Dear colleagues,
we would like to invite you to consider submitting an abstract to the following session at the EGU 2020 Genearal Assembly (Vienna, Austria, 3-8 May 2020):
GMPV7.3 “Preservation of metamorphic assemblages in deforming rocks and implications for their rheology
Keynote speaker: Philippe Goncalves (University of Franche Comté)
Conveners: Laura Airaghi (University of Orléans), Francesco Giuntoli (University of Bologna), Jaroslaw Majka (Uppsala University).
This session seeks to deepen our understanding of how the preservation of metamorphic minerals and the scale of chemical equilibrium may change with strain, chemical differences and fluid availability as well as the impact of these factors on the rock rheology. We are looking for exciting process and regional studies that strengthen our understanding of the link between metamorphism, equilibrium and small- and large-scale structures.
You will find the full description of the session below as well as at the following link: https://meetingorganizer.copernicus.org/EGU2020/session/35216
Deadline for support applications is December 1st, 2019
Deadline for abstract submission is January 15th, 2020 (13:00 CET)
We are looking forward to meeting you in Vienna,
Sincerely,
Laura, Francesco and Jaroslaw
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GMPV7.3 - Preservation of metamorphic assemblages in deforming rocks and implications for their rheology
Unravelling the behaviour of the deforming lithosphere in geological settings relies on the reconstruction of pressure-temperature-deformation paths from the preserved metamorphic mineral assemblages. However, polyphase metamorphism and deformation can greatly influence the extent of mineral re-equilibration and the preservation of disequilibrium assemblages, with major implications for the reconstruction of metamorphic paths and for the mechanical behaviour of rocks. This session aims to deepen our understanding of how the preservation of metamorphic minerals and the scale of chemical equilibrium may change with strain, chemical differences and fluid availability. We welcome a wide range of contributions that combine petrology, mineral composition, thermodynamic modelling, trace elements and isotope geochemistry with deformation from the micro- to the orogen-scale. Part of the session will be dedicated (but not limited) to studies that investigate the effects of growth and preservation of metamorphic minerals on the rock rheology in a variety of tectonic settings.
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