User:Johnmichael0705/Vapor bubble

From Wikipedia, the free encyclopedia
Arrow points at a vapor bubble within a glass melt inclusion from an olivine crystal picked from ash erupted at Cerro Negro Volcano, Nicaragua in 1992.

Vapor Bubble[edit]

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[edit]

Determination of the contents of vapor bubbles includes Raman spectroscopy,[1][2] heating the inclusion and vapor bubble and then quenching the glass to be analyzed by FTIR[3] and modeling based off an equation of state (Hamilton in prep).[4]


References[edit]

  1. ^ Aster, Ellen M.; Wallace, Paul J.; Moore, Lowell R.; Watkins, James; Gazel, Esteban; Bodnar, Robert J. (2016). "Reconstructing CO2 concentrations in basaltic melt inclusions using Raman analysis of vapor bubbles". Journal of Volcanology and Geothermal Research. 323: 148–162. doi:10.1016/j.jvolgeores.2016.04.028. ISSN 0377-0273.
  2. ^ Moore, Lowell R.; Gazel, Esteban; Tuohy, Robin; Lloyd, Alexander S.; Esposito, Rosario; Steele-MacInnis, Matthew; Hauri, Erik H.; Wallace, Paul J.; Plank, Terry; Bodnar, Robert J. (2015). "Bubbles matter: An assessment of the contribution of vapor bubbles to melt inclusion volatile budgets". American Mineralogist. 100 (4): 806–823. doi:10.2138/am-2015-5036. ISSN 0003-004X.
  3. ^ Wallace, Paul J.; Kamenetsky, Vadim S.; Cervantes, Pablo (2015). "Melt inclusion CO2 contents, pressures of olivine crystallization, and the problem of shrinkage bubbles". American Mineralogist. 100 (4): 787–794. doi:10.2138/am-2015-5029. ISSN 0003-004X.
  4. ^ Tucker, Jonathan M.; Hauri, Erik H.; Pietruszka, Aaron J.; Garcia, Michael O.; Marske, Jared P.; Trusdell, Frank A. (2019). "A high carbon content of the Hawaiian mantle from olivine-hosted melt inclusions". Geochimica et Cosmochimica Acta. 254: 156–172. doi:10.1016/j.gca.2019.04.001. ISSN 0016-7037.

External links[edit]