Chapter 6 Shear-wave velocity models and seismic sources in campanian volcanic areas: Vesuvius and phlegraean fields

Guidarelli, M.; Zille, A.; Saraò, Angela; Natale, M.; Nunziata, C.; Panza, G. F.

doi:10.1016/s1871-644x(06)80010-0

Cited by 7 publications

(13 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9b). The V S model shown beneath Campi Flegrei is our inversion of the surface tomography at Gulf of Pozzuoli (Guidarelli et al 2006) with the new regional data of the cell A4 (Panza et al 2007a), and agrees with the previous one. A carbonate basement is detected below a covering of volcanic and alluvial products at depths ranging from *1-2 to *5 km in the central part of the Campanian Plain, accordingly to the extensional tectonics of the area (Fig.…”

Section: Comparison With Campanian Volcanoessupporting

confidence: 89%

“…Such Vp/Vs ratio is very reasonable for the Campanian area as it has been found to vary between 1.8 (e.g. Zollo et al 2002;Auger et al 2003;Nunziata et al 2006;Nunziata 2010; Nunziata and Costanzo 2010), 1.85 (Guidarelli et al 2006) and 1.9 (Lomax et al 2001). Densities have been attributed according to the model inverted from regional dispersion data (Panza et al 2007a) and, in the top 1 km, from gravity modeling (Capuano et al 1992).…”

Section: Discussionmentioning

confidence: 85%

“…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: 99%

“…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.…”

mentioning

confidence: 99%

See 3 more Smart Citations

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

Nunziata

Gerecitano²

2011

Int J Earth Sci (Geol Rundsch)

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Comparison With Campanian Volcanoessupporting

confidence: 89%

Section: Discussionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

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

Nunziata

Gerecitano²

2011

Int J Earth Sci (Geol Rundsch)

Self Cite

View full text Add to dashboard Cite

show abstract

“…The measurement of group velocity of Rayleigh and/or Love waves is performed on the envelope of the surface-wave train and can be robustly measured across a broad period band, from fractions of seconds to hundreds of seconds (e.g. Chimera et al 2003;Guidarelli et al 2006). Seismic records from national and international seismic networks are analysed by FTAN to study the velocity structure in the broad Mediterranean region.…”

Section: Methods and Datamentioning

confidence: 99%

The shear-wave velocity structure of the lithosphere–asthenosphere system in the Iberian area and surroundings

Raykova

Panza

2010

Rend. Fis. Acc. Lincei

View full text Add to dashboard Cite

The S-wave velocity model, to the depth of 300 km for the Iberian area and surroundings, is obtained with the non-linear inversion of Rayleigh wave tomographic data in the period range from 5 to 150 s. The three-dimensional model of the region is assembled from 74 juxtaposed one-dimensional cellular structures, sized 1°9 1°, by means of a local smoothing optimisation. The S-wave velocity model shows the almost constant velocity (*4.40 km/s) in the upper mantle beneath the Iberian Massif, the welldeveloped low-velocity zones in the Valencia Trough and under northwest Africa, and specific features of the upper mantle layering in the zone of the Iberian range. The thickness of the crust varies between 25 and 35 km with exceptions in the zones of the Valencia Trough (11-18 km) and Pyrenees (35-45 km). Our Vs models are well correlated with the geological structure along Transmed I and evidence several features of the lithosphere-asthenosphere system in the Betic-Rif domain: quite distinct Iberian, Alboran and Meseta crustal domains; relatively thin, well-developed lithosphere under the Rif system; and clearly defined boundary between the upper and lower asthenosphere. The cellular velocity model of the Betics, where ultrapotassic lamproitic magmatism is observed, has features similar to those of other three areas in the western Mediterranean where ultrapotassic lamproitic magmatism of different age is observed. The crust and upper mantle models in these four areas can be correlated with the age of the magmatism and the local heat flow, and outline how, starting from a naturally quite undifferentiated mantle where magma genesis is currently in progress, the differentiation in lithosphere and asthenosphere can take place in time.

show abstract

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

Nunziata

Costanzo

2010

Miner Petrol

View full text Add to dashboard Cite

Chapter 6 Shear-wave velocity models and seismic sources in campanian volcanic areas: Vesuvius and phlegraean fields

Cited by 7 publications

References 42 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)

The shear-wave velocity structure of the lithosphere–asthenosphere system in the Iberian area and surroundings

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

Contact Info

Product

Resources

About