Open AccessRayleigh wave velocities and structural informations in Central Northern Italy
Author(s) -
P. Baldi,
M. Gasperini,
Enzo Mantovani
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-4748
Subject(s) - geology , seismology , rayleigh wave , dispersion (optics) , geodesy , surface wave , physics , optics
Rayleigh wave dispersion has been observed along the three profiles
Trieste-Olbia, Olbia-Bologna and Olbia-Bolzano, in central-northern Italy.
The interpretation of phase velocities indicates a crustal thickness increasing
from East (25-30 km, Trieste-Olbia) to West (30-35 km, Olbia-Bolzano).
For each profile two values of the Moho depth are acceptable; the shallower
one is associated with a set of models which have low velocity
material (¡3=4.3 lcm/s) just under or within a few km from the Moho;
the deeper one still accepts low velocity material ((3=4.4 km/s) under
the Moho but does not exclude the presence of an almost normal LID
above the low velocity channel
Trieste-Olbia, Olbia-Bologna and Olbia-Bolzano, in central-northern Italy.
The interpretation of phase velocities indicates a crustal thickness increasing
from East (25-30 km, Trieste-Olbia) to West (30-35 km, Olbia-Bolzano).
For each profile two values of the Moho depth are acceptable; the shallower
one is associated with a set of models which have low velocity
material (¡3=4.3 lcm/s) just under or within a few km from the Moho;
the deeper one still accepts low velocity material ((3=4.4 km/s) under
the Moho but does not exclude the presence of an almost normal LID
above the low velocity channel