Improving the efficiency of wide-angle seismic data inversion through a nonlinear algorithm: case study of the MARCONI-3 profile
DOI:
https://doi.org/10.55407/geogaceta99821Keywords:
Simulated annealing, nonlinear inversion, wide-angle seismic, crustal structureAbstract
Wide-angle seismic reflection/refraction (WA) surveys provide data that can be modeled to obtain lithospheric-scale P-wave velocity (VP) models. The interpretation of these datasets is often performed as a laborious and time-consuming trial-and-error procedure, in which the relevant model parameters (layer thickness and VP) are manually adjusted until the forward modeling matches the observed travel-times. In this work, we present a fully automatic iterative nonlinear approach to invert WA datasets based on the simulated annealing technique. We test our proposed approach with data from the MARCONI-3 WA profile (southern Bay of Biscay) and compare the outcome with an existing detailed interpretation, discussing the similarities between the two models and the agreement between our model and the observed travel-times.
References
Ben-Ameur, W. (2004). Computational Optimization and Applications, 29, 369- 385. https://doi.org/10.1023/B:COAP.0000044187.23143.bd
Cadenas, P., Fernández-Viejo, G., Pulgar, J. A., Tugend, J., Manatschal, G. and Minshull, T. A. (2018). Tectonics, 37(3), 758- 785. https://doi.org/10.1002/2016TC004454
DeFelipe, I., Pedreira, D., Pulgar, J. A., Iriarte, E. and Mendia, M. (2017). Geochemistry, Geophysics, Geosystems, 18(2). https://doi.org/10.1002/2016GC006690
DeFelipe, I., Pulgar, J. A. and Pedreira, D. (2018). Revista de la Sociedad Geológica de España, 31(2), 69-82. https://doi.org/10.13039/501100003329
DeFelipe, I., Pedreira, D., Pulgar, J. A., van der Beek, P. A., Bernet, M. and Pik, R. (2019). Tectonics, 38(9), 3436-3461. https://doi.org/10.1029/2019TC005532
DeFelipe, I., Alcalde, J., Ivandic, M., Martí, D., Ruiz, M., Marzán, I. et al. (2021). Earth System Science Data, 13, 1053-1071. https://doi.org/10.5194/essd-13-1053-2021
Ferrer, O., Roca, E., Benjumea, B., Muñoz, J. A., Ellouz, N., Gallart, J., et al. (2008). Marine and Petroleum Geology, 25(8), 714-730, doi: 10.1016/j.marpetgeo. https://doi.org/10.1016/j.marpetgeo.2008.06.002
Gallart, J., Pulgar, J. A., Muñoz, J. A., Diaz, J., and Ruiz, M. (2020). DIGITAL.CSIC, https://digital.csic.es/handle/10261/222155
Kirkpatrick, S. (1984). Journal of Statistical Physics, 34, pages 975-986. https://doi.org/10.1007/BF01009452
Kirkpatrick, S., Gelatt, C. D., Vecchi, M. P. (1983). Science, 220, 4598, 671-680. https://doi.org/10.1126/science.220.4598.671
Metropolis, N., Rosenbluth, W. A., Rosenbluth, M. N. and Teller, A. H. (1953). Journal of Chemical Physics, 21(6), 1087-1092. https://doi.org/10.1063/1.1699114
Olivar-Castaño, A., Pilz, M., Pedreira, D., Pulgar, J. A., Díaz-González, A., and González- Cortina, J. M. (2020). Journal of Geophysical Research: Solid Earth, 125, 1-20. https://doi.org/10.1029/2020JB019559
Pedreira, D., Pulgar, J. A., Gallart, J., and Díaz, J. (2003). Journal of Geophysical Research: Solid Earth, 108(B4), 1-21. https://doi.org/10.1029/2001JB001667
Pedreira, D., Pulgar, J. A. and Torné, M. (2007). Journal of Geophysical Research: Solid Earth, 112(B12). https://doi.org/10.1029/2007JB005021
Pica, A., Diet, J. P., Tarantola, A. (1990). Geophysics, 55, 3, 266-379. https://doi.org/10.1190/1.1486742
Roca, E., Muñoz, J. A., Ferrer, O., and Ellouz, N. (2011). Tectonics, 30(2), 1-33. https://doi.org/10.1029/2010TC002735
Ruiz, M. (2007). Caracterització estructural i sismotectònica de la litosfera en el domini Pirenaico-Cantàbric a partir de mètodes de sísmica activa i passiva. PhD Thesis, Universitat de Barcelona.
Ruiz, M., Díaz, J., Pedreira, D., Gallart, J., and Pulgar, J. A. (2017). Tectonophysics, 717, 65-82. https://doi.org/10.1016/j.tecto.2017.07.008
Sambridge, M. (2001). Inverse Problems, 17, 387-403. https://doi.org/10.1088/0266-5611/17/3/302
Teixell, A., Labaume, P., Ayarza, P., Espurt, N., de Saint Blanquat, M. and Lagabrielle, Y. (2018). Tectonophysics, 724-725, 146-170. https://doi.org/10.1016/j.tecto.2018.01.009
Tugend, J., Manatschal, G., Kusznir, N. J., Masini, E., Mohn, G., and Thinon, I. (2014). Tectonics, 33(7), 1239-1276. https://doi.org/10.1002/2014TC003529
Zelt, C. (1999). Geophysical Journal International 139(1), 183-204. https://doi.org/10.1046/j.1365-246X.1999.00934.x
Zelt, C., and Smith, R. (1992). Geophysical Journal International, 108(1), 16 - 34. https://doi.org/10.1111/j.1365-246X.1992.tb00836.x
Downloads
Published
How to Cite
Issue
Section
License
Until the year 2023 the author assigned the copyright to the Sociedad Geológica de España, but from 2024 the author retains the copyright and grants the Sociedad Geológica de España the right of first publication and non-exclusive distribution of each article in all current or future media, while transferring, also non-exclusively, the commercial rights for the distribution of the printed version of Geogaceta. On the other hand, the articles, from the year 2023, are available simultaneously with their publication, under the Creative Commons CC BY-NC-SA 4.0 license, which allows copying, transforming the work, but if any transformation is distributed, the new work must be distributed under the same license, and never for commercial purposes, while acknowledging the authorship and original publication in GEOGACETA, so that the only role of copyright is to give authors control over the integrity of their works and the right to be properly acknowledged and cited.
