Intitulé du sujet: Inversion of seismic waveforms for petrological structure models and their validation via geodynamic-seismic simulation
Sujet
Codirection: Cecile Prigent (Institut de physique du globe de Paris, Universit?e Paris Cite)
Nombre de mois: 36 mois
Ecole Doctorale: ED 560 - Sciences de la Terre et de l'environnement et Physique de l'Univers
Unité de recherche et équipe:
Équipes de sismologie et de géosciences marines, Institut de physique du globe de Paris, Université Paris Cité, UMR7154
Coordonnées de l’équipe:
Nobuaki Fuji, nobuaki@ipgp.fr, maître de conférences HDR
Cécile Prigent, prigent@ipgp.fr, maître de conférences
Secteur: Sciences Physiques et Ingénierie / Physical sciences and Engineering
Langue attendue: Anglais
Niveau de langue attendu: B2
Description
Description du sujet:
The project aims to develop a multi-stage inversion process to estimate anisotropic seismic parameters in order to infer petrological, and dynamical characteristics of subsurface structures. Ultimately, we aim to create robust geodynamical models that link seismic data with petrological and rheological parameters. This method will be applied to study the composition and structure of the channel flow in the Tibetan Plateau, ultimately evaluating the feasibility of the channel flow model in the Plateau’s evolution and its extent of influence.
The details can be found in the attached pdf file.
Compétences requises:
The candidate should have a solid background in geochemistry, petrology, geology and quantitative seismology in order to pursue this complex interdisciplinary project.
Références bibliographiques:
L. H. Royden et al., science 276, 788–790 (1997).
Q. Xu et al., Geochemistry, Geophysics, Geosystems 20, 883–894 (2019).
N. M. Shapiro, M. H. Ritzwoller, P. Molnar, V. Levin, Science 305, 233–236 (2004).
W. Wei et al., Science China Earth Sciences 53, 189–202 (2010).
S. Li et al., Geophysical Journal International 153, 289–304 (2003).
J. Mao, F. P. Bierlein, Z. Li, Z. Hou, presented at the Mineral Deposit Research: Meeting the Global Challenge: Proceedings of the Eighth Biennial SGA Meeting Beijing, China, 18–21 August 2005, pp. 1243–1245.
K. D. Nelson et al., science 274, 1684–1688 (1996).
X. Bao et al., Earth and Planetary Science Letters 415, 16–24 (2015).
T. Wu, C. Zou, Y. Hua, M. Chen, Terra Nova (2024).
Z. Yuan et al., Tectonophysics 890, 230485, issn: 0040-1951, (https://www.sciencedirect.com/science/article /pii/S0040195124002877) (2024).
Y. Yang et al., Journal of Geophysical Research: Solid Earth 117, eprint: https://agupubs.onlinelibrary.wiley.co m/doi/pdf/10.1029/2011JB008810, (https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2011JB008810) (2012).
X. Guo et al., Earth and Planetary Science Letters 379, 72–80 (2013).
Z. Zhang et al., Earth and Planetary Science Letters 408, 370–377 (2014).
M. R. Agius, S. Lebedev, Geophysical Journal International 210, 1823–1844 (2017).
J. Hubbard, J. H. Shaw, Nature 458, 194–197 (2009).
N. Harris, Journal of the Geological Society 164, 511–523 (2007). 4
C. Groppo, F. Rolfo, A. Indares, Journal of Petrology 53, 1057–1088 (2012).
S. Konda, P. K. Patro, K. C. Reddy, N. Babu, Journal of Geodynamics 155, 101961 (2023).
Q. Xiao, G. Yu, G. Shao, M. Li, J. Wang, Journal of Geophysical Research: Solid Earth 123, 7266–7284 (2018).
N. Harris, J. Massey, Tectonics 13, 1537–1546 (1994).
J. King et al., Geology 35, 727–730 (2007).
L. Zeng, L.-E. Gao, K. Xie, J. Liu-Zeng, Earth and Planetary Science Letters 303, 251–266 (2011).
J. A. Connolly, Earth and Planetary Science Letters 236, 524–541 (2005).
A. Kumar et al., Geochemistry, Geophysics, Geosystems 21, e2019GC008777 (2020).
M. Sonnet et al., Geochemistry, Geophysics, Geosystems 24, e2022GC010784 2022GC010784, e2022GC010784, eprint: https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2022GC010784, (https://agupubs.onlinelibrar y.wiley.com/doi/abs/10.1029/2022GC010784) (2023).
Q. Y. Liu et al., Nature Geoscience 7, 361–365 (2014).
V. Monteiller, S. Chevrot, D. Komatitsch, N. Fuji, Geophysical Journal International 192, 230–247 (2013).
S. Yuan, N. Fuji, S. C. Singh, Geophysics 86, 1–55 (2021).
J. Mansour et al., Journal of Open Source Software 5, 1797 (2020).