Low VS crustal zones in the Campanian Plain (Southern Italy)

Nunziata, C.; Costanzo, Maria Rosaria

doi:10.1007/s00710-010-0129-3

Cited by 8 publications

(4 citation statements)

References 29 publications

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“…Along the cross section AP-VES, we show the V S models obtained in this paper at the Apennine (group A) and Roccamonfina (group B) together with those obtained at the Campanian Plain (Nunziata and Costanzo 2010), and Vesuvius (Fig. 9a).…”

Section: Comparison With Campanian Volcanoesmentioning

confidence: 94%

“…A low V S velocity zone has been found in the crust of the Campania region, at about 15 km depth in the Campanian Plain (Nunziata and Costanzo 2010), at about 10 km depth below Campi Flegrei (Guidarelli et al 2006) and the neapolitan area (Nunziata 2010) and at 4 km below Somma-Vesuvius caldera area (De Nisco et al 2009). A low-velocity zone was revealed under Vesuvius at 5.8-8.5 km depth by local earthquakes and teleseismic receiver functions (Piana .…”

Section: Introductionmentioning

confidence: 97%

“…9The chosen V S models and their interpretation are shown along the AE (a) and GE (b) cross sections (located in the top) extending from the Apennines to Vesuvius and from Campi Flegrei to Vesuvius, respectively. The V S models are representative: below C and D of the Campanian Plain(Nunziata and Costanzo 2010); below G of Campi Flegrei (modified fromGuidarelli et al 2006 as explained in the text); below F of the Neapolitan area in the middle of Campi Flegrei and Vesuvius(Nunziata 2010); below Vesuvius of the tomographic study relative to its caldera (the dashed ellipse shows the investigated area)(De Nisco et al 2009). The dashed circle around Roccamonfina separates the examined events (dots) in inside and outside the volcano.…”

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confidence: 99%

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VS crustal models of the Roccamonfina volcano and relationships with Neapolitan volcanoes (southern Italy)

Nunziata

Gerecitano²

2011

Int J Earth Sci (Geol Rundsch)

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Shear wave velocities of the crust and upper mantle are defined beneath the Roccamonfina volcano and surrounding Apennines (southern Italy) from the simultaneous nonlinear inversion of the local group velocity dispersion data, obtained from seismic events recorded in 1988-2004 at Roccamonfina station of the INGV-RSNC network, and regional dispersion data obtained in previous studies. The main features of the representative V S models are a carbonatic basement and a low velocity zone at 6-10 km of depth. The sedimentary succession is *5 km thick below the Roccamonfina volcano and lays above a high V S (3.8 km/s) ascribable to solidified magma body, while it is *10 km thick below the surrounding Apennines. A low velocity layer with an average thickness of 10 km is detected below the Roccamonfina volcano which can be associated with the presence of partial melting and interpreted as magmatic reservoir. Such low velocity layer, also found below the surrounding Apennines but with a reduced thickness of 2-3 km, extends to the Campanian Plain and to the Neapolitan volcanic area, from Campi Flegrei to Somma-Vesuvius.

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Section: Comparison With Campanian Volcanoesmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 97%

mentioning

confidence: 99%

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VS crustal models of the Roccamonfina volcano and relationships with Neapolitan volcanoes (southern Italy)

Nunziata

Gerecitano²

2011

Int J Earth Sci (Geol Rundsch)

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“…The investigated area is characterized by a cover of volcanic and alluvial soils on a Mesozoic carbonatic basement deepening from north-east to south-west. Geological and geophysical studies suggest that a 2-3 km depth of the carbonatic basement can be realistically assumed (NUNZIATA andCOSTANZO, 2009 andreferences Vol. 168, (2011) V S Profiles from Noise Cross Correlation at Local and Small Scale 511 therein).…”

Section: Noise Cross Correlation At Local Scalementioning

confidence: 99%

V S Profiles from Noise Cross Correlation at Local and Small Scale

Nisco

Nunziata

2010

Pure Appl. Geophys.

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Ambient noise measurements have been performed at local and small scales in the Neapolitan and surrounding areas (Campania, southern Italy) by employing two broad-band Kinemetrics Q330 stations, equipped with Episensor ES-T three component accelerometers. In both experiments frequency time analysis (FTAN method) has been performed on the vertical and radial components of noise cross correlations to retrieve the Rayleigh wave dispersion (Green's function). At local scale, over an interstation distance of about 26 km, the group velocity dispersion values have been compared with those obtained from FTAN analysis on recordings of two earthquakes with similar path. At small scale, measurements have been carried out over an interstation distance of about 440 m in the public gardens of Scampia, the northernmost quarter of Naples. The Rayleigh wave group velocity dispersion data obtained from noise cross correlation, have been combined with those from active seismic experiment along the same alignment, but shorter (120 m offset). The non linear inversion of such a dispersion curve has allowed the definition of V S models to depths of 100 m, in agreement with nearby stratigraphy. Moreover, a good agreement has resulted for the resonance frequency among the H/V ratio, the ellipticity of the fundamental mode computed for the chosen V S model, and the average twodimensional (2D) spectral amplification computed along a cross section representative of the Scampia quarter.

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The Campania Province

Peccerillo¹

2016

Cenozoic Volcanism in the Tyrrhenian Sea Region

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Low VS crustal zones in the Campanian Plain (Southern Italy)

Cited by 8 publications

References 29 publications

VS crustal models of the Roccamonfina volcano and relationships with Neapolitan volcanoes (southern Italy)

VS crustal models of the Roccamonfina volcano and relationships with Neapolitan volcanoes (southern Italy)

V S Profiles from Noise Cross Correlation at Local and Small Scale

The Campania Province

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