Subduction zones are arguably the most important geological features of our planet, where plates plunge into the deep, metamorphic reactions take place, large earthquakes happen and melting induces volcanism and creation of continental crust. None of these processes would be possible without the cycling of volatiles, and this session aims to explore their role in convergent margins. Questions to address include the following. Do Atlantic and Pacific subduction zones cycle volatiles in different ways? What dynamic or chemical roles are played by subducted fracture zones and plate bending faults? How do fluids and melts interact with the mantle wedge and overlying lithosphere? Why do some of the Earth’s largest mineral resources form in subduction settings? We aim to bring together geodynamicists, geochemists, petrologists, seismologists, mineral and rock physicists, and structural geologists to understand how plate hydration/slab dynamics/dehydration, and subsequent mantle wedge melting/fluid percolation, and ultimately melt segregation/accumulation lead to the diverse range of phenomena observed at convergence zones around the globe.

Invited speakers:
Lena Melekhova (Bristol University)
Ingo Grevemeyer (GEOMAR)

Co-organized as GMPV2.6/SM6.6/TS9.14
Convener: Jeroen van Hunen | Co-conveners: Jenny Collier, Colin Macpherson, Andreas Rietbrock, Jamie Wilkinson
| Fri, 12 Apr, 08:30–10:15
Room D2
| Attendance Mon, 08 Apr, 08:30–10:15
Hall X2

Attendance time: Monday, 8 April 2019, 08:30–10:15 | Hall X2

Chairperson: Jamie Wilkinson
X2.211 |
Suzanne Atkins, Andrew Merdith, and Michael Tetley
X2.212 |
| presentation
Patrick Sugden, Ivan P. Savov, Samuele Agostini, Marjorie Wilson, Khachatur Meliksetian, and Ralf Halama
X2.215 |
Jean-Guillaume Feignon, Olivier Roche, Séverine Moune, Nicolas Cluzel, Federica Schiavi, Jorge Clavero, Pierre Schiano, and Marion Auxerre
X2.216 |
Deserpentinized peridotite: a key to understand exhumation process of (possibly high-P) Ray-Iz peridotite massif
Satoko Ishimaru, Rie Sonoda, Makoto Miura, Vladimir Shmelev, and Shoji Arai
X2.217 |
Nicholas Harmon, Catherine Rychert, Stephen Hicks, David Schlaphorst, Lidong Bie, Ben Maunder, Jenny Collier, Andreas Rietbrock, Frank Krüger, Saskia Goes, J Michael Kendall, and Jeroen Van Hunen
X2.218 |
Nicolas Berlie, Boris Kaus, and Horst R. Marschall
X2.219 |
Stephen Hicks, Lidong Bie, Catherine Rychert, Nicholas Harmon, Andreas Rietbrock, Songqiao Shawn Wei, Saskia Goes, Benjamin Maunder, and George Cooper and the the rest of the VoiLA group
X2.220 |
Esther Schwarzenbach, Jilei Li, Timm John, Mark Caddick, Matthew Petroff, and Benjamin Gill
X2.221 |
Shinako Noguchi, Shutaro Sekine, Yoshihiro Sawada, Keiji Kasahara, Shunji Sasaki, Yoshihiro Tazawa, Hiroshi Yajima, Kimiko Ishida, and Shintaro Abe