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

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

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3703305c&link_type=abstract

Geophysical Research Letters, Volume 37, Issue 3, CiteID L03305

Physics

Geophysics

Geomagnetism And Paleomagnetism: Magnetic Anomalies: Modeling And Interpretation, Exploration Geophysics: Gravity Methods (1219), Exploration Geophysics: Magnetic And Electrical Methods (5109), Marine Geology And Geophysics: Marine Magnetics And Paleomagnetics (1550), Marine Geology And Geophysics: Submarine Tectonics And Volcanism

Scientific paper

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 km3 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.

Affiliated with

Also associated with

No associations

Rating

Potential-field modeling of collapse-prone submarine volcanoes in the southern Tyrrhenian Sea (Italy) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Potential-field modeling of collapse-prone submarine volcanoes in the southern Tyrrhenian Sea (Italy), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Potential-field modeling of collapse-prone submarine volcanoes in the southern Tyrrhenian Sea (Italy) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1091529