Tectonic plates sinking over millions of years? Megaearth-quakes & tsunamis? Global fluxes of elements?… How do stresses and energy release, via earth-quakes and fluid-mediated mass transfer, interact on such varied spatial and temporal scales (from 10-4 to 106-7 yr)? Time to ZIP (Zoom In between Plates), into the subduction plate interface!
Several ZIP fellows and scientists contribute to this year’s EGU General Assembly in Vienna and will present their work between the 18th and 22nd of April. We have compiled all ZIP presentations below and are looking forward to your visit as well as fruitful discussions with you.
Monday, 18th of April
||EGU2016-6438 (Poster – Session GMPV5.8/EMRP4.10/TS1.7: Pores, Cracks, Fluids & Permeability in Crustal, Magmatic and Volcanic Environments; Room L7)
Watching dehydration: transient vein-shaped porosity in the oceanic mantle of the subducting Nazca slab
Wasja Bloch, Timm John, Jörn Kummerow, Peter Wigger, Pablo Salazar, and Serge Shapiro
Tuesday, 19th of April
||EGU2016-9124 (Talk – Session GD5.3/EMRP4.4/GMPV2.4/SM6.10: Subduction dynamics from surface to deep mantle; Room L1)
Accretion/underplating, detachment and exhumation: short/long-term rheology of the subduction plate interface
Philippe Agard, Samuel Angiboust, Alexis Plunder, Stéphane Guillot, Philippe Yamato, Onno Oncken, Jonas Ruh, Evgueni Burov, and Guillaume Bonnet
||EGU2016-6811 (Talk – Session GD5.3/EMRP4.4/GMPV2.4/SM6.10: Subduction dynamics from surface to deep mantle; Room L1)
Insights into a fossil plate interface of an erosional subduction zone: a tectono-metamorphic study of the Tianshan metamorphic belt.
Lea Bayet, Lowen Moritz, Jilei Li, Tan Zhou, Philippe Agard, Timm John, and Jun Gao
||EGU2016-14060 (Poster – Session TS2.3/EMRP4.13, Strain localization from the mid-crust to the upper mantle: brittle-ductile transition and ductile shear zones in nature, experiments and theory; Hall X2 – X2.102)
Eclogitic breccia from the Monviso meta-ophiolite complex: field and petrographic evidences of multiple-stage eclogite-facies brecciation
Michele Locatelli, Anne Verlaguet, Laura Federico, and Philippe Agard
Wednesday, 20th of April
||EGU2016-4235 (Talk – Session GMPV4.4/ERE1.13: Hydrothermal systems: fluid sources and pathways, flux estimates, and economic potential; Room L7)
Li-chronometric constraints on the duration of fluid-rock interaction
Timm John, Andreas Beinlich, Stephan Taetz, Yuri Podladchikov, and Tomas Magna
||EGU2016-7219 (Poster – Session GMPV1.1, Open Session on Geochemistry, Mineralogy, Petrology and Volcanology; Hall X2 - X2.344)
Major to ultra trace element bulk rock analysis of nanoparticulate pressed powder pellets by LA-ICP-MS
Daniel Peters and Thomas Pettke
Thursday, 21st of April
||EGU2016-14952 (Talk – Session TS6.1/GD6.5/SM6.17, Dynamics and Structure of the Mediterranean Collisions and Back-arcs; Room G2)
Calabrian Arc Hazards in Ionian and Tyrrhenian Seas: First results from the CHIANTI cruise
Cesar R. Ranero, Valenti Sallares, Ingo Grevemeyer, Nevio Zitellini, and Chianti Scientific Parties
||EGU2016-4680 (Talk – Session NH5.1, Tsunami; Room N1)
Relocation of the Mw 6.4 July 1, 2009 earthquake to the south of Crete and modeling of its associated small tsunami
Gian Maria Bocchini, Gerassimos A. Papadopoulos, Tatiana Novikova, Vassilis K. Karastathis, Aggelos Mouzakiotis, and Nikolaos Voulgaris
||EGU2016-5743 (Poster – Session GMPV4.1/TS2.5, Chemo-mechanical feedback between mineral reactions, stress generation, deformation and mass transport in the presence of fluids; Hall X2 – X2.123)
Deciphering the dynamics of olivine nucleation and growth during antigorite breakdown
Nicole Dilissen, Wolf-Achim Kahl, Carlos J. Garrido, Vicente López Sánchez-Vizcaíno, and Károly Hidas
||EGU2016-13237 (Poster – Session SM5.2, Imaging and joint inversion in applied and exploration geophysics; Hall X1 - X1.253)
Improvements of Travel-time Tomography Models from Joint Inversion of Multi-channel and Wide-angle Seismic Data
Slaven Begović, César Ranero, Valentí Sallarès, Adrià Meléndez, and Ingo Grevemeyer
||EGU2016-15585 (Poster – Session TS4.1/GD8.10/NH4.15/SM6.5, The Interplay between Earthquakes, the Seismic Cycle and Long-term Deformation; Hall X1 – X1.323)
Towards three-dimensional continuum models of self-consistent along-strike megathrust segmentation
Casper Pranger, Ylona van Dinther, Dave May, Laetitia Le Pourhiet, and Taras Gerya
||EGU2016-13950 (Poster – Session TS6.1/GD6.5/SM6.17, Dynamics and Structure of the Mediterranean Collisions and Back-arcs (co-organized); Hall X2 – X2.13)
Similarity and Cluster Analysis of Intermediate Deep Events in the Southeastern Aegean
Marija Ruscic, Dirk Becker, Andrea Brüstle, and Thomas Meier
