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  • 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology  (31)
  • Condensed Matter: Structure, etc.
Collection
Years
  • 1
    Publication Date: 2013-09-10
    Description: Author(s): Luca Tanzi, Eleonora Lucioni, Saptarishi Chaudhuri, Lorenzo Gori, Avinash Kumar, Chiara D’Errico, Massimo Inguscio, and Giovanni Modugno We investigate the momentum-dependent transport of 1D quasicondensates in quasiperiodic optical lattices. We observe a sharp crossover from a weakly dissipative regime to a strongly unstable one at a disorder-dependent critical momentum. In the limit of nondisordered lattices the observations sugges... [Phys. Rev. Lett. 111, 115301] Published Mon Sep 09, 2013
    Keywords: Condensed Matter: Structure, etc.
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
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  • 2
    Publication Date: 2014-08-26
    Description: Author(s): Chiara D’Errico, Eleonora Lucioni, Luca Tanzi, Lorenzo Gori, Guillaume Roux, Ian P. McCulloch, Thierry Giamarchi, Massimo Inguscio, and Giovanni Modugno We employ ultracold atoms with controllable disorder and interaction to study the paradigmatic problem of disordered bosons in the full disorder-interaction plane. Combining measurements of coherence, transport and excitation spectra, we get evidence of an insulating regime extending from weak to st... [Phys. Rev. Lett. 113, 095301] Published Mon Aug 25, 2014
    Keywords: Condensed Matter: Structure, etc.
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
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  • 3
    Publication Date: 2021-06-03
    Description: La definizione dell’attività di strutture tettoniche è un pre-requisito fondamentale per la comprensione delle caratteristiche sismotettoniche di un settore del territorio italiano che, come l’Appennino centrale, è stato interessato in tempi storici da eventi sismici di elevata magnitudo. Dunque, l’individuazione e la caratterizzazione dell’attività tardopleistocenica-olocenica di faglie potenzialmente responsabili di forti terremoti è di cruciale importanza in un’ottica di valutazione della pericolosità sismica. Nel presente lavoro vengono analizzate due faglie normali che interessano l’Appennino centrale, la faglia normale che delimita ad ovest la Montagna dei Fiori, uno dei rilievi più esterni della catena, e quella che borda a sud-ovest il bacino di Leonessa, con l’obiettivo di dare un contributo per una migliore definizione delle caratteristiche sismotettoniche di questo settore del territorio nazionale. La faglia normale della Montagna dei Fiori è una struttura lunga almeno 15 km la cui attività è stata responsabile della dislocazione di circa 900 m del substrato carbonatico. Il piano di faglia e la scarpata ad esso associata sono visibili in modo discontinuo lungo il versante. I rilevamenti geologici e geomorfologici effettuati chiariscono come l’esposizione del piano di faglia sia esclusivamente legata a fenomeni gravitativi, anche di grandi dimensioni, che interessano le formazioni calcareo-marnose (Scaglia Cinerea, Marne con Bisciaro, Marne con Cerrogna) affioranti al tetto della struttura, e a fenomeni di erosione selettiva fra le formazione della successione umbro-marchigiana affioranti al letto ed al tetto. La faglia, inoltre, è sigillata da una paleosuperficie di origine erosiva sospesa varie centinaia di metri al di sopra del fondovalle attuale del fiume Salinello (in località Colle Osso Caprino) e da brecce di versante (in località Pozzoranno) associabili a quelle riconosciute in modo ubiquitario in Appennino entrale ed attribuite al Pleistocene inferiore. Come per il caso della Montagna dei Fiori, il piano della faglia bordiera del bacino di Leonessa è visibile in modo discontinuo lungo i versanti che delimitano il settore meridionale della depressione. I nostri rilevamenti di terreno ci consentono di attribuire l’esposizione del piano i) a fenomeni gravitativi che interessano la fascia detritica depostasi alla base della scarpata di faglia e ii) a fenomeni di erosione selettiva fra i detriti ed il substrato carbonatico affiorante al letto della struttura tettonica, ad opera di corsi d’acqua perpendicolari al versante. Depositi di conoide alluvionale (“conoide alluvionale di Leonessa”) attribuiti da alcuni autori ad un contesto cronologico compreso fra la fine del Pleistocene inferiore ed il Pleistocene medio e che determinano una superficie terrazzata chiaramente visibile in tutto il bacino, non sembrano essere stati interessati (né dislocati né basculati) dall’attività di tale faglia. Inoltre, ulteriori due ordini di conoide alluvionale depostisi al di sopra di quello sopra citato ed attribuibili tentativamente al Pleistocene superiore, sigillano chiaramente la struttura tettonica. Dunque, dalle nostre osservazioni si evince che, per quello che riguarda la faglia normale della Montagna dei Fiori, tale struttura tettonica non risulta essere attiva almeno a partire dal Pleistocene inferiore e che l’esposizione del piano di faglia è esclusivamente legata a fenomeni gravitativi e di morfoselezione. Ciò corroborerebbe quanto proposto da altri autori che attribuiscono a questa struttura tettonica esclusivamente un’attività pre- e sin- fase tettonica compressiva. Per quello che riguarda il bacino di Leonessa, è possibile ipotizzare che la faglia bordiera sia stata attiva fino al Pleistocene inferiore, creando lo spazio per l’accumulo dei depositi del conoide alluvionale di Leonessa. L’attività sarebbe poi terminata, o quantomeno si sarebbe ridotta ad un tasso decisamente inferiore a quello degli agenti morfodinamici, a partire dal Pleistocene medio.
