The Marsili Ridge (Southern Tyrrhenian Sea, Italy): An island-arc volcanic complex emplaced on a ‘relict’ back-arc basin

Ventura, Guido; Milano, Girolamo; Passaro, Salvatore; Sprovieri, Mario

doi:10.1016/j.earscirev.2012.11.005

Cited by 25 publications

(29 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1a, b;Selli et al, 1977;Marani and Trua, 2002;Cocchi et al, 2009;Ventura et al, 2013;Iezzi et al, 2014). MS, which covers an area Global and Planetary Change 133 (2015) 2-16 of about 2100 km 2 and rises from about 3200 m to 508 m b.s.l.…”

Section: Introductionmentioning

confidence: 91%

“…1b;De Astis et al, 2003). The geodynamic significance of MS is still debated: Marani and Trua (2002) propose that MS represents the super-inflated ridge of the Marsili oceanic basin, whereas Ventura et al (2013) suggest that (a) MS is a volcanic arc edifice formed within the now inactive, relict Marsili back-arc, and (b) its growth is due to passive magma ascent along pre-existing fractures inherited by the early spreading activity. In fact, the spreading rate in the Southern Tyrrhenian Sea back-arc abruptly decreased from 2.8-3.1 mm/a to less than 1.8 mm/a in the last 0.78-1 Ma (Cocchi et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…b) Structural sketch of the Southern Tyrrhenian Sea and location of the volcanic seamounts (red triangles) and of the Aeolian Arc volcanoes (modified from De Astis et al, 2003). c) Bathymetry of the Marsili Seamount (modified from Ventura et al, 2013) with location of the Marsili1 gravity core. d) Digital bathymetry model of the central sector of the Marsili seamount with location of the NNE-SSW aligned pyroclastic cones and Marsili1 gravity core (bathymetry data from Ventura et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The proximal marine record of the Marsili Seamount in the last 7 ka (Southern Tyrrhenian Sea, Italy): Implications for the active processes in the Tyrrhenian Sea back-arc

Tamburrino

Vallefuoco

Ventura

et al. 2015

Global and Planetary Change

Self Cite

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The proximal marine record of the Marsili Seamount in the last 7 ka (Southern Tyrrhenian Sea, Italy): Implications for the active processes in the Tyrrhenian Sea back-arc

Tamburrino

Vallefuoco

Ventura

et al. 2015

Global and Planetary Change

Self Cite

View full text Add to dashboard Cite

“…Among these arcs, the Okinawa Trough (~1,000 km) (Hirata et al 1991), the Mariana Trough (~1,300 km) (Hawkins and Melchior 1985), the Manus Basin (~120 km) (Reeves et al 2011), the North Fiji Basin (~800 km) (Tanahashi et al 1994), the Lau Basin (~2,000 km) (Parson and Wright 1996), the East Scotia Basin (~500 km) (Rogers et al 2012), the Bransfield Basin (~300 km) (Janik 1997), the Andaman Basin (~80 km) (Rao et al 1996), and the Marsili Basin (~70 km) (Ventura et al 2013) are known to be currently active (Fig. 2.1).…”

Section: Fluxes Of Deep-sea Hydrothermal Fluidsmentioning

confidence: 99%

Geochemical Constraints on Potential Biomass Sustained by Subseafloor Water–Rock Interactions

