Volcanological and petrological evolution of Marsili Seamount (southern Tyrrhenian Sea)

Trua, Teresa; Serri, G.; Marani, M.; Renzulli, Alberto; Gamberi, Fabiano

doi:10.1016/s0377-0273(01)00300-6

Cited by 58 publications

(54 citation statements)

References 28 publications

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“…Basaltic to rhyolitic lavas, dredged from the eastern and western seamounts, mostly belong to calc-alkaline and shoshonitic series, with compositional characteristics similar to the subaerial rocks of the Aeolian Islands. Mainly calc-alkaline rocks have been dredged at the Marsili volcano, sited in the central part of the Marsili backarc basin on a basaltic oceanic crust of 1.9-1.7 Ma (Trua et al, 2002, and references therein). Island-arc tholeiitic basalts have been only dredged from north Lametini and lowermost Aeolian slope.…”

Section: Introductionmentioning

confidence: 99%

A west-east geochemical and isotopic traverse along the volcanism of the Aeolian Island arc, southern Tyrrhenian Sea, Italy: Inferences on mantle source processes

Francalanci¹,

Avanzinelli²,

Tommasini³

et al. 2007

Cenozoic Volcanism in the Mediterranean Area

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Section: Introductionmentioning

confidence: 99%

A west-east geochemical and isotopic traverse along the volcanism of the Aeolian Island arc, southern Tyrrhenian Sea, Italy: Inferences on mantle source processes

Francalanci¹,

Avanzinelli²,

Tommasini³

et al. 2007

Cenozoic Volcanism in the Mediterranean Area

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“…Marsili seamount is a recent volcanic structure (1-0.1 Ma), mainly composed of basalts and, to a lesser extent, andesites and trachy-andesites with calc-alkaline affinity [32][33][34]. This structure has been interpreted as an inflated, small-scale spreading centre, since bio-and magneto-stratigraphic data show features comparable to those typical of mid-ocean ridges [35][36][37][38].…”

Section: Geothermal Potential Of Southern Tyrrhenian Basin and Marsilmentioning

confidence: 99%

The Marsili Volcanic Seamount (Southern Tyrrhenian Sea): A Potential Offshore Geothermal Resource

et al. 2014

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Italy has a strong geothermal potential for power generation, although, at present, the only two geothermal fields being exploited are Larderello-Travale/Radicondoli and Mt. Amiata in the Tyrrhenian pre-Apennine volcanic district of Southern Tuscany. A new target for geothermal exploration and exploitation in Italy is represented by the Southern Tyrrhenian submarine volcanic district, a geologically young basin (Upper Pliocene-Pleistocene) characterised by tectonic extension where many seamounts have developed. Heat-flow data from that area show significant anomalies comparable to those of onshore geothermal fields. Fractured basaltic rocks facilitate seawater infiltration and circulation of hot water chemically altered by rock/water interactions, as shown by the widespread presence of hydrothermal deposits. The persistence of active hydrothermal activity is consistently shown by many different sources of evidence, including: heat-flow data, gravity and magnetic anomalies, widespread presence of hydrothermal-derived gases (CO 2 , CO, CH 4 ), 3 He/ 4 He isotopic ratios, as well as broadband OBS/H seismological information, which demonstrates persistence of volcano-tectonic events and High Frequency Tremor (HFT). The Marsili and Tyrrhenian seamounts are thus an important-and likely long-lasting-renewable energy resource. This raises the possibility of future development of the world's first offshore geothermal power plant. OPEN ACCESSEnergies 2014, 7 4069

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“…The causes of the formation of the nearly 1500 km 3 structure have been deduced by its morphology and have been identified with the intense magma pulses originated from the subducted Ionian slab melting occurred about 0.7 My ago [9]. The basalt lava rocks composing the edifice belong mainly to the calc-alkaline and to the tholeitic magma series which, due to the quick cooling process after eruption, are characterised by a high degree of fracturing and vesicularity [10]. The submarine volcanic structure gets the maximum of heat anomaly flow of the whole Tyrrhenian Sea with values close to 250 mW/m 2 [3], but recent measurements report values up to 500 mW/m 2 within the crest's summit [11].…”

Section: -South Tyrrhenian Basin and Marsili Seamount Geophysicsmentioning

confidence: 99%

Perspectives of offshore geothermal energy in Italy

Armani

Paltrinieri²

2013

EPJ Web of Conferences

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Summary. -Italy is the first European and world's fifth largest producer of geothermal energy for power generation which actually accounts for less than 2% of the total electricity production of the country. In this paper after a brief introduction to the basic elements of high-enthalpy geothermal systems, we discuss the potentialities represented by the submarine volcanoes of the South Tyrrhenian Sea. In particular we focus on Marsili Seamount which, according to the literature data, can be considered as a possible first offshore geothermal field; then we give a summary of the related exploitation pilot project that may lead to the realization of a 200 MWe prototype power plant. Finally we discuss some economic aspects and the development perspectives of the offshore geothermal resource taking into account the Italian energy framework and Europe 2020 renewable energy target.

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Volcanological and petrological evolution of Marsili Seamount (southern Tyrrhenian Sea)

Cited by 58 publications

References 28 publications

A west-east geochemical and isotopic traverse along the volcanism of the Aeolian Island arc, southern Tyrrhenian Sea, Italy: Inferences on mantle source processes

A west-east geochemical and isotopic traverse along the volcanism of the Aeolian Island arc, southern Tyrrhenian Sea, Italy: Inferences on mantle source processes

The Marsili Volcanic Seamount (Southern Tyrrhenian Sea): A Potential Offshore Geothermal Resource

Perspectives of offshore geothermal energy in Italy

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