    Description: Unpublished
    Description: Camerino (MC), Italia
    Description: 3.2. Tettonica attiva
    Description: open
    Keywords: scarpate di faglia ; Appennino Centrale ; faglie non attive ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Conference paper
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  • 4
    Publication Date: 2021-06-03
    Description: We have here analysed two normal faults of the central Apennines, one that affects the south-western slopes of theMontagna dei Fiori–Montagna di Campli relief, and the other that is located along the south-western border of the Leonessa intermontane depression. Through this analysis, we aim to better understand the reliability of geomorphic features, such as the fresh exposure of fault planes along bedrock scarps as certain evidence of active faulting in the Apennines, and to define the Quaternary kinematic history of these tectonic structures. The experience gathered from these two case studies suggests that the so-called ‘geomorphic signature’ of recent fault activity must be supported by wider geomorphologic and geologic investigations, such as the identification of displaced deposits and landforms not older than the Late Pleistocene, and/or an accurate definition of the slope instabilities. Our observations indicate that the fault planes studied are exposed exclusively because of the occurrence of non-tectonic processes, i.e. differential erosion and gravitational phenomena that have affected the portions of the slopes that are located in the hanging wall sectors. The geological evidence we have collected indicates that the Montagna dei Fiori–Montagna di Campli fault was probably not active during the whole of theuaternary, while the tectonic activity of the Leonessa fault ceased (or strongly reduced) at least during the Late Pleistocene, and probably since the Middle Pleistocene. The present lack of activity of these tectonic structures suggests that the fault activation for high magnitude earthquakes that produce surface faulting is improbable (i.e.Mw5.5–6.0, with reference to the Apennines, according toMichetti et al. [Michetti, A.M., Brunamonte, F., Serva, L.,Vittori, E. (1996), Trench investigations of the 1915 Fucino earthquake fault scarps (Abruzzo, Central Italy):geological evidence of large historical events, J. Geoph. Res.,101, 5921–5936; Michetti, A.M., Ferreli, L., Esposito, E.,Porfido, S., Blumetti, A.M., Vittori, E., Serva, L., Roberts, G.P. (2000)]). If, according to the current view, the shifting of the intra-Apennine extension towards the Adriatic sectors is still active, the Montagna dei Fiori–Montagna di Campli fault might be involved in active extensional deformation in the future.
