SEDI is an international scientific organization dedicated to the Study of the Earth’s Deep Interior. The ultimate goal of SEDI is an enhanced understanding of the past evolution and current thermal, dynamical and chemical state of the Earth’s deep interior and of the effect that the interior has on the structures and processes observed at the surface of the Earth.
The 2022 Symposium of SEDI is being held in Zurich, Switzerland, from 11th to 15th of July, 2022. TIMEleSS participants C. Thomas, S. Merkel, and J-K Magali are in to discuss their latest results and understanding of deep Earth processes.
TIMEleSS presentations include
- On the hunt for seismic anisotropy in the lower-mantle from the crystallographic preferred orientation of bridgmanite aggregates induced by large-scale flow, by John Keith Magali et al.
- Microstructures and anisotropy in pyrolite at lower mantle pressures and temperature, by Jeffrey P. Gay, Estelle Ledoux, Matthias Krug, Julien Chantel, Carmen Sanchez-Valle, Sébastien Merkel
- Seismic anisotropy due to textures above and below the 410 km discontinuity, by Morvarid Saki et al
See you in Zürich for a wonderful week!
The Fall Meeting of the American Geophysical Union is on online and everywhere in 2020! The AGU Fall Meeting typically attract over 25 000 registrants from all over the world, in a conference center somewhere in San Francisco, New Orleans, or somewhere else in the United States. This year, the Fall Meeting is fully online and TIMEleSS members are happily joining in for presenting their latest results!
Presentations from the TIMEleSS project include
- DI005-0013 Microstructures induced by the post-garnet transformation in mid-ocean ridge basalt (MORB)
Matthias Krug, Ilya Kupenko, Estelle Ledoux, Jeffrey Gay, Jean-Philippe Perrillat, Julien Chantel, Sergio Speziale, Anna Pakhomova, Sebastien Merkel and Carmen Sanchez-Valle, with poster display on Wednesday, 9 December 2020
- DI029-0018 Olivine to Wadlseyite Transformation in (Mg,Fe)2SiO4 and the 410 km Depth Discontinuity : Experiments and Models
Estelle Ledoux, Jeffrey Gay, Matthias Krug, Julien Chantel, Morvarid Saki, Olivier Castelnau, Damien Jacob, Carmen Sanchez-Valle, Christine Thomas, Sergio Speziale and Sebastien Merkel, with poster on display on Wednesday, 16 December 2020
- MR025-08 Phase Change of Pyrolitic Material: In-situ Transformation and Induced Microstructures at 660 km Depth
Jeffrey Gay, Estelle Ledoux, Matthias Krug, Anna Pakhomova, Ilya Kupenko, Julien Chantel, Carmen Sanchez-Valle and Sebastien Merkel, with the oral session on Wednesday, 16 December 2020
Enjoy your AGU fall meeting!
The fall meeting of the American Geophysical Union is the largest international Earth and space science meeting in the world with approximately 25000 attendees.
2019 is a special year that marks the Centennial for AGU. Monday dec. 9th was a celebration day for Earth Interior studies with a special Centennial session in which TIMEleSS PI S. Merkel was in charge of organizing and chairing part of the day.
Things return to a normal AGU now, with the usual layout for sessions and presentations. The TIMEleSS project will be presented on Thursday morning in session DI41C – A Deep Dive into Lowermost Mantle Processes. Please come by to see the state of our current research!
Students from the “Collège Val de la Sensée” in Arleux (Junior High School) are working on a project related to the famous Jules Vernes book Journey to the Center of the Earth.
On Nov. 25, 2019, they came to the Université de Lille for an example of a university class, as Otto Lidenbrock can teach in the Jules Vernes book. S. Merkel gave them a lecture on the Center of the Earth, as scientists view it and study it today, and how Jules Vernes visionary writings were both close and distant from today’s view of the Earth interior.
TIMEleSS members will be at GeoMünster 2019! GeoMünster 2019 is the Annual Conference of the Deutsche Geologische Gesellschaft – Geologische Vereinigung (DGGV – The German Geological Society) and the Deutsche Mineralogische Gesellschaft (DMG – The German Mineralogical Society). It will be held 22–25 September 2019 at the Münster University, Germany, and will be organized and by the Institutes for Geology and Paleontology, Mineralogy, and Planetology.
TIMEleSS members are organizing a session entitled Minerals in the depths: an experimental approach, with a oral presentation of TIMEleSS student Matthias Krug and a poster from our partner Iliya Kupenko.
See you in Münster in September!
The Colloque de la Sfµ is the meeting of the French microscopy society. It is held annually and mostly focuses on electron microscopy techniques.
Estelle Ledoux, PhD student partially financed by TIMEleSS, presented her results on EBSD analyzes of plastically deformed polycrystalline MgO. The work is a result of a collaboration between the group at the University of Lille and that of L. Miyagi at the University of Utah.
The results of the work will be useful for the TIMEleSS project for addressing properties of the Earth’s lower mantle.
Frederica Rochira was at the EGU General Assembly 2019 in Vienna. EGU brings together geoscientists to one meeting covering all disciplines of the Earth, planetary and space sciences. The meeting is held yearly in Vienna, Austria, and, in 2019, it was attended by 16,273 scientists from 113 countries.
Frederica Rochira presented her works entitled Detecting structures in the mid mantle using out-of-plane signals in the multidisciplinary session Dynamics of the mantle in the Earth and planetary bodies: from magma oceans to the present day.
The session, co-organized by TIMEleSS members, included four oral presentations on Thursday as well as 12 PICO presentations early afternoon on Friday. The session was an opportunity for scientists of various fields of geosciences (seismology, geodynamics, mineral physics) to present the results of her works and discuss their implications for understanding the dynamics of mantles, on Earth and other planetary bodies.
The Fall Meeting of the American Geophysical Union is ongoing in Washington, DC.
TIMEleSS PI Sébastien Merkel is attending the meeting and will present one TIMEleSS related poster,
Multigrain Crystallography Study of Phase Transformation Microstructures in Deep Earth Minerals : Application of the Perovskite to Post-Perovskite Transformation
Sebastien Merkel, Christopher Langrand, Nadege Hilairet
Wednesday, 12 December 2018, 13:40 – 18:00
Convention Ctr – Hall A-C (Poster Hall)
See you there!
TIMEleSS PI’s are calling for abstractsat EGU 2018! Look for session sessions
Deadline for abstracts submission is tomorrow, Wednesday 10 January 2018, 13:00 CET. Hope to see you in Vienna !