A series of volcanic edifices discovered a few kilometers off the coast of SW Sicily

Lodolo, Emanuele; Civile, Dario; Zecchin, Massimo; Zampa, Luigi; Accaino, F.

doi:10.1016/j.margeo.2019.105999

Cited by 14 publications

(17 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the interpretation of marine geophysical data combined with the well-log stratigraphy of the ViDEPI project (https ://www.videp i.com/videp i/videp i.asp), numerous papers have described tectonic structures accommodating multiphase crustal deformations in the Sicily Channel 23,[38][39][40][41][42][43][44][45] . All Figure 2.…”

Section: Seismic Reflection Profilesmentioning

confidence: 99%

Crustal deformation, active tectonics and seismic potential in the Sicily Channel (Central Mediterranean), along the Nubia–Eurasia plate boundary

Palano

Ursino

Spampinato

et al. 2020

Sci Rep

View full text Add to dashboard Cite

Based on multidisciplinary data, including seismological and geodetic observations, as well as seismic reflection profiles and gravity maps, we analysed the pattern of crustal deformation and active tectonics in the Sicily Channel, a key observation point to unravel the complex interaction between two major plates, Nubia and Eurasia, in the Mediterranean Sea. Our data highlight the presence of an active ~ 220-km-long complex lithospheric fault system (here named the Lampedusa-Sciacca Shear Zone), approximately oriented N–S, crossing the study area with left-lateral strike-slip deformations, active volcanism and high heat flow. We suggest that this shear zone represents the most active tectonic domain in the area, while the NW–SE elongated rifting pattern, considered the first order tectonic feature, appears currently inactive and sealed by undeformed recent (Lower Pleistocene?) deposits. Estimates of seismological and geodetic moment-rates, 6.58 × 1015 Nm/year and 7.24 × 1017 Nm/year, respectively, suggests that seismicity accounts only for ~ 0.9% of crustal deformation, while the anomalous thermal state and the low thickness of the crust would significantly inhibit frictional sliding in favour of creeping and aseismic deformation. We therefore conclude that a significant amount of the estimated crustal deformation-rate occurs aseismically, opening new scenarios for seismic risk assessments in the region.

show abstract

Section: Seismic Reflection Profilesmentioning

confidence: 99%

Crustal deformation, active tectonics and seismic potential in the Sicily Channel (Central Mediterranean), along the Nubia–Eurasia plate boundary

Palano

Ursino

Spampinato

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The volcanic centers of the GVF, those on the Nameless Bank and in the nearshore of Capo Granitola-Sciacca coast, together with Cimotoe volcanic seamount (Civile et al, 2015(Civile et al, , 2018Coltelli et al, 2016;Lodolo et al, 2019a), are aligned along a nearly N-S oriented belt extending southwards for almost 200 km up to Linosa Island. This belt was related to a lithospheric-scale transpressive transfer zone (the Capo Granitola-Sciacca Fault Zone, CGSFZ; see inset in Figure 1) between the western and eastern sectors of the Sicily Channel Rift Zone, characterized by different amount of rifting (Argnani, 1990;Civile et al, 2014Civile et al, , 2018.…”

Section: Geological Settingmentioning

confidence: 97%

“…The overall N-S alignment of the GVF cones, together with the other volcanic centers identified south (i.e., Cimotoe volcano, Calanchi et al, 1989;Civile et al, 2015) and north (a few small isolated cones, Civile et al, 2015Civile et al, , 2018Lodolo et al, 2019a) of the field, reflects the orientation of the Capo Granitola-Sciacca Fault Zone (Fedorik et al, 2018; Figure 1). Based on seismicity data, Calò and Parisi (2014) interpreted this transfer zone as the shallow expression of a sub-vertical lithospheric shear zone favoring magma ascent in this region.…”

Section: Distribution Of Volcanic Seamounts and Tectonic Controlmentioning

confidence: 97%

“…The northern side of the Sicily Channel is characterized by a very uneven bathymetry, being a composite array of shallow continental shelves (the Siculo-Maltese Shelf and the Adventure, and Malta plateau), deep depressions, such the faultcontrolled Pantelleria, Linosa, and Malta grabens and a foredeep depocenter (the Gela Basin), and topographic highs, such us several small-to middle-scale banks of sedimentary origin (e.g., the Nerita, Terribile, Nameless, and Madrepore banks) (Colantoni, 1975;Calanchi et al, 1989;Cavallaro et al, 2017; Figure 1). Within the Sicily Channel, a widespread and scattered volcanism is known to have occurred during Upper Miocene to Pleistocene times, building up the alkaline volcanic islands of Linosa and Pantelleria and several other volcanic centers (e.g., Anfitrite, Tetide Galatea, Cimotoe banks) (Beccaluva et al, 1981;Calanchi et al, 1989;Rotolo et al, 2006;Civile et al, 2008Civile et al, , 2015Lodolo et al, 2012Lodolo et al, , 2019aPensa et al, 2019; Figure 1). Volcanism occurred up to historical times, with the 1831 submarine eruptions of Ferdinandea Island (Gemmellaro, 1831;Marzolla, 1831;Colantoni et al, 1975;Dean, 1980) and the 1891 eruption off NW Pantelleria Island (Washington, 1909; FIGURE 1 | Shaded-relief bathymetric map of the northern portion of the Sicily Channel (from GEBCO-General Bathymetric Chart of the Oceans-Digital Atlas).…”

Section: Geological Settingmentioning

confidence: 99%

“…Volcanism occurred up to historical times, with the 1831 submarine eruptions of Ferdinandea Island (Gemmellaro, 1831;Marzolla, 1831;Colantoni et al, 1975;Dean, 1980) and the 1891 eruption off NW Pantelleria Island (Washington, 1909; FIGURE 1 | Shaded-relief bathymetric map of the northern portion of the Sicily Channel (from GEBCO-General Bathymetric Chart of the Oceans-Digital Atlas). The blue box shows the study area; the red, brown and yellow circles indicate the location of volcanic centers, sedimentary banks and sedimentary banks with scattered volcanic manifestations on top, respectively (from Calanchi et al, 1989;Civile et al, 2015Civile et al, , 2018Lodolo et al, 2019a). CGFS, Capo Granitola fault system; SFS, Sciacca fault system; SMFT, Sicilian-Maghrebian fold-and-thrust belt front (from Civile et al, 2018).…”

Section: Geological Settingmentioning

confidence: 99%

See 2 more Smart Citations

The Graham Volcanic Field Offshore Southwestern Sicily (Italy) Revealed by High-Resolution Seafloor Mapping and ROV Images

Cavallaro

Coltelli

2019

Front. Earth Sci.

View full text Add to dashboard Cite

New insights on the evolution of the Linosa volcano (Sicily Channel) from the study of its submarine portions

et al. 2020

View full text Add to dashboard Cite

Linosa Island represents the emergent tip of a mostly submarine, much wider volcanic edifice, with at least 96%of its areal extent lying below sea level. Marine geological surveys carried out in 2016 and 2017 allowed to reconstruct the submarine portions of Linosa and to characterize the main volcanic features, providing new, unexpected insights on the evolution of this little-explored volcanic complex. In particular, the submarine setting of the NW offshore is represented by a ~10-km long volcanic belt punctuated by a number of small eruptive cones, appearing more recent with respect to the assumed Mid/Late-Quaternary age of volcanism on the island. This evidence suggests that the growth of the volcanic edifice has likely been more complex than that claimed on the base of subaerial volcanism only, and supports a north-westward migration of the activity over time. The submarine southern flank of the volcanic edifice is also characterized by eccentric eruptive cones, but mostly without evidences of recent activity. The main processes responsible for the growth and evolution of Linosa volcano and their possible relative chronology are discussed in the framework of what previously known on the base of the limited subaerial portions, with implications on the potential hazard of the volcanic edifice (considered as not-active in recent times). Similarity with the Pantelleria volcano, located in the NW Sicily Channel, are also evidenced, especially for what regards the distribution and morphometric characteristics of eruptive cones occurring in the submarine portions of both islands.

show abstract

A series of volcanic edifices discovered a few kilometers off the coast of SW Sicily

Cited by 14 publications

References 35 publications

Crustal deformation, active tectonics and seismic potential in the Sicily Channel (Central Mediterranean), along the Nubia–Eurasia plate boundary

Crustal deformation, active tectonics and seismic potential in the Sicily Channel (Central Mediterranean), along the Nubia–Eurasia plate boundary

The Graham Volcanic Field Offshore Southwestern Sicily (Italy) Revealed by High-Resolution Seafloor Mapping and ROV Images

New insights on the evolution of the Linosa volcano (Sicily Channel) from the study of its submarine portions

Contact Info

Product

Resources

About