Three-dimensional magneto-seismic reconstruction of the Torre del Greco volcanic structure: implications for the Somma-Vesuvius volcanology (Abstract/Poster in convegno)

Type

• Prodotto della ricerca (Classe)
• Abstract/Poster in convegno (Classe)

Label

• Three-dimensional magneto-seismic reconstruction of the Torre del Greco volcanic structure: implications for the Somma-Vesuvius volcanology (Abstract/Poster in convegno) (literal)

Anno

• 2007-01-01T00:00:00+01:00 (literal)

Alternative label

• Gemma Aiello; Ennio Marsella; Stefano Ruggieri (2007)
  Three-dimensional magneto-seismic reconstruction of the Torre del Greco volcanic structure: implications for the Somma-Vesuvius volcanology
  in XXIV IUGG General Assembly, Perugia
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Gemma Aiello; Ennio Marsella; Stefano Ruggieri (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

• Abstract e Poster a Convegno Internazionale (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• Nessuna (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto

• Abstract/poster convegno internazionale (literal)

Note

• ISI Web of Science (WOS) (literal)
• Abstract (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• CNR-IAMC Sede di Napoli (literal)

Titolo

• Three-dimensional magneto-seismic reconstruction of the Torre del Greco volcanic structure: implications for the Somma-Vesuvius volcanology (literal)

Abstract

• An integrated interpretation of high resolution seismic and magnetic profiles recently collected offshore the Mount Vesuvius volcano by the CNR-IAMC Institute of Naples, Italy has been carried out in order to attempt a three-dimensional magneto-seismic reconstruction of a large volcanic structure, located offshore the Torre del Greco town (Naples Bay, Southern Tyrrhenian sea, Italy) and representing the seaward prolongation of the Vesuvius volcano. Seismic stratigraphy of the volcanic structures show acoustically-transparent seismic facies and high contrasts of acoustic impedance with respect to the overlying sediments. They show mounded external geometry and average dimensions in the order of kilometres. The base of the Torre del Greco structure is not acoustically evident, because they warp the volcanic seismic unit correlated to the \"Campanian Ignimbrite\" pyroclastic flow deposits. The top of the structure is irregular and eroded and show several culminations. The thickness of the overlying Holocene sediments is significantly reduced in correspondence to main culminations of the structure, while other mounds appear to be fossilised by Late Pleistocene - Holocene sediments. Total magnetic field in correspondence to the \"Torre del Greco\" structure shows three main maximum values of the anomalies, dipolar in shape. Other volcanic mounded structures, identified by seismic interpretation and fossilised by sediments don't correspond to any magnetic anomaly field, also if they show an overall geometry similar to that of the Torre del Greco structure. Three dimensional reconstruction of the Torre del Greco structure has been carried out by using seismic constraints and correlation of volcanic structure to bathymetry. A kriking type interpolation has been applied both to magnetic and bathymetric data; the bathymetric dataset has been processed by the application of a median filter in order to remove the main sea bottom corrugations by smoothing the sea bottom topographic surface. In this reconstruction the sea bottom topography offshore the Somma-Vesuvius volcanic complex is compared to the top of the Torre del Greco volcanic structure represented by contour depth of corresponding seismic horizon. Proceeding from south-east to north-west it exists a good correspondence between the sea bottom topographic surface and the top of the volcanic structure, which doesn't crop out at the sea bottom. The uprising of the volcanic structure in proximity to the sea bottom corresponds to the occurrence of topographic undulations of the sea bottom in the order of ten meters. This is confirmed by the interpretation of seismic profiles, showing three main vertical culminations of the volcanic structure, where overlying sediment drape is significantly reduced. These culminations are linked to magnetic anomaly maxima, having values ranging between 250 and 350 nT. Further knowledge on the structure need detailed volcanological interpretation and age attribution of these bodies in the eruptive activity of the Somma-Vesuvius volcanic complex. (literal)

Prodotto di

• Sviluppo di tecnologie e metodologie per l'acquisizione e l'interpretazione e la diffusione di dati di geologia marina e ambientale per la gestione sostenibile (TA.P07.016.001) (Modulo)
• Institute for coastal marine environment (IAMC) (Istituto)

Autore CNR

• ENNIO MARSELLA (Persona)
• GEMMA AIELLO (Persona)

Insieme di parole chiave

• Keywords of "Three-dimensional magneto-seismic reconstruction of the Torre del Greco volcanic structure: implications for the Somma-Vesuvius volcanology" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute for coastal marine environment (IAMC) (Istituto)
• Sviluppo di tecnologie e metodologie per l'acquisizione e l'interpretazione e la diffusione di dati di geologia marina e ambientale per la gestione sostenibile (TA.P07.016.001) (Modulo)

Autore CNR di

• GEMMA AIELLO (Persona)
• ENNIO MARSELLA (Persona)

Insieme di parole chiave di

• Keywords of "Three-dimensional magneto-seismic reconstruction of the Torre del Greco volcanic structure: implications for the Somma-Vesuvius volcanology" (Insieme di parole chiave)