216 Geophysics in Geothermal Exploration part can be exploited. This chapter illustrates the diversity and complementarity of the passive seismic methods which provide many means of obtaining subsurface information while all relying on the recording of the same input data that is the ambient seismic signal. It is the view of the authors that geothermal exploration and surveillance – as many other geoscience fields – can, and will benefit from full passive seismic implementation, where the multi-purposing of passive seismic networks to integrate multiple approaches is key to a complete seismic assessment of geothermal assets. References Antayhua-Vera Y.T. (2017) Caracterización sismológica, areomagnética y magnetotelúrica del Campo Volcánico y Geotérmico de las Tres Vírgenes (BCS), México. Universidad Nacional Autónoma de México, Mexico. Antayhua-Vera Y.T., Zuñiga F.R., Lermo-Samaniego J., Campos-Enríquez J.O., Quintanar-Robles L. (2022) Spatio-temporal distribution of the b-value in the volcanic complex and geothermal field of Tres Vírgenes; Baja California Sur, Mexico, Journal of South American Earth Sciences 116, 103864. Ars J.-M., Tarits P., Hautot S., Bellanger M. (2024) Geophysical models integration using principal component analysis: application to unconventional geothermal exploration, Geophysical Journal International 239(3), 1789-1798, https://doi. org/10.1093/gji/ggae357. Barmin M., Ritzwoller M., Levshin A. (2001) A fast and reliable method for surface wave tomography, In Monitoring the comprehensive nuclear-test-ban treaty: Surface waves, Springer, pages 1351-1375. Bauer K., Muñoz G., Moeck I. (2012) Pattern recognition and lithological interpretation of collocated seismic and magnetotelluric models using self-organizing maps, Geophysical Journal International 189(2), 984-998, https://doi. org/10.1111/j.1365-246X.2012.05402.x. Bensen G.D., Ritzwoller M.H., Barmin M.P., Levshin A.L., Lin F., Moschetti M.P., Yang Y. (2007) Processing seismic ambient noise data to obtain reliable broadband surface wave dispersion measurements, Geophysical journal international 169(3), 1239-1260. Benton A., García F., Silis J., Cruz S. (2011) Estudio geohidrologico de la cuenca de Las Tres Vírgenes, B.C.S. Report DEX-DGL-TV-16-11, Gerencia de Proyectos Geotermoelectricos. Comision Federal de Electricidad, p. 196. Boschi L., Magrini F., Cammarano F., van Der Meijde M. (2019) On seismic ambient noise cross-correlation and surface-wave attenuation, Geophysical journal international 219(3), 1568-1589.
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