Approximate chemical analysis of volcanic glasses using Raman spectroscopy

• DOI: 10.1002/jrs.4751
• Publication Date: 2015-07-08T06:33:11Z
• Authors: Danilo Di Genova; Daniele Morgavi; Kai‐Uwe Hess; Daniel R. Neuville; Nikita Borovkov; Diego Perugini; Donald B. Dingwell
• Keywords: Microprobe

The effect of chemical composition on the Raman spectra a series natural calcalkaline silicate glasses has been quantified by performing electron microprobe analyses and obtaining glassy filaments (~450 µm) derived from magma mingling experiment. results provide robust compositionally‐dependent database for along series. An empirical model based both acquired an ideal mixing equation between basaltic rhyolitic end‐members is constructed enabling estimation degree polymerization using spectra. relatively insensitive to acquisition conditions validated MPI‐DING geochemical standard as well further samples. methods developed here offer several advantages compared with other analytical spectroscopic such infrared spectroscopy, X‐ray fluorescence ion analyses, inasmuch spectroscopy can be performed high spatial resolution (1 µm 2 ) without need any sample preparation nondestructive technique. This study represents advance in efforts first yields new approach treatment spectra, which allows us extract approximate information about spectroscopy. We anticipate its application handheld situ terrestrial field studies under extreme (e.g. extraterrestrial submarine environments). © 2015 Authors Journal Spectroscopy Published John Wiley & Sons Ltd