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| Marsili Bank | |
|---|---|
| Name | Marsili Bank |
| Depth | 650m |
| Location | Tyrrhenian Sea |
| Type | submarine volcano |
| Age | Miocene–Quaternary |
| Last eruption | Holocene (uncertain) |
Marsili Bank Marsili Bank is a large submarine volcanic structure located in the Tyrrhenian Sea of the Mediterranean Sea near the southern basin off the coast of Italy. The feature lies within the maritime area associated with Calabria and the Aeolian Islands volcanic arc, and is a subject of interest for researchers from institutions such as the Istituto Nazionale di Geofisica e Vulcanologia and universities including the University of Naples Federico II. Marsili Bank has been studied in relation to tectonics along the Apennine Mountains and the evolving basin dynamics between the Adriatic Sea and the Sicilian Channel.
Marsili Bank is situated in the central Tyrrhenian basin between the Gulf of Naples and the Stromboli region, roughly aligned with the Sarnese–Vesuvius volcanic complex and the Aeolian Islands. Bathymetric surveys by research vessels such as the RV Urania and institutions like the CNR mapped its summit at depths near 450–700 metres below sea level, with flanks descending toward abyssal plains adjacent to the Calabrian Arc. The structure overlies crust affected by the Tyrrhenian back-arc basin opening and is associated with extensional faulting similar to systems documented in the Messina Strait and around the Ligurian Sea.
Marsili Bank formed during Neogene to Quaternary magmatism associated with the subduction of the African Plate beneath the Eurasian Plate and the rollback of the Ionian slab, processes compared in literature with the genesis of the Aeolian Arc and the Sabatini Volcanic District. Morphologically the edifice exhibits a broad shield-like profile with lava flow fields, collapse scars, and rift-aligned cones echoing patterns seen at Mauna Loa and Hawaii shield volcanoes as well as Mediterranean analogues such as Campi Flegrei and Vesuvius eruptive centers. Sediment cores recovered by teams from the National Oceanography Centre and the Instituto Nazionale di Oceanografia e Geofisica Sperimentale show sequences of hyaloclastites, pillow lavas, and marine sediments reminiscent of other submarine edifices like Kolumbo and Santorini.
Evidence for recent activity at Marsili Bank includes seismicity recorded by the INGV seismic network and gas emission anomalies analogous to hydrothermal plumes documented at Etorre and Logatchev vent fields. Radiometric ages from dredged basalts and tephra suggest Pleistocene to possible Holocene eruptions, paralleling eruption chronologies studied at Stromboli and Vulcano. Potential hazards considered by risk assessors include flank collapse and tsunamigenic scenarios similar to those modeled for the Canary Islands and historic events such as the Santorini eruption impacts; active monitoring by the European Marine Observation and Data Network and national agencies addresses seismic and geodetic precursors comparable to protocols used after the 2002 Stromboli crisis and the 1997 Mount Etna sequence.
Hydrothermal activity and complex topography at Marsili Bank create habitats for benthic and pelagic communities comparable to those studied at Erebus and East Pacific Rise vents, and echo biodiversity patterns from the Mediterranean Sea seamounts near Ligurian Sea and Balearic Islands. Surveys using remotely operated vehicles from the ROV Jason class and submersible expeditions by teams from the SZN (Stazione Zoologica Anton Dohrn) documented chemosynthetic microbial mats, sponges, cnidarians, and crustaceans analogous to faunal assemblages of Hydrothermal vents in the Mid-Atlantic Ridge and Juan de Fuca Ridge. Conservation concerns linked to fisheries managed under regional bodies like the General Fisheries Commission for the Mediterranean reflect patterns seen for other Mediterranean seamounts such as the Erathia Bank and Bank of Galicia.
Multidisciplinary campaigns involving the Istituto Nazionale di Geofisica e Vulcanologia, the European Space Agency remote sensing teams, and academic partners from the University of Bologna and University of Palermo have applied bathymetric mapping, seismic reflection, magnetic surveys, and sampling using vessels including the RV OGS Explora and international platforms. Collaborative projects have linked geochemistry groups from the Max Planck Institute for Marine Microbiology and paleoclimate teams referencing marine cores comparable to studies at Gulf of Lion and Adriatic Sea depositional archives. Ongoing research integrates datasets analogous to those used in monitoring Erta Ale and Kilauea to constrain magma supply, eruption rates, and hydrothermal circulation.
Human interaction with Marsili Bank involves scientific exploitation, marine resource interests registered by Italian authorities and European frameworks, and hazard preparedness coordinated with the Protezione Civile and regional administrations in Campania and Calabria. Monitoring leverages seismic stations tied to the European-Mediterranean Seismological Centre, GNSS networks comparable to continental deformation arrays used in the Alps and Apennines, and remote sensing techniques developed by the Copernicus Programme. Policy discussions reference precedence from hazard management after the 2000 Stromboli crisis and the 1980 Irpinia earthquake in coordinating early warning, environmental protection, and marine spatial planning under Mediterranean conventions such as efforts led by the Barcelona Convention.
Category:Submarine volcanoes Category:Tyrrhenian Sea