The 8th France-Taiwan Earth Sciences Symposium "Geodynamics and extreme events in Taiwan and South-East Asia" is aimed at fostering exchanges on advanced knowledge, data, methodologies focused on Natural Hazards, Resources, Geophysics & Geodynamics research. Main questions to be addressed by the conference are :
How our advanced knowledge of the deep structure of rifted margins, mountain ranges and subduction zones allows reassessing earthquake-related risks ? How integration of cutting-edge modelling techniques on landscape, climate and tectonic processes improve natural risk assessment and resources exploration ? Are these knowledges in Taiwan transferrable to other geological settings ?
The Venue : Beaumont Palace - Historic Conference Center, Allée Alfred de Musset, 64000 Pau - France
Gala dinner : Organised at the Domaine du Cinquau - Chemin Cinquau - 64230 Artiguelouve
The field trip will explore the Pyrenean geology and put emphases on rift and mountain bulding processes through a selection of stops in France and Spain.
Departure from Pau on October 17th - return to Pau on October 19th. Maximum 30 participants. Provisional excursion directions here. More details on the organisation and fees will be provided soon.
Organisation: Frederic Mouthereau (UPS) and Charles Aubourg (UPPA).
The aim of Alpes/Montagne Noire Field Trip is to compare different structural levels of orogens with Taiwan.
If the Massif Central part (South Central Massif, Southern France) will focus on the Montagne Noire, the complete N-S geological section from the Switzerland Jura to Italy through the major structural domains will be described and commented.
Organisation: Benoit Deffontaines (UPEM), Jacques Malavieille (Univ. Montpellier - Montagne Noire), and Jon Mosar (Freiburg Univ - Alpes).
The session is aimed at gathering geophysical studies on imaging rifting with application to the South China Sea, Taiwan and South East Asia, more broadly. Recent academic and industry-based research on the South China Sea rifted margin, including results provided by expedition IODP Leg 367-368 and ongoing geophyscial surveys in the Taiwan region are particularly welcome.
Role of plate kinematics, deep slab dynamics and initial rift architecture on subduction and mountain building processes are explored. We welcome contribution from multidisciplinary studies (field-based geology, geophysical imagery, analogue and numerical modelling, geochronology) with application to Taiwan and other mountain ranges.
The session is opened to a wide range of studies that focus on the earthquake cycle in active collision zones and the potential impacts and feedbacks with surface processes. This session welcome studies using geophysical methods and remote sensing (e.g. satellite imagery, InSAR, seismology, geodesy, marine and onshore geophysics), field analysis and dating (e.g. paleoseismology, cosmogenic nuleides, OSL) and numerical or experimental modelling to investigate these issues.
This session focuses on oceanography, meteorology and past climate reconstructions in the Taiwan region and South Asia. Research focused on seasonal variations in rainfall, sediment transport and changes in ocean circulation caused by monsoonal climate and Quaternary glaciation, including the 2018 HydroSed campaign, are particularly welcome.
Seismic attenuation brings key information that may be used to constrain the mantle structure and composition at different scales and depths, for instance the presence of water in the transition zone, the presence of melt in subduction zones (including around Taiwan), and the temperature field of the deep mantle. Due to difficulties in isolating its intrinsic causes (mainly, local physical changes) and its extrinsic contributions (scattering and other wave-propagation effects), seismic attenuation has been underutilized. Recent advances, in particular in waveform inversion, now allow a more comprehensive determination of seismic attenuation, and opens the way to structural interpretations. Because it may affect various region in the mantle, from subduction zones at the top to the lowermost mantle, seismic attenuation covers a wide range of the topics addressed by the LIA.