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Mineral-Hosted Melt Inclusion

How Do We Read The Stories They Have To Tell?

Woods Hole Oceanographic Institution, Woods Hole, Mass., USA

August 10-12, 2018

Small pockets of melt entrapped within growing mineral grains (mineral-hosted melt inclusions) are commonly used to study everything from mantle heterogeneity to preeruptive magmatic volatiles. The information recorded in melt inclusions is unique because entrapped melts are physically shielded from most interactions with the external environment by the host mineral. Melt inclusion studies require careful sample preparation, application of state-of-the-art analytical methods, and meticulous attention to potential artifacts related to post-entrapment processes. As analytical techniques progress and our understanding of post-entrapment processes evolve, it is important that the rapidly growing melt inclusion community periodically assess the state of the field.

This workshop provides those who study melt inclusions - or would like to - with the opportunity to take stock of available analytical tools and protocols for dealing with complications such as post-entrapment crystallization, diffusive re-equilibration, and the presence of vapor bubbles. Specific topics to be discussed include: What are the relative strengths and weaknesses of Fourier transform infrared spectroscopy, secondary ion mass spectrometry, and laser-ablation inductively coupled plasma mass spectrometry? What are best practices for reconstructing total C02 when vapor bubbles are present? How reliable are H20 concentrations and the oxidation state of Fe recorded in melt inclusions?

One objective of the workshop is to develop guidelines for publication of data from melt inclusion studies to be summarized in a collegial manuscript that the organizers will submit for publication shortly after the workshop.


Workshop Organizers

  • Glenn Gaetani
    Woods Hole Oceanographic Institution, USA
  • Estelle Rose-Koga
    Université Clermont Auvergne, France
  • Paul Wallace
    University of Oregon, USA
  • Anne-Sophie Bouvier
    University of Lausanne, Switzerland