Potential-field modeling of collapse-prone submarine volcanoes in the southern Tyrrhenian Sea (Italy) (Articolo in rivista)

Type
Label
  • Potential-field modeling of collapse-prone submarine volcanoes in the southern Tyrrhenian Sea (Italy) (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • Tontini FC (1), Cocchi L (2), Muccini F (2), Carmisciano C (2), Marani M (3), Bonatti E (3,4), Ligi M (3), Boschi E (2) (2010)
    Potential-field modeling of collapse-prone submarine volcanoes in the southern Tyrrhenian Sea (Italy)
    in Geophysical research letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Tontini FC (1), Cocchi L (2), Muccini F (2), Carmisciano C (2), Marani M (3), Bonatti E (3,4), Ligi M (3), Boschi E (2) (literal)
Pagina inizio
  • L03305 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • DOI: 10.1029/2009GL041757 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 37 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. GNS Sci, Lower Hutt 5040, New Zealand 2. Ist Nazl Geofis & Vulcanol, Sez Roma 2, I-00143 Rome, Italy 3. CNR, Ist Sci Marine, I-40129 Bologna, Italy 4. Columbia Univ, Lamont Doherty Geol Observ, Earth Inst, Palisades, NY 10964 USA (literal)
Titolo
  • Potential-field modeling of collapse-prone submarine volcanoes in the southern Tyrrhenian Sea (Italy) (literal)
Abstract
  • Hydrothermal alteration may weaken volcanic rocks, causing the gravitational instability of portions of active volcanoes with potentially hazardous collapses. Here we show high-resolution multibeam, magnetic and gravity surveys of the Marsili seamount, the largest active volcano of Europe located in the southern Tyrrhenian back-arc basin. These surveys reveal zones with exceptionally low densities and with vanishing magnetizations, due probably to the comminution of basalts during hyaloclastic submarine eruptions and to their post-eruptive hydrothermal alteration. The location of these regions correlates with morphological data showing the occurrence of past collapses. Similar evidence has been obtained from pre-existing data at Vavilov Seamount, another older volcanic system in the Tyrrhenian back-arc basin. Here a large volume of at least 50 km(3) may have collapsed in a single event from its 40 km long western flank. Given the similarities between these volcanoes, a large collapse event may also be expected at Marsili. (literal)
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