Nakamura

Takai

2014

Subseafloor Biosphere Linked to Hydrothermal Systems

View full text Add to dashboard Cite

Since the first discovery of macrofaunal and microbial communities endemic to hydrothermal vents, chemolithoautotrophic microorganisms at and beneath the seafloor have attracted the interest of many researchers. This type of microorganism is known to obtain energy from inorganic substances (e.g., reduced sulfur compounds, molecular hydrogen, and methane) derived from subsurface physical and chemical processes, such as water-rock interactions. As the primary producers, they sustain chemosynthetic ecosystems, which are fundamentally different from terrestrial and shallow marine ecosystems that are sustained by photosynthetic primary production. It is possible that the chemosynthetic ecosystems at and beneath the seafloor are vast and metabolically active, playing an important role in the global geochemical cycles of many bio-essential elements. However, even today, the spatial and temporal distributions of the unseen chemosynthetic biosphere are largely uncertain. Here, we present geochemical constraints on the estimate of the potential biomass in seafloor and subseafloor chemosynthetic ecosystems sustained by high-temperature deep-sea hydrothermal activities and low-temperature alteration/weathering of oceanic crust. The calculations are based on the fluxes of metabolic energy sources (S, H 2 , Fe, and CH 4 ), the chemical energy yields for metabolic reactions, and the maintenance energy requirements. The results show that for deep-sea hydrothermal vent ecosystems, most bioavailable energy yields (86 %) are due to oxidation reactions of S. In contrast, for subseafloor oceanic crust ecosystems, oxidation reactions of Fe and S generally yield the same amounts of bioavailable energy (59 % and 41 %, respectively). The estimated biomass potential in the subseafloor oceanic crust ecosystems (0.14 Pg C) is one order of magnitude higher than that in global deep-sea hydrothermal vent ecosystems (0.0074 Pg C), most likely reflecting the greater flux of

show abstract

“…In particular, a new generation of high-resolution bathymetric maps has resulted in a renewed interest in the better understanding of the morphological expression and dynamics of southeastern Tyrrhenian submarine volcanism over the last few years (e.g. Casalbore, Bosman, Romagnoli, Di Filippo, & Chiocci, 2014;Casalbore, Romagnoli, Chiocci, & Frezza, 2010;Chiocci & De Alteriis, 2006;De Alteriis & Violante, 2009;Passaro et al, 2010;Passaro, Milano, Sprovieri, Ruggieri, & Marsella, 2011a;Romagnoli, Casalbore, Bosman, Braga, & Chiocci, 2013;Sacchi et al, 2014;Ventura, Milano, Passaro, & Sprovieri, 2013). The Campi Flegrei district is an active volcanic area that covers about 200 km 2 of the coastal zone of SW Italy, a large part of which develops off the Gulf of Naples, and is characterized by at least one large caldera collapse structure.…”

Section: Introductionmentioning

confidence: 99%

High-resolution morpho-bathymetry of Pozzuoli Bay, southern Italy

et al. 2015

View full text Add to dashboard Cite

We present the results of a detailed bathymetric survey of Pozzuoli Bay (Gulf of Naples, Italy). This shallow marine area, along with the Campi Flegrei inland, is a highly active volcanic district in the coastal zone of SW Italy. The area has been active since at least 78 ka B.P., and is structurally dominated by a caldera collapse ( 8 km in diameter) associated with the eruption of the Neapolitan Yellow Tuff (NYT), a 30 -50 km 3 dense rock equivalent (DRE) ignimbrite dated 15 ka B.P. The main cartographic product consists of a 1:10,000 scale morpho-bathymetric map of Pozzuoli Bay, derived from 1 m cell-size, colour hill-shaded, digital terrain model of the seafloor. Multibeam bathymetry data reveal the precise extent of Roman underwater archaeological remains located in the N -NW infralittoral zone of the Bay. Morphometric analysis allowed for the development of thematic representations, including slope and aspect maps. A complete data set of active fluid vents seafloor locations were also recorded during the survey and reported in the final map. The multibeam bathymetric survey illustrated in this study provides an unprecedentedly detailed image of the seafloor morphology of Pozzuoli Bay and represents a contribution to the understanding of the dynamic evolution of the Campi Flegrei caldera, a high-risk volcanic area densely populated by almost one million people.

show abstract

The Marsili Ridge (Southern Tyrrhenian Sea, Italy): An island-arc volcanic complex emplaced on a ‘relict’ back-arc basin

Cited by 25 publications

References 46 publications

The proximal marine record of the Marsili Seamount in the last 7 ka (Southern Tyrrhenian Sea, Italy): Implications for the active processes in the Tyrrhenian Sea back-arc

The proximal marine record of the Marsili Seamount in the last 7 ka (Southern Tyrrhenian Sea, Italy): Implications for the active processes in the Tyrrhenian Sea back-arc

Geochemical Constraints on Potential Biomass Sustained by Subseafloor Water–Rock Interactions

High-resolution morpho-bathymetry of Pozzuoli Bay, southern Italy

Contact Info

Product

Resources

About