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Authors: Martinez-Arévalo, C.*
Musumeci, C.*
Patanè, D.*
Title: Evidence of a partial melt zone beneath Stromboli volcano (Italy) from inversion of teleseismic receiver functions
Title of journal: Terra Nova
Series/Report no.: /21 (2009)
Issue Date: 1-Jul-2009
DOI: 10.1111/j.1365-3121.2009.00894.x
Keywords: receiver function
Abstract: Teleseismic body waves from broadband seismic stations are used to investigate the crustal and uppermost mantle structure of Stromboli volcano through inversion of the receiver functions (RFs). First, we computed RFs in the frequency domain using a multiple-taper spectral correlation technique. Then, the nonlinear neighbourhood algorithm was applied to estimate the seismic shear wave velocity of the crust and uppermost mantle and to define the main seismic velocity discontinuities. The stability of the inversion solution was tested using a range of initial random seeds and model parameterizations. A shallow Moho, present at depth of 14.8 km, is evidence of a thinned crust beneath Stromboli volcano. However, the most intriguing and innovative result is a low S velocity layer in the uppermost mantle, below 32 km. The low S velocity layer suggests a possible partial melt region associated with the volcanism, as also recently supported by tomographic studies and petrological estimations.
Appears in Collections:04.06.08. Volcano seismology
Papers Published / Papers in press

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