Structural and tectono-stratigraphic review of the Sicilian orogen and new insights from analogue modeling

Henriquet, Maxime; Dominguez, Stéphane; Barreca, Giovanni; Malavieille, Jacques; Monaco, Carmelo

doi:10.1016/j.earscirev.2020.103257

Cited by 29 publications

(18 citation statements)

References 209 publications

(387 reference statements)

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“…From a geological point of view, this territory is mainly made up of sedimentary successions belonging to different periods. The dominance of Flysch is mostly noted, the oldest sediments belonging to the Alpine Tethys Units [40], they are Cretaceous in age and are represented by deep-water flyschs and scaly clays. Most of the outcropping rocks are part of the so-called Flysch of Monte Soro (upper Tithonian, lower Cretaceous) and Numidian (lower Oligocene Miocene) [41].…”

Section: Study Areamentioning

confidence: 99%

Unexpected Discovery of Thelypteris palustris (Thelypteridaceae) in Sicily (Italy): Morphological, Ecological Analysis and Habitat Characterization

Sciandrello

Cambria

Galdo

et al. 2021

Plants

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Thelypteris palustris Schott (Thelypteridaceae), known as “marsh fern”, is infrequent in the Mediterranean area. The occurrence of this species is known for almost all the Italian regions (except for Sardinia and Sicily), but with rare and declining populations. During floristic fieldwork on the Sicilian wetlands, a new unknown population was found. The aim of this paper is to analyze the morphological traits of the species, as well as its ecological features and the floristic composition of the plant communities where it lives. According to IUCN guidelines, here we provide the regional assessment (Sicily) of T. palustris. To analyze its morphological features, many living plants were examined, with particular attention to the spore structure. A total of 179 plots (110 species) and 34 pools were sampled. Our results highlight the relic character of the species which is at the southernmost border of its distribution range. The micro-morphological investigations on the spores show that the Sicilian population belongs to the subsp. palustris. The floristic analysis confirms the clear dominance of perennial temperate-cold zones Eurasian taxa. Finally, a new association, Thelypterido palustris-Caricetum paniculatae, within the Caricion gracilis alliance (Phragmito-Magnocaricetea class) is described.

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Section: Study Areamentioning

confidence: 99%

Unexpected Discovery of Thelypteris palustris (Thelypteridaceae) in Sicily (Italy): Morphological, Ecological Analysis and Habitat Characterization

Sciandrello

Cambria

Galdo

et al. 2021

Plants

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“…9.7.1; https://www.seequent.com/products-solutions/geosoft-oasis-montaj/ ). a foreland area cropping out in the Hyblean Plateau and representing the onshore portion of the relative undeformed North Africa-Pelagian basement bounded to the east by the Ionian plate; a tight Pliocene–Pleistocene NW-dipping foredeep, prolonging from SE to the Gela Basin; the orogenic wedge made up of an E-SE trending fold and thrust complex 6 , 10 , 20 – 22 made up of a European portion (Peloritani Units), a Tethyan element (Sicilide Units) and an African component (Maghrebian Sicilian Units) 2 , 3 , 9 , 20 , 23 . …”

Section: Geological Settingmentioning

confidence: 99%

“…the orogenic wedge made up of an E-SE trending fold and thrust complex 6 , 10 , 20 – 22 made up of a European portion (Peloritani Units), a Tethyan element (Sicilide Units) and an African component (Maghrebian Sicilian Units) 2 , 3 , 9 , 20 , 23 .…”

Section: Geological Settingmentioning

confidence: 99%

“…In particular, deep seismic investigations led to construct geological cross-sections extending from western to eastern Sicily (e.g. 1 – 3 , 6 , 16 , 18 , 22 , 24 , 41 , 42 ). Deep seismic soundings (DSS) and wide-angle reflection/refraction profiling (WARRP) sections 34 , 36 , 43 – 45 were performed since the 70s, providing information on the main crustal units and discontinuities beneath the northern border of the continental Sicily.…”

Section: Geophysical Backgroundmentioning

confidence: 99%

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Crustal structure of Sicily from modelling of gravity and magnetic anomalies