    Description: Parzialmente finanziato dalla Convenzione INGV-Provincia di Teramo
    Description: Published
    Description: 252-268
    Description: 3.2. Tettonica attiva
    Description: JCR Journal
    Description: open
    Keywords: bedrock fault scarps ; Exhumation ; Non-tectonic processes ; seismic hazard ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 5
    Publication Date: 2021-06-03
    Description: Istituto Nazionale di Geofisica e Vulcanologia; CNR-IGAG, Università degli Studi di Roma TRE, DiMSAT- Università degli Studi di Cassino;
    Description: Published
    Description: 3.2. Tettonica attiva
    Description: open
    Keywords: Rilievi geologici ; sequenza sismica ; dell’Aquilano ; 6 aprile 2009 ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: report
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  • 6
    Publication Date: 2021-06-03
    Description: Field surveys performed by different research groups after the April 6, 2009 L’Aquila earthquake (Mw 6.1; CHIARALUCE et alii, 2011) identified the occurrence of surface faulting along the Paganica normal fault, the causative seismogenic source of the event. The different researchers provided patterns of surface rupture that slightly differ as for the northern and southern portion of the Paganica fault. We here integrated coseismic geodetic data – DInSAR and GPS – with geological observations in order to discriminate what, among the different surface rupture patterns, can be considered as evidence of primary surface faulting. Our results indicated that the Mt. Stabiata-Mt. Castellano faults, to the north, and the San Demetrio fault, to the south – along to which BONCIO et alii (2010) and GALLI et alii (2010) detected ground ruptures, respectively – probably activated solely as sympathetic (sensu SleMMONS & DEPOLO, 1986; DEPOLO, 1994) tectonic structures during the 2009 earthquake. These observations allowed to constrain the extension of the primary surface faulting from the Collebrincioni sector to the area of San Gregorio, thus representing the northern and the southern tips of the Paganica fault, respectively. This defines a total surface rupture length of 12-13 km. Our results highlight the effectiveness of entwining geological and geodetic data to discriminate primary surface faulting from secondary fault ruptures, particularly in cases of moderate magnitude earthquakes, i.e. when modest and rather subtle surface faulting can occur.
    Description: Part of this work has been carried out within the ASI-SIGRIS project, funded by the Italian Space Agency and Istituto Nazionale di Geofisica e Vulcanologia
    Description: Published
    Description: 389-402
    Description: 3.2. Tettonica attiva
    Description: JCR Journal
    Description: restricted
    Keywords: 2009 L’Aquila earthquake ; primary surface faulting ; sympathetic faulting ; Paganica fault ; central Apennines ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 7
    Publication Date: 2021-06-03
    Description: Il 6 Aprile 2009 un terremoto di Ml=5.8 (Mw=6.2) ha colpito L’Aquila e la media valle dell’Aterno in Abruzzo. In questo lavoro presentiamo in maniera sintetica i rilievi geologici effettuati in campagna dal gruppo di lavoro EmerGeo a seguito della sequenza sismica aquilana. Le attività di rilevamento condotte sono consistite principalmente nella verifica, definizione e caratterizzazione delle deformazioni cosismiche superficiali osservate lungo le strutture tettoniche note in letteratura; sono stati inoltre rilevati e riportati altri effetti cosismici locali (fratture su asfalto, frane e scivolamenti) non direttamente collegati alla presenza di strutture tettoniche. In totale sono stati rilevati oltre 300 punti di osservazione su una porzione di territorio estesa circa 900 km2. L’analisi preliminare dei rilievi effettuati indica che le rotture osservate lungo la faglia di Paganica, per la continuità e le caratteristiche, rappresentano l’espressione superficiale della faglia responsabile dell’evento del 6 aprile 2009, e che le rotture lungo le faglie di Bazzano e di Monticchio-Fossa possono rappresentare l’espressione in superficie di una struttura antitetica riattivata durante l’evento.
    Description: Published
    Description: 1-79
    Description: 3.2. Tettonica attiva
    Description: N/A or not JCR
    Description: open
    Keywords: coseismic ruptures ; Central Apennines ; April, 6 2009 earthquake ; Aterno valley ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 8
    Publication Date: 2021-06-03
    Description: The Calabrian arc represents an accretionary wedge located between the southern Apennines and the Maghrebian chain from which it is separated by two regional shear zones, i.e. the “Pollino Line” and “Taormina Line”, respectively. Since the Pliocene, extension affected the Calabrian chain, determining the formation of normal faults systems. Paleoseismological investigations allowed to associate some of the strongest historical earthquakes occurred in the Calabrian region (Mw up to 7.5) to some of these normal faults. We analyse the north-eastern sector of the arc which is characterised by a complex structural setting, being affected by the Pollino Line. Indeed, an ~E-W trending fault system (Rossano Fault) cut the area. This fault system displays a complex kinematic history, with the superimposition, during the Quaternary, of a normal kinematics over an older strike-slip one. About two km SE of the Mirto village, an excavation exposed marine deposits, attributed by means of paleontological analyses to an age not older than the Lower Pