Session 8j. Glasses and melts at high pressure

Planets were born molten and during this magma ocean stage, silicate melts were at the interface between the most external and deepest reservoirs (e.g. atmosphere and core), hence controlling the transfer of matter and heat. In the present day Earth, occurrences of magmas and/or fluids at depth range from subsurface conditions down to the core mantle boundary, playing a key role in a number of issues such as the deep cycle of volatile elements or the heat escape from the core. The knowledge of the effect of pressure on melt generation, storage, transport, and crystallization is thus fundamental to our understanding of the thermal and chemical evolution of the Earth.

Although silicate melts are very challenging materials to study under pressure, the last decade has seen tremendous advances obtained either directly on the melt phase or on glasses. The purpose of this session is to highlight state-of-the-art experimental high pressure studies on silicate melts, fluids and glasses. We welcome all contributions on the nature of these materials throughout the mantle pressure regime: what is their structure, their macroscopic physical properties (density, transport properties), their melting relationships, and how they depend on the chemical composition with a special emphasis on the critical role of Fe.

Co-conveners: 

Chrystele Sanloup (University of Edinburgh)  chrystele.sanloup@ed.ac.uk
Nobumasa Funamori (University of Tokyo)  funamori@eps.s.u-tokyo.ac.jp

Keynote speaker: Motohiko Murakami (Tohoku University)
Invited speakers: Dylan Spaulding (Harvard University, shock-wave lab),
Yanbin Wang (GSECARS, University of Chicago, multi-anvil lab)

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