Milano

Kelemework

Manna

et al. 2020

Sci Rep

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We aim at modeling the main crustal and thermal interfaces of Sicily (Italy), a key area for understanding the geological complexity at the collisional boundary between the African and European plates. To this end, we analyze the gravity and magnetic fields, integrated with information from well logs, geology, heat flow, and seismic data. In order to make the most accurate description of the crustal structure of the area, we modeled with different methodologies the carbonate and crystalline top surfaces, as well as the Moho and the Curie isotherm surface. The reconstruction of the carbonate platform is achieved using a nonlinear 3D method constrained by the available seismic and borehole data. The crystalline top, the Curie, and the Moho are instead estimated by spectral analysis of both gravity and magnetic data. The results show a complex carbonate basement and a deep crystalline crust in central Sicily, with a prominent uplift beneath the Hyblean Plateau. Maps of the Moho and the Curie isotherm surface define a variable thermal and structural setting of Sicily, with very thin crust in the southern and eastern sectors, where high heat flow is found, and deep and cold crust below the Caltanissetta Basin.

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“…Four main tectono‐stratigraphic domains are attributed to the Sicilian orogen (Figure 1, e.g., Henriquet et al., 2020): (a) To the northeast (Peloritan and Calabrian mountain ranges), the Calabro‐Peloritani block corresponds to upper‐plate continental remnants derived from the European margin. (b) In Central and Northern Sicily, the Alpine Tethys accretionary wedge relics come from the offscraping of the neo‐Tethyan sedimentary cover during the Oligocene‐Early Miocene subduction phase.…”

Section: Introductionmentioning

confidence: 99%

Present‐Day Surface Deformation of Sicily Derived From Sentinel‐1 InSAR Time‐Series

et al. 2022

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The Quaternary geodynamics of the Central Mediterranean region is controlled by the migration of narrow orogenic belts within the slow Nubia‐Eurasia plate convergence. As testified by the occurrence of major volcanic and seismic events, the Eastern Sicilian Margin is presently one of the most active regions. Using a Permanent‐Scatterer approach, we process Sentinel‐1 satellite images acquired from 2015 to 2020 to provide an island‐wide quantification of surface displacements at a high spatiotemporal resolution. We then convert the calculated mean surface velocities along the ascending and descending satellite line of sight into the ITRF2014 reference frame by using GNSS velocity data derived from regional stations. The resulting pseudo‐3D velocity field mainly highlights a general uplift of about 1.5 ± 0.5 mm/yr of the Nebrodi‐Peloritani range and its differential motion with respect to mainland Sicily along the Cefalù‐Etna seismic zone. Permanent/Persistent‐Scatterer (PS) vertical velocities in the Eastern Hyblean region reveal a long wavelength eastward downbending of the margin, including the inferred epicentral area of the 1693 Noto earthquake. Compared to Quaternary coastal uplift rates, these results confirm the relative low activity of Western Sicily, a potential slow uplift of South‐Central Sicily and a significant discrepancy along the Eastern Hyblean margin were PS‐derived vertical velocities that appear 2–3 mm/yr lower than the Quaternary rates. Over the 2015–2020 timespan, transient processes are also captured, notably on Mount Etna, showing both magmatic pressurization uplift and collapse of the eastern flank, but also all over Sicily where numerous gravitational mass movements and anthropogenic ground subsidence are detected.

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Structural and tectono-stratigraphic review of the Sicilian orogen and new insights from analogue modeling

Cited by 29 publications

References 209 publications

Unexpected Discovery of Thelypteris palustris (Thelypteridaceae) in Sicily (Italy): Morphological, Ecological Analysis and Habitat Characterization

Unexpected Discovery of Thelypteris palustris (Thelypteridaceae) in Sicily (Italy): Morphological, Ecological Analysis and Habitat Characterization

Crustal structure of Sicily from modelling of gravity and magnetic anomalies

Present‐Day Surface Deformation of Sicily Derived From Sentinel‐1 InSAR Time‐Series

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