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IUGG 2011 Session: V06 THE RHEOLOGY OF MAGMA
From: Daniele Giordano <dgiordano@xxxxxxxxxxx>
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Dear colleagues,
We would like to draw your attention to the following session of the upcoming IUGG meeting, which will be held in Melbourne, Australia (28 June – 7th July 2011). We encourage you to submit an abstract (deadline is January 17, 2011), and look forward to seeing you in Australia!
V06: THE RHEOLOGY OF MAGMA
Convenors: Daniele Giordano (Spain), Yan Lavalleé (Germany), Claudia Romano (Italy)
Scope: The vast majority of magma transport processes of relevance to planetary magmatism and volcanism involve the quantitative estimation and understanding of rheological properties evolution. The visco-elastic properties of naturally-occurring silicate magmas can span more than 15 orders of magnitude primarily in response to variations in temperature, pressure, melt composition and proportions and the size and shape distributions of suspended solids and/or exsolved fluid phases, generating large and strongly nonlinear changes of the viscosity of magmas as well as large variations of the distribution and content of phases. The high-stress field in volcanic conduit or in the deep mantle lithosphere can also result in complex non-Newtonian rheology playing important roles on the dynamic of magma ascent and fragmentation. The accurate description of dynamic processes such as melt production/extraction, the propagation and ascent of melt or magma filled cracks, the convective dynamics of magma bodies, the way gases escape toward the surface of a planet, the eruptive style and eruptive style transitions cannot be quantitatively addressed unless accurate constitutive rheological relations are provided. An approach based on both theory and experiment has proven to be most fruitful in the search for generally applicable models.
We welcome all contributions addressing these and related topics, especially those that combine natural observations with well-constrained experiments or numerical models.
Keynote Speakers: Professor Donald B Dingwell (Ludwig Maximilians University, Munich) & Dr. Luca Caricchi (Bristol University, England)
Further details on this and other IUGG symposia can be found at
http://www.iugg2011.com/program-iavcei.asp.
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