@article{fdi:010055899,
  title = {{H}igh-resolution shallow seismic tomography of a hydrothermal area : application to the {S}olfatara, {P}ozzuoli},
  author = {{L}etort, {J}. and {R}oux, {P}. and {V}andemeulebrouck, {J}. and {C}outant, {O}. and {C}ros, {E}. and {W}athelet, {M}arc and {C}ardellini, {C}. and {A}vino, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {S}olfatara is one of the major volcanoes of the {P}hlegrean {F}ields ({C}ampi {F}legrei) volcanic complex, and it is located in a densely populated area a few kilometres west of the city of {N}aples. {I}t is an active resurgent caldera that has been characterized by a rich history of surfaceground deformation and soil diffuse degassing and fumarolic emissions, which are indications of the top of a hydrothermal plume. {A} seismic survey was completed in {M}ay 2009 for the characterization of the main subsurface features of the {S}olfatara. {U}sing the complete data set, we have carried out surface wave inversion with high spatial resolution. {A} classical minimization of a least-squares objective function was first computed to retrieve the dispersion curves of the surface waves. {T}hen, the fitting procedure between the data and a three-sediment-layer forward model was carried out (to a depth of 7 m), using an improved version of the neighbourhood algorithm. {T}he inversion results indicate a {NE}-{SW} fault, which is not visible at the surface. {T}his was confirmed by a temperature survey conducted in 2010. {A} passive seismic experiment localized the ambient noise sources that correlate well with the areas of high {CO}2 flux and high soil temperatures. {F}inally, considering that the intrinsic attenuation is proportional to the frequency, a centroid analysis provides an overview of the attenuation of the seismic waves, which is closely linked to the petrophysical properties of the rock. {T}hese different approaches that merge complete active and passive seismic data with soil temperature and {CO}2 flux maps confirm the presence of the hydrothermal system plume. {S}ome properties of the top of the plume are indicated and localized.},
  keywords = {{I}nverse theory ; {T}omography ; {H}ydrothermal systems ; {S}eismic tomography ; {V}olcano seismology ; {E}urope},
  booktitle = {},
  journal = {{G}eophysical {J}ournal {I}nternational},
  volume = {189},
  numero = {3},
  pages = {1725--1733},
  ISSN = {0956-540{X}},
  year = {2012},
  DOI = {10.1111/j.1365-246{X}.2012.05451.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010055899},
}