New GPS constraints on the kinematics of the Apennines subduction

Devoti, R.; Riguzzi, Federica; Cuffaro, Marco; Doglioni, Carlo

doi:10.1016/j.epsl.2008.06.031

Cited by 166 publications

(163 citation statements)

References 49 publications

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“…This scenario is similar to the current situation of the Adria plate, which subducts underneath Italy (short slab) and the Dinarides (long slab; Gvirtzman and Nur, 2001;Di Stefano et al, 2009;Giacomuzzi et al, 2012). The Adria plate now moves as a whole towards the Dinarides, causing rapid extension east of the Apennines (Devoti et al, 2008;Weber et al, 2010). The proposed model for exhumation of high-pressure rocks in a divergent double subduction zone is novel but bears some similarities with models for exhumation by slab rotation (Hacker et al 2000;Webb et al, 2013) or slab eduction (Andersen et al, 1991;Duretz et al, 2012;Brueckner and Cuthbert, 2013).…”

Section: Middle Triassic (240-220 Ma)mentioning

confidence: 75%

Tectonic evolution and high-pressure rock exhumation in the Qiangtang terrane, central Tibet

et al. 2015

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Abstract. Conflicting interpretations of the > 500 km long, east-west-trending Qiangtang metamorphic belt have led to very different and contradicting models for the PermoTriassic tectonic evolution of central Tibet. We define two metamorphic events, one that only affected pre-Ordovician basement rocks and one subduction-related Triassic highpressure metamorphism event. Detailed mapping and structural analysis allowed us to define three main units that were juxtaposed due to collision of the north and south Qiangtang terranes after closure of the Ordovician-Triassic ocean that separated them. The base is formed by the Precambrian-Carboniferous basement, followed by nonmetamorphic ophiolitic mélange containing mafic rocks that range in age from the Ordovician to Middle Triassic. The top of the sequence is formed by strongly deformed sedimentary mélange that contains up to > 10 km size rafts of both unmetamorphosed Permian sediments and highpressure blueschists. We propose that the high-pressure rocks were exhumed from underneath the south Qiangtang terrane in an extensional setting caused by the pull of the northward subducting slab of the Shuanghu-Tethys. Highpressure rocks, sedimentary mélange and margin sediments were thrust on top of the ophiolitic mélange that was scraped off the subducting plate. Both units were subsequently thrust on top of the south Qiantang terrane continental basement. Onset of Late Triassic sedimentation marked the end of the amalgamation of both Qiangtang terranes and the beginning of spreading between Qiantang and north Lhasa to the south, leading to the deposition of thick flysch deposits in the Jurassic.

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Section: Middle Triassic (240-220 Ma)mentioning

confidence: 75%

Tectonic evolution and high-pressure rock exhumation in the Qiangtang terrane, central Tibet

et al. 2015

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“…1) is represented by a subduction complex bordered by two major structural features: the Malta escarpment to the SW and the Apulia escarpment to the NE. The CA accretionary wedge developed due to the SE-NW African/Eurasian plate convergence, presently occurring at a very slow rate (5 mm a −1 or less), according to recent Global Positioning System (GPS) studies (Calais et al, 2003;Reilinger et al, 2006;Serpelloni et al, 2007;D'Agostino et al, 2008;Devoti et al, 2008). Despite the very slow present-day plate convergence, subduction might be locally still active.…”

Section: Geological Settingmentioning

confidence: 99%

“…This M is associated with a maximum displacement along the Splay-3 fault system of about 2 m. Considering that the convergence rate reported by GPS is between 2 and 4 mm a −1 (D'Agostino et al, 2008;Devoti et al, 2008), the first approximation of recurrence time of such earthquakes is about 500-1000 a.…”

Section: Correlation With Historical Earthquakesmentioning

confidence: 99%

Active faults and historical earthquakes in the Messina Straits area (Ionian Sea)

Polonia

Torelli

Gasperini

et al. 2012

Nat. Hazards Earth Syst. Sci.

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Abstract. The Calabrian Arc (CA) subduction complex is located at the toe of the Eurasian Plate in the Ionian Sea, where sediments resting on the lower plate have been scraped off and piled up in the accretionary wedge due to the African/Eurasian plate convergence and back arc extension. The CA has been struck repeatedly by destructive historical earthquakes, but knowledge of active faults and source parameters is relatively poor, particularly for seismogenic structures extending offshore. We analysed the fine structure of major tectonic features likely to have been sources of past earthquakes: (i) the NNW-SSE trending Malta STEP (Slab Transfer Edge Propagator) fault system, representing a lateral tear of the subduction system; (ii) the out-of-sequence thrusts (splay faults) at the rear of the salt-bearing Messinian accretionary wedge; and (iii) the Messina Straits fault system, part of the wide deformation zone separating the western and eastern lobes of the accretionary wedge.Our findings have implications for seismic hazard in southern Italy, as we compile an inventory of first order active faults that may have produced past seismic events such as the 1908, 1693 and 1169 earthquakes. These faults are likely to be source regions for future large magnitude events as they are long, deep and bound sectors of the margin characterized by different deformation and coupling rates on the plate interface.

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“…Este cluster ha sido generado por el Istituto Nazionale di Geofisica e Vulcanología (INGV) (Devoti et al 2008). Esta decisión se tomó en el año 2009 para conseguir un conjunto de estaciones fiduciales más estable.…”

Section: Procesado De Datos En La Ujaunclassified

“…26 (2014) 25-33 29 El campo de velocidades se estima mediante el uso de un software especialmente diseñado para ello (NEVE) (Devoti et al 2008), desarrollado por el Istituto Nazionale di Geofisica e Vulcanologia di Roma (Italia), que trabaja con un modelo estocástico completo. Dicho campo se calcula a partir de las series temporales en el marco de referencia considerado.…”

Section: Física De La Tierraunclassified