![]() ![]() Pure shear-dominated transpression usually gives steep lineations, while simple shear-dominated transpression favors horizontal lineations. ![]() Commonly developed features include transposition foliations, lineations, stylolites, folds, and reverse faults. Transpressional shear zones are characterized by an association of structures that suggest zone-normal shortening and zone-parallel shearing. More locally, transpression occurs within restraining bends in strike-slip fault zones. Transpression that occurs on a regional scale along plate boundaries is characterized by oblique convergence. During shortening, unless material is lost, transpression produces vertical thickening in the crust. The relative amounts of shortening and strike-slip can be expressed in the convergence angle alpha which ranges from zero (ideal strike-slip) to 90 degrees (ideal convergence). It is generally very unlikely that a deforming body will experience "pure" shortening or "pure" strike-slip. This movement ends up resulting in oblique shear. In geology, transpression is a type of strike-slip deformation that deviates from simple shear because of a simultaneous component of shortening perpendicular to the fault plane. Si specifica inoltre che la simulazione contiene calcoli effettuati con dati e algoritmi di pubblico dominio e deve quindi essere considerata come un mero ausilio al calcolo svolgibile manualmente o con strumenti equivalenti.Type of strike-slip deformation Simple model for transpression: strike-slip zone with an additional and simultaneous shortening across the zone. Cineca, l’Università di Modena e Reggio Emilia e il Focus Group IRIS non si assumono alcuna responsabilità in merito all’uso che il diretto interessato o terzi faranno della simulazione. La presente simulazione è stata realizzata sulla base delle specifiche raccolte sul tavolo ER del Focus Group IRIS coordinato dall’Università di Modena e Reggio Emilia e delle regole riportate nel DM 589/2018 e allegata Tabella A. Si consideri che Anvur calcola i valori degli indicatori all'ultima data utile per la presentazione delle domande. La simulazione può differire dall'esito di un’eventuale domanda ASN sia per errori di catalogazione e/o dati mancanti in IRIS, sia per la variabilità dei dati bibliometrici nel tempo. La simulazione si basa sui dati IRIS e sugli indicatori bibliometrici alla data indicata e non tiene conto di eventuali periodi di congedo obbligatorio, che in sede di domanda ASN danno diritto a incrementi percentuali dei valori. Si ricorda che il superamento dei valori soglia (almeno 2 su 3) è requisito necessario ma non sufficiente al conseguimento dell'abilitazione. Il report seguente simula gli indicatori relativi alla propria produzione scientifica in relazione alle soglie ASN 2021-2023 del proprio SC/SSD. Slip distribution of the FebruMw 7.8 and Mw 7.6, Kahramanmaraş, Turkey earthquake sequence in the East Anatolian Fault Zone Barbot Sylvain Luo Heng Wang Teng Hamiel Yariv Piatibratova Oksana Muhammad Tahir Braitenberg Carla Gurbuz Gokhan Abstract These events underscore the high seismic potential of immature fault systems. For the mainshock, rupture propagation stopped southward at the diffuse termination of the East Anatolian fault and tapered off northward into the Pütürge segment, some 20 km south of the 2020 Mw 6.8 Elaziğ earthquake, highlighting a potential seismic gap. Most aftershocks cluster at major fault bends, surround the regions of high coseismic slip, or extend outward of the ruptured faults. Coseismic slip extends from the surface to about 15 km depth with a shallow slip deficit. High-rate Global Navigation Satellite System data constrain each event separately. Pixel tracking of optical and synthetic aperture radar data of the Sentinel-2 and Sentinel-1 satellites, respectively, provide near-field surface displacements. We use remote-sensing observations to constrain the spatial distribution of coseismic slip for these two events and the February 20 Mw 6.4 aftershock near Antakya. The Mw 7.6 aftershock involved nearby left-lateral strike-slip faults of the East Anatolian Fault Zone, causing a 150 km-long rupture. The moment magnitude (Mw) 7.8 mainshock ruptured a 310 km-long segment of the left-lateral East Anatolian Fault, propagating through multiple releasing step-overs. On February 6, 2023, two large earthquakes occurred near the Turkish town of Kahramanmaraş. 1 Contributo in Rivista(Articolo Rivista). ![]()
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