Friday, 22nd of April
||EGU2016-9077 (Talk – Session GD7.1/EMRP4.5/TS8.5, Long-term rheological behavior of the crust and mantle inferred from observations and models at laboratory and geological time and spatial scales (in memory of E. Burov) (co-organized); Room 2.20)
Subduction in fancy: stripping young slabs as a result of similar crust-mantle rheologies
Philippe Agard, Philippe Yamato, Mathieu Soret, Cécile Prigent, Stéphane Guillot, Alexis Plunder, Benoît Dubacq, Patrick Monié, and Alain Chauvet
the Second European Mineralogical Conference will be held in Rimini, Italy, from 11 to 15 September, 2016. The Registration and Call for Abstracts are now open at the address http://emc2016.socminpet.it
The conference is organized on 16 themes with 42 thematic sessions. We would like to draw your attention on the following session:
Click on the image to open the EMC 2016 flyer
P7 Fluids and melts in the subduction factory: genesis and implications
Subduction zones are active geodynamic environments enabling crustal recycing into the mantle and generating new continental crust. Of particular importance is the slab-mantle wedge system at 40-200 km depth. It is increasingly recognized that subduction materials are modified in this region by metamorphism, metasomatism and mechanical mixing with vast implications for the physico-chemical state of subduction zones. At the plate-interface of subduction zones, fluids, melts and rocks derived from subducting lithosphere interact with depleted mantle in a region of strong chemical and physical gradients. These interactions mediate planetary-scale volatile cycling, produce arc magmas and continental crust and yield modified subducted lithosphere and mantle-wedge peridotites whose chemical signals may persist in the deep Earth for billions of years. We welcome all contributions from geochemistry, petrology, experimental, modeling and field studies that address the major processes operating in the subduction system through geologic time from trenches to depths of ~100 km and beyond.
Deadline for abstract submission is May 9
We look forward to attract your interest and see many of you at the session
The ZIP project will hold a meeting prior to the EGU in Vienna on April 17th and interested scientists and students are welcome to participate. This informal mini-workshop will focus on intermediate-depth seismicity but also on what plate interface lithologies might look like, how they react and deform. ZIP fellows and scientists will give insights into recent research projects and subsequent discussions are intended to foster cross-disciplinary interactions between scientists. For a detailed program please see the attached PDF file.
The meeting will take place at the Gasthaus Stafler (5 minutes walk from Meidling Hauptstrasse station (line U4)) and start at 14:30 local time.
We would like to draw your attention to the theme “Subduction” at the 26th Goldschmidt Conference 2016, which will be held in Yokohama (Japan) from June 26th to July 1st.
One of the sessions will be organized by Thomas Pettke, Sarah Penniston-Dorland, Susanne Skora, Tatsuki Tsujimori and Matthias Konrad-Schmolke and feature work from the ZIP project.
We strongly encourage scientists and students to contribute to this session. Abstract deadline is February 26th.
“07b: Geochemical Recycling in Subduction Zones: What Goes in, What Comes Out, and What Happens in between:
This session aims at attracting geochemists and petrologists contributing to our better understanding of geochemical cycling and mass transfer of elements and isotopes in the subduction factory. Such processes are often at the onset of the global-scale dynamics that formed and have modified Earth’s geochemical reservoirs through time. Recent experimental, (micro)analytical and field-based research advances now allow us to gain unprecedented insights into how geochemical cycling has operated to form and continuously modify Earth’s geochemical reservoirs. We invite contributions that focus on what enters subduction zones, how this material evolves with progressive subduction and what is eventually recycled to the continental crust via arc magmatism or back to the convecting mantle. Studies dealing with element abundance and isotope ratio systematics, aqueous and carbonic fluid chemistries, halogens, fluid – solid phase petrology, thermal conditions, modelling, and field-based or experimental investigations are equally appreciated. We particularly encourage contributions that present provocative ideas and concepts, and unconventional approaches, to foster inspiring scientific exchange on the physical and chemical processes operating down to subarc depth.”