Magnetic signature of submarine volcanoes in the Phlegrean Fields-Ischia Ridge (North-Western side of the Bay of Naples, Southern Italy)
This paper presents a study of the Phlegrean Fields-Ischia submarine ridge by the analysis and interpretation of high-resolution aeromagnetic data recently acquired in the Western Procida offshore. The investigated area is located along the ridge connecting Ischia to the Phlegrean...
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
2008-06-01
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Online Access: | http://www.annalsofgeophysics.eu/index.php/annals/article/view/3021 |
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doaj-5eb9dadf41344d3b9d9f63184ca7c07c2020-11-25T02:41:37ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X2008-06-0151410.4401/ag-3021Magnetic signature of submarine volcanoes in the Phlegrean Fields-Ischia Ridge (North-Western side of the Bay of Naples, Southern Italy)M. SecomandiA. RapollaV. PaolettiThis paper presents a study of the Phlegrean Fields-Ischia submarine ridge by the analysis and interpretation of high-resolution aeromagnetic data recently acquired in the Western Procida offshore. The investigated area is located along the ridge connecting Ischia to the Phlegrean Fields and is characterized by the existence of several monogenetic volcanoes aligned on a NE-SW system of faults. The high-resolution magnetic data yielded new information on the area, highlighting particularly the signature of a volcanic body located between Pt. Serra and the Ruommoli shoal. This structure has not been clearly described before and we named it as the Pt. Serra submarine volcano. The computation of the analytic signal and horizontal gradient of the data distinctly located this structure and definined the position of its rims. A 2D modeling and 3D inversion of data provided information on the volcanos thickness, width and magnetization, disclosing a meaningful igneous body extending down to several hundred meters b.s.l.http://www.annalsofgeophysics.eu/index.php/annals/article/view/3021Aeromagnetic surveySubmarine volcanoesPhlegrean Fields-Ischia RidgeProcida offshore |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. Secomandi A. Rapolla V. Paoletti |
spellingShingle |
M. Secomandi A. Rapolla V. Paoletti Magnetic signature of submarine volcanoes in the Phlegrean Fields-Ischia Ridge (North-Western side of the Bay of Naples, Southern Italy) Annals of Geophysics Aeromagnetic survey Submarine volcanoes Phlegrean Fields-Ischia Ridge Procida offshore |
author_facet |
M. Secomandi A. Rapolla V. Paoletti |
author_sort |
M. Secomandi |
title |
Magnetic signature of submarine volcanoes in the Phlegrean Fields-Ischia Ridge (North-Western side of the Bay of Naples, Southern Italy) |
title_short |
Magnetic signature of submarine volcanoes in the Phlegrean Fields-Ischia Ridge (North-Western side of the Bay of Naples, Southern Italy) |
title_full |
Magnetic signature of submarine volcanoes in the Phlegrean Fields-Ischia Ridge (North-Western side of the Bay of Naples, Southern Italy) |
title_fullStr |
Magnetic signature of submarine volcanoes in the Phlegrean Fields-Ischia Ridge (North-Western side of the Bay of Naples, Southern Italy) |
title_full_unstemmed |
Magnetic signature of submarine volcanoes in the Phlegrean Fields-Ischia Ridge (North-Western side of the Bay of Naples, Southern Italy) |
title_sort |
magnetic signature of submarine volcanoes in the phlegrean fields-ischia ridge (north-western side of the bay of naples, southern italy) |
publisher |
Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
series |
Annals of Geophysics |
issn |
1593-5213 2037-416X |
publishDate |
2008-06-01 |
description |
This paper presents a study of the Phlegrean Fields-Ischia submarine ridge by the analysis and interpretation of high-resolution aeromagnetic data recently acquired in the Western Procida offshore. The investigated area is located along the ridge connecting Ischia to the Phlegrean Fields and is characterized by the existence of several monogenetic volcanoes aligned on a NE-SW system of faults. The high-resolution magnetic data yielded new information on the area, highlighting particularly the signature of a volcanic body located between Pt. Serra and the Ruommoli shoal. This structure has not been clearly described before and we named it as the Pt. Serra submarine volcano. The computation of the analytic signal and horizontal gradient of the data distinctly located this structure and definined the position of its rims. A 2D modeling and 3D inversion of data provided information on the volcanos thickness, width and magnetization, disclosing a meaningful igneous body extending down to several hundred meters b.s.l. |
topic |
Aeromagnetic survey Submarine volcanoes Phlegrean Fields-Ischia Ridge Procida offshore |
url |
http://www.annalsofgeophysics.eu/index.php/annals/article/view/3021 |
work_keys_str_mv |
AT msecomandi magneticsignatureofsubmarinevolcanoesinthephlegreanfieldsischiaridgenorthwesternsideofthebayofnaplessouthernitaly AT arapolla magneticsignatureofsubmarinevolcanoesinthephlegreanfieldsischiaridgenorthwesternsideofthebayofnaplessouthernitaly AT vpaoletti magneticsignatureofsubmarinevolcanoesinthephlegreanfieldsischiaridgenorthwesternsideofthebayofnaplessouthernitaly |
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