Open AccessRayleigh wave phase velocities and upper mantle structure in the Apennines
Author(s) -
Michèle Caputo,
L. Knopoff,
Enzo Mantovani,
St. Mueller,
G. F. Panza
Publication year - 2010
Publication title -
annals of geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 60
eISSN - 2037-416X
pISSN - 1593-5213
DOI - 10.4401/ag-4804
Subject(s) - geology , seismology , rayleigh wave , mantle (geology) , inversion (geology) , geophysics , geodesy , surface wave , tectonics , physics , optics
The dispersion of the phase velocities of the surface Rayleigh
waves on the path between the station pair Torino-L'Aquila in the
Apennines has been observed with long period seismic stations for twin
earthquakes.
The inversion was provided by the "Hedgehog" program of non-linear
inversion analysis.
The interpretation supports the notion that in the Apennines low-velocity
material in the mantle is found within a few km of the Moho and may
lie immediately below the Moho; however the alternative model of a highvelocity
lid and very low-velocity channel cannot be completely rejected
waves on the path between the station pair Torino-L'Aquila in the
Apennines has been observed with long period seismic stations for twin
earthquakes.
The inversion was provided by the "Hedgehog" program of non-linear
inversion analysis.
The interpretation supports the notion that in the Apennines low-velocity
material in the mantle is found within a few km of the Moho and may
lie immediately below the Moho; however the alternative model of a highvelocity
lid and very low-velocity channel cannot be completely rejected