The goal of this session is to reconcile short-time/small-scale and long-time/large-scale observations, including geodynamic processes such as subduction, collision, rifting or mantle lithosphere interactions. Despite the remarkable advances in experimental rock mechanics, the implications of rock-mechanics data for large temporal and spatial scale tectonic processes are still not straightforward, since the latter are strongly controlled by local lithological stratification of the lithosphere, its thermal structure, fluid content, tectonic heritage, metamorphic reactions and deformation rates.

Mineral reactions have mechanical effects that may result in the development of pressure variations and thus are critical for interpreting microstructural and mineral composition observations. Such effects may fundamentally influence element transport properties and rheological behavior.
Here, we encourage presentations focused on the interplay between metamorphic processes and deformation on all scales, on the rheological behavior of crustal and mantle rocks and time scales of metamorphic reactions in order to discuss
(1) how and when up to GPa-level differential stress and pressure variations can be built and maintained at geological timescales and modelling of such systems,
(2) deviations from lithostatic pressure during metamorphism: fact or fiction?,
(3) the impact of deviations from lithostatic pressure on geodynamic reconstructions.
(4) the effect of porous fluid and partial melting on the long-term strength.
We therefore invite the researchers from different domains (rock mechanics, petrographic observations, geodynamic and thermo-mechanical modelling) to share their views on the way forward for improving our knowledge of the long-term rheology and chemo-thermo-mechanical behavior of the lithosphere and mantle.

Co-organized as EMRP1.61/GMPV7.8/TS3.6
Convener: Yury Podladchikov | Co-conveners: Shun-ichiro Karato, Magdalena Scheck-Wenderoth, Lucie Tajčmanová
| Fri, 12 Apr, 10:45–12:30, 14:00–15:45, 16:15–18:00
Room D2
| Attendance Fri, 12 Apr, 08:30–10:15
Hall X2

Friday, 12 April 2019 | Room D2

Chairperson: Shun-ichiro Karato, Oliver Plümper
10:45–11:00 |
| Highlight
Lorenzo Giuseppe Candioti, Stefan Markus Schmalholz, and Thibault Duretz
11:00–11:15 |
Seemingly disparate temperatures recorded by coexisting granulite facies lithologies
Simon Schorn and Johann Diener
11:15–11:30 |
Xin Zhong, Niels Andersen, Marcin Dabrowski, and Bjørn Jamtveit
11:45–12:00 |
Stefan Markus Schmalholz, Evangelos Moulas, Yuri Podladchikov, and Annelore Bessat
12:00–12:15 |
| solicited
Oliver Plümper, Floris Teuling, David Wallis, and Thomas Müller
12:15–12:30 |
| solicited
Jo Moore, Andreas Beinlich, Hakon Austrheim, and Andrew Putnis
Lunch break
Chairperson: Lucie Tajcmanova, Taras Gerya
14:00–14:15 |
| solicited
Nadege Hilairet, Thomas Ferrand, Alexandre Schubnel, Tommaso Mandolini, Sésbastien Merkel, Paul Raterron, and Wilson Crichton
14:15–14:30 |
Sebastian Cionoiu, Evangelos Moulas, and Lucie Tajcmanova
14:30–14:45 |
Benjamin Malvoisin, Håkon Austrheim, György Hetényi, Julien Reynes, Jörg Hermann, Lukas P. Baumgartner, and Yury Podladchikov
14:45–15:00 |
Johannes C. Vrijmoed and Yury Y. Podladchikov
15:00–15:15 |
Lyudmila Khakimova, Yury Podladchikov, and Artem Myasnikov
Coffee break
Chairperson: Magdalena Scheck-Wenderoth, Andrew Putnis
16:15–16:30 |
Alina Sabitova, Viktoriya Yarushina, Sergey Stanchits, Artyom Myasnikov, Vladimir Stukachev, and Alexey Cheremisin
16:30–16:45 |
Julien Gasc, Sylvie Demouchy, Fabrice Barou, Patrick Cordier, and Sanae Koizumi
16:45–17:00 |
Antoine Jacquey and Mauro Cacace
17:00–17:15 |
| Highlight
Sarah Incel, Alexandre Schubnel, Timm John, Loïc Labrousse, Nadège Hilairet, Helen Freeman, Yanbin Wang, François Renard, and Bjørn Jamtveit
17:15–17:30 |
| solicited
Dilatant Rupture of Compressed Interfacial Regions
Patrick Selvadurai and Paul Selvadurai
17:30–17:45 |
| solicited
| Highlight
Jérôme Aubry, François-Xavier Passelègue, Damien Deldicque, Frédéric Girault, Samson Marty, Abdeltif Lahfid, Harsha Bhat, Javier Escartin, and Alexandre Schubnel
17:45–18:00 |
Dániel Kiss, Lorenzo G. Candioti, Thibault Duretz, Yury Podladchikov, and Stefan M. Schmalholz