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Melt Inclusion Page

Reprints of two review articles on melt inclusions

Lowenstern, J.B., 2003, Melt inclusions come of age: Volatiles, Volcanoes, and Sorby's Legacy, In: B. De Vivo and R.J. Bodnar (eds). Melt Inclusions in Volcanic Systems: Methods, Applications and Problems. Developments in Volcanology 5, Elsevier Press, Amsterdam, pp. 1-22.

A 6 Megabyte pdf version of this website (the original review article) is available here.

The Melt Inclusion Page

About Melt Inclusions

Formation of Silicate-Melt Inclusions

  • Types of Inclusions,
  • Entrapment Mechanisms,
  • Leaked or "Hourglass Inclusions"
  • Does the Melt Inclusion Trap Representative Liquid?
  • Changes in Melt Inclusions After Entrapment

  • Volumetric Behavior
  • Other Origins of Bubbles
  • Crystallization
  • Diffusional Reequilibration
  • Techniques for Study

  • Sample Preparation
  • Electron Microprobe Analysis,
  • Ion Microprobe
  • Fourier Transform Infrared Spectroscopy
  • Other Analytical Techniques
  • Heating Stage
  • Concentrations of Dissolved Volatiles in MI

    Evidence for Fluid Saturation and Degassing

  • Mass-Balance Contraints
  • Fluid Solubility and Buffering Paths,
  • Trapped Vapors and Hypersaline Liquids
  • Petrologic and Stratigraphic Studies

  • Magma Mixing and Crystal Fractionation
  • Experimental Petrology
  • Stratigraphic Correlations
  • Melt Inclusions in Granites and Xenolithic Ejecta




    Adapted from: Lowenstern, J.B.(1995) Applications of silicate melt inclusions to the study of magmatic volatiles. In: Thompson, J.F.H. (ed.) Magmas, Fluid and Ore Deposits. Mineralogical Association of Canada Short Course 23, 71-99.

    This article is adapted from Chapter 4 of Volume 23 of the Geological Association of Canada/ Mineralogical Association of Canada (GAC/MAC) Short Course Series. For more information, please refer to: Lowenstern (1995)

    Table 1: Data obtainable and not obtainable from silicate-melt inclusions.

    Table 2: Volatile concentrations in a variety of recently studied silicic magmas, as determined by analysis of silicate MI.

    Table 3. Summary of recent studies of volatile concentrations and saturation pressures in unleaked MI from high-silica rhyolites.

    Figure 1. Melt inclusions in quartz.

    Figure 2. Growth forms of crystals that trap MI.

    Figure 3. Hourglass inclusions.

    Figure 4. PT behavior of MI.

    Figure 5. Homogenization of an MI.

    Figure 6. Decrepitation of an MI.

    Figure 7. Crystallization of an MI.

    Figure 8. H2O vs. CO2 for a group of MI from the Pine Grove system, UT.

    Figure 9. Features within a vapor bubble.

    Other Photos of Melt Inclusions. Cool Pics!