User:Johnmichael0705/Vapor bubble

Vapor Bubble
A vapor bubble can be present in a melt inclusion or fluid inclusion due to the differential cooling of a host phenocryst and associated melt or fluid inclusion. During cooling, if the volume of melt or fluid decreases more than the host phenocryst, a vapor bubble may form to account for this difference in volumes. In some cases, the volatiles in the melt or fluid will exsolve into the vapor bubble and could contain a significant portion of the original volatile concentration.

Analysis
Determination of the contents of vapor bubbles includes Raman spectroscopy, heating the inclusion and vapor bubble and then quenching the glass to be analyzed by FTIR and modeling based off an equation of state (Hamilton in prep).