4th CREEP workshop at Les Houches

CREEP Final Workshop

Ecole de Physique des Houches (F)

27 January – 1 February 2019


Monday 28 January: Rheology of the (lithospheric and convecting) mantle 1

8h45-9h: Opening by the  ITN CREEP coordinator – Andréa Tommasi (Geosciences Montpellier, F)

9h00-10h00: Lars Hansen (Univ. Oxford, UK) – Main achievements and burning issues on the rheology of the upper mantlevideo of the presentation

10h15-12h15: CREEP ESR presentations :

  1. Manuel Thieme (Géosciences Montpellier, F) – Viscous and frictional strength of the lithospheric mantle: insights from deformation experiments video of the presentation
  2. Lucan Mameri (Géosciences Montpellier, F) – On the role of frozen olivine texture in the formation of linear belts of intraplate seismicity video of the presentation
  3. Gianluca Gerardi (FAST Orsay, F) – On the dynamics of subduction and the effect of subduction zones on mantle convectionvideo of the presentation
  4. Nicolo Sgreva (FAST Orsay, F) – Scale-dependent brittle-ductile rheology: insights from laboratory experimentsvideo of the presentation

17h15-18h15: Sébastian Merkel (Univ. Lille, F) – Phase transitions in the mantle

18h15-19h15: CREEP ESR presentations :

  1. Jana Schierjott (ETH, CH) – Influence of grain size evolution on regional and global scale numerical models: Can we better explain transform fault initiation & Large Low Shear Velocity Provinces development?
  2. Angelo Pisconti (Univ. Munster, D) – Constraining the style of anisotropy and mineralogy in the lowermost mantle using a single seismic path


Tuesday 29 January: Rheology of the (lithospheric and convecting) mantle 2

9h-10h: Patrick Cordier (Univ.Lille, F) – Rheology of mantle minerals: constraints from atomistic and dislocation dynamics modelsvideo of the presentation

10h-10h30: Fanny Garel (Géosciences Montpellier, F) – Insights from geodynamical models using a single parameterization for dislocation glide and creep: The lithosphere-asthenosphere boundaryvideo of the presentation

10h30-12h15: Discussion session: “Mantle rheology: flow laws producers vs. users”

17h15-19h30: 2-minute poster presentations followed by poster session


Wednesday 30 January: Faults rheology and dynamics                       

9h-10h: Einat Aharonov (Hebrew Univ Jerusalem) – A physical model of rock friction: from rate and state to the brittle-ductile transition video of the presentation

10h15-12h15: CREEP ESR presentations :

  1. Giacomo Pozzi (Univ. Durham, UK) – From cataclasis to viscous flow: the coseismic weakening of carbonate-hosted faults video of the presentation
  2. Gabriel Meyer (UCL, UK) – Fault reactivation at the brittle-ductile transition – video of the presentation
  3. Simon Preuss (ETH, CH) – How faults grow (a)seismically into complex networks
  4. Elenora Van Rijsingen (Univ. Roma Tre, I) – Subduction Interface Roughness and Megathrust Earthquakes: Insights from Natural Data and Analogue Models

17h15-18h15: Chris Marone (Penn State Univ., USA) – Friction laws for the spectrum of fault slip modes: from slow earthquakes to elastodynamic rupture video of the presentation

18h15-19h30 : Discussion session: “Open issues on fault rheology”


Thursday 31 January: Faults, fractures, and “applied” rheology              

9h-10h: Claudia Trepmann (Munchen Univ, D): Coseismic loading and postseismic relaxation below the seismogenic zone recorded by mylonites from the DAV shear zone, Eastern Alpsvideo of the presentation

10h15-11h45: CREEP ESR presentations :

  1. Thomas Loriaux (Univ. Bristol , UK) – Fracture characterization: From a wave-cut platform to a geothermal reservoir
  2. Wen Zhou (Univ. Utrecht, NL) – Seismic velocity and signal signatures of the Groningen gas field 
  3. Linfeng Ding (Univ. Mainz, D) – Rheology and deformation of glass under extreme conditions

17h15-18h15: Janos Urai (Aachen Univ., D): Hysteresis in rheology and fluid flow in rock salt: from experiment to applicationvideo of the presentation

18h15-19h15: CREEP ESR presentations:

  1. Caspar Sinn (Univ. Utrecht, NL) – Effects of Plastic Deformation on the Transport Properties of Rocksalt – video of the presentation
  2. Philipp Prasse (Univ. Bristol , UK) – Seismic anisotropy in deforming salt – video of the presentation


Friday 1st February: Feedbacks between melts and deformation         

9h00-10h00: Boris Kaus (Univ. Mainz, D) – Progress and challenges in modelling the magmatic system from mantle to atmosphere video of the presentation

10h00-11h00: Wenlu Zhu (Univ. Maryland, USA) – Permeability and 3-Dimensional Melt Distribution of Partially Molten Mantle Rocksvideo of the presentation

11h00-11h30: Marcel Thielmann (Bayerisches Geoinstitut, DE) – Deforming two-phase media: From Topology to Rheology video of the presentation

11h30-12h15: Final discussion


Posters:

  1. Joseph Asplet (Univ. Bristol, UK) – Resolving discrepant shear wave splitting as a probe of lowermost mantle anisotropy
  2. Suzanne Atkins (ENS Paris, F) – D-rex anisotropy calculations for the impatient
  3. Jianye Chen (Univ. Utrecht, NL) – Microphysical modeling of fault friction
  4. Kar-wai Cheng (ETH, CH) – Microphysical modeling of fault friction
  5. Emmanuel David (UCL, UK) – Micromechanics of deformation in antigorite
  6. Anna Gulcher (ETH, CH) – Effects of composition-dependent rheology on mantle mixing
  7. Mark Jefferd (UCL, UK) – The temperature dependence of time-dependent sandstone deformation
  8. Marco Antonio Lopez-Sanchez (Geosciences Montpellier, F) – Preliminary results on magnesium (AZ31) in situ annealing experiments in the SEM-EBSD
  9. Georg Reuber (Univ. Mainz, DE) – Constraining the dynamics of the present-day Alps with 3D geodynamic models (Model version 0.2)
  10. Nicolas Riel (Univ. Mainz, DE) – Modelling reactive melt flow in deep crustal hot zone: the role of melt:rock ratio
  11. Lisa Rummel (Univ. Mainz, DE) – Insights into the compositional evolution of crustal magmatic systems investigated by coupled petrological-geodynamical model
  12. Morvarid Saki (Univ. Munster, D) – Investigating deformation above the transition zone using underside reflections
  13. Catherine Thoraval (Geosciences Montpellier, F) – Rheological feedbacks: how they arise from olivine creep mechanisms and govern plate and mantle dynamics

Find all recorded presentations at the ITN CREEP youTube channel!

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