘要本文提出了一种利用共焦显微拉曼光谱测定硅酸盐熔体包裹体中水分含量的方法，该方法不需要暴露包裹体进行测量（这是所有方法的先决条件）。后者对于极其富含水的Mi（例如，那些在演化的花岗岩和伟晶岩中的），它们在暴露时会释放出H2O。此外，该技术允许确定单个Mi中的水浓度。我们使用比较技术，确定样品的总含水量与已知含水量的参考玻璃。由于该过程是非破坏性的，因此不排除随后使用其他分析技术。
Abstract A method is proposed for determining the water concentration in silicate melt inclusions (Mi) by confocal micro-Raman spectroscopy, without exposing the inclusions for measurement (a prerequisite of all previous methods). The latter is important for extremely water-rich Mi (e.g., those in evolved granites and pegmatites), which would loose H2O on exposure. Furthermore, this technique permits determination of the water concentration in a single Mi. We use a comparative technique, determining the total water content of a sample against a reference glass of known water content. Because this process is non-destructive it does not preclude the subsequent use of other analytical techniques.