TY  - JOUR
A1  - Matos, Catarina
A1  - Silveira, Graca
A1  - Matias, Luis
A1  - Caldeira, Rita
A1  - Ribeiro, M. Luisa
A1  - Dias, Nuno A.
A1  - Krüger, Frank
A1  - Bento dos Santos, Telmo
T1  - Upper crustal structure of Madeira Island revealed from ambient noise tomography
JF  - Journal of volcanology and geothermal research
N2  - We present the first image of the Madeira upper crustal structure, using ambient seismic noise tomography. 16 months of ambient noise, recorded in a dense network of 26 seismometers deployed across Madeira, allowed reconstructing Rayleigh wave Green's functions between receivers. Dispersion analysis was performed in the short period band from 1.0 to 4.0 s. Group velocity measurements were regionalized to obtain 20 tomographic images, with a lateral resolution of 2.0 km in central Madeira. Afterwards, the dispersion curves, extracted from each cell of the 2D group velocity maps, were inverted as a function of depth to obtain a 3D shear wave velocity model of the upper crust, from the surface to a depth of 2.0 km. The obtained 3D velocity model reveals features throughout the island that correlates well with surface geology and island evolution. (C) 2015 Elsevier B.V. All rights reserved.
KW  - Madeira island
KW  - Volcanic rift zone
KW  - Crustal structure
KW  - Ambient noise tomography
Y1  - 2015
U6  - https://doi.org/10.1016/j.jvolgeores.2015.03.017
SN  - 0377-0273
SN  - 1872-6097
VL  - 298
SP  - 136
EP  - 145
PB  - Elsevier
CY  - Amsterdam
ER  -