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Santoro, Enrico
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Santoro, Enrico
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- PublicationOpen AccessGeometry and modeling of an active offshore thrust-related fold system: the Amendolara Ridge, Ionian Sea, southern Italy(Società Geologica Italiana, 2012-09-18)
; ; ; ; ; ; ; ; ;Ferranti, Luigi; Dipartimento di Scienze della Terra, Università degli Studi di Napolii Federico II, Napoli ;Pepe, Fabrizio; Dipartimento di Scienze della Terra e del Mare, Università di Palermo ;Burrato, Pierfrancesco; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Santoro, Enrico; Dipartimento di Scienze della Terra, Università degli Studi di Napolii Federico II, Napoli ;Mazzella, Maria Enrica; Dipartimento di Scienze della Terra, Università degli Studi di Napolii Federico II, Napoli ;Morelli, Danilo; Dipartimento di Scienze Geologiche, Ambientali e Marine, Università di Trieste ;Passaro, Salvatore; Istituto per l’Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Napoli ;Vannucci, Gianfranco; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia; ; ; ; ; ; ; ; ; ; ; ; ; ;Critelli, Salvatore ;Muto, Francesco ;Perri, Francesco ;Petti, Fabio Massimo ;Sonnino, MaurizioZuccari, AlessandroOn the Ionian Sea coast of southern Italy, spanning the transition from the Calabrian Arc to the Apennines, NE-directed motion of the thin-skinned frontal thrust belt of the Apennines toward the Apulian foreland reportedly ceased during the Early-Middle Pleistocene. The submarine extension of the frontal thrust belt is represented by the Amendolara ridge, which stretches for over 80 km to the SE beneath the Taranto Gulf. High-resolution marine geophysical data collected on the Amendolara ridge during the TEATIOCA_2011 cruise provided unequivocal constraints to assert active fault-related fold growth. Single-channel seismic (sparker) and acoustic CHIRP profiles, corroborated by multibeam mapping and shallow coring, form the novel dataset to constrain the near-bottom evolution. The new data were benchmarked to the crustal geometry by means of interpretation of existing multichannel seismic profiles.395 376 - PublicationOpen AccessDeformed Pleistocene marine terraces along the Ionian sea margin of southern Italy: Unveiling blind fault-related folds contribution to coastal uplift(Società Geologica Italiana, 2012-09-18)
; ; ; ; ; ;Santoro, Enrico; Dipartimento di Scienze della Terra, Università degli Studi di Napoli Federico II, Napoli ;Ferranti, Luigi; Dipartimento di Scienze della Terra, Università degli Studi di Napoli Federico II, Napoli ;Burrato, Pierfrancesco; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Mazzella, Maria Enrica; Dipartimento di Scienze della Terra, Università degli Studi di Napoli Federico II, Napoli ;Monaco, Carmelo; Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Sezione di Scienze della Terra, Università di Catania; ; ; ; ; ; ; ; ; ; ;Critelli, Salvatore ;Muto, Francesco ;Perri, Francesco ;Petti, Fabio Massimo ;Sonnino, MaurizioZuccari, AlessandroMorphotectonic analysis and fault numeric modeling of uplifted marine terraces along the southern half of the Taranto Gulf , between the Sibari and San Nicola plains (Fig. 1), allow us to place quantitative constraints on Middle Pleistocene-Holocene deformation in the Southern Apennines.270 283 - PublicationRestrictedAn active oblique-contractional belt at the transition between the Southern Apennines and Calabrian Arc: The Amendolara Ridge, Ionian Sea, Italy(2014-11-12)
; ; ; ; ; ; ; ; ;Ferranti, L.; Dipartimento di Scienze della Terra, dell'Ambiente e delle Risorse, Università degli Studi di Napoli Federico II, Naples, Italy ;Burrato, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Pepe, F.; Dipartimento di Scienze della Terra e del Mare, Università di Palermo, Palermo, Italy ;Santoro, E.; Robertson, CGG Company, Wales, UK ;Mazzella, M. E.; INTGEOMOD, Perugia, Italy ;Morelli, D.; Dipartimento di Scienze Geologiche, Ambientali e Marine, Università di Trieste, Trieste, Italy ;Passaro, S.; Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Naples, Italy ;Vannucci, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia; ; ; ; ; ; ; High-resolution, single-channel seismic and multibeam bathymetry data collected at the Amendolara Ridge, a key submarine area marking the junction between the Apennine collision belt and the Calabrian subduction forearc, reveal active deformation in a supposedly stable crustal sector. New data, integrated with existing multichannel seismic profiles calibrated with oil-exploratory wells, show that middle to late Pleistocene sediments are deformed in growth folds above blind oblique-reverse faults that bound a regional pop-up. Data analysis indicates that ~10 to 20 km long banks that top the ~80 km long, NW-SE trending ridge are structural culminations above en echelon fault segments. Numeric modeling of bathymetry and stratigraphic markers suggests that three 45° dipping upper crustal (2–10 km) fault segments underlie the ridge, with slip rates up to ~0.5 mm/yr. Segments may be capable with M ~ 6.1–6.3 earthquakes, although an unknown fraction of aseismic slip undoubtedly contributes to deformation. The fault array that bounds the southern flank of the ridge (Amendolara Fault System) parallels a belt of Mw < 4.7 strike-slip and thrust earthquakes, which suggest current left-oblique reverse motion on the array. The eastern segment of the array shows apparent morphologic evidence of deformation and might be responsible for Mw ≤ 5.2 historic events. Late Pliocene-Quaternary growth of the oblique contractional belt is related to the combined effects of stalling of Adriatic slab retreat underneath the Apennines and subduction retreat of the Ionian slab underneath Calabria. Deformation localization was controlled by an inherited mechanical interface between the thick Apulian (Adriatic) platform crust and the attenuated Ionian Basin crust.476 405 - PublicationOpen AccessDeformed Pleistocene marine terraces along the Ionian sea margin of southern Italy: unveiling blind fault-related folds contribution to coastal uplift(2013-06-27)
; ; ; ; ; ;Santoro, E.; Università di Napoli “Federico II”, Dipartimento di Scienze della Terra ;Ferranti, L.; Università di Napoli “Federico II”, Dipartimento di Scienze della Terra ;Burrato, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Mazzella, M. E.; Università di Napoli “Federico II”, Dipartimento di Scienze della Terra ;Monaco, C.; Università di Catania, Dipartimento di Scienze Geologiche; ; ; ; Morphotectonic analysis and fault numeric modeling of uplifted marine terraces along the Ionian Sea coast of the Southern Apennines allowed us to place quantitative constraints on middle Pleistocene-Holocene deformation. Ten terrace orders uplifted to as much as +660 m were mapped along ~80 km of the Taranto Gulf coastline. The shorelines document both a regional and a local, fault-induced contribution to uplift. The intermingling between the two deformation sources is attested by three 10 km scale undulations superimposed on a 100 km scale northeastward tilt. The undulations spatially coincide with the trace of NW-SE striking transpressional faults that affected the coastal range during the early Pleistocene. To test whether fault activity continued to the present, we modeled the differential uplift of marine terraces as progressive elastic displacement above blind oblique-thrust ramps seated beneath the coast. Through an iterative and mathematically based procedure, we defined the best geometric and kinematic fault parameters as well as the number and position of fault segments. Fault numerical models predict two fault-propagation folds cored by blind thrusts with slip rates ranging from 0.5 to 0.7 mm/yr and capable of generating an earthquake with a maximum moment magnitude of 5.9–6.3. Notably, we find that the locus of predominant activity has repeatedly shifted between the two fault systems during time and that slip rates on each fault have temporally changed. It is not clear if the active deformation is seismogenic or dominated by aseismic creep; however, the modeled faults are embedded in an offshore transpressional belt that may have sourced historical earthquakes.338 665 - PublicationOpen AccessMorphometric analysis in the offshore of the southern Taranto Gulf: unveiling the structures controlling the Late Pleistocene-Holocene bathymetric evolution(Società Geologica Italiana, 2012-09-18)
; ; ; ; ; ;Santoro, Enrico; Dipartimento di Scienze della Terra, Università degli Studi di Napolii Federico II, Napoli ;Ferranti, Luigi; Dipartimento di Scienze della Terra, Università degli Studi di Napolii Federico II, Napoli ;Passaro, Salvatore; Istituto per l’Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Napoli ;Burrato, Pierfrancesco; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Morelli, Danilo; Dipartimento di Scienze Geologiche, Ambientali e Marine, Università di Trieste; ; ; ; ; ; ; ; ; ; ;Critelli, Salvatore ;Muto, Francesco ;Perri, Francesco ;Petti, Fabio Massimo ;Sonnino, MaurizioZuccari, AlessandroThe present study is focused on a morphometric analysis of high resolution multibeam data (10m, 5m and, locally, 2m resolution), that were acquired during the oceanographic TEATIOCA 2011 campaign along a sector of the Ionian margin of northern Calabria. The integration of morphometric analysis with sparker and chirp data allowed to unveil basic but robust information about: 1. hierarchy of the fault systems controlling the bathymetric evolution; 2. the interplay between tectonic and erosional processes in sea-floor modeling; 3. uplift rates; 4. tilting processes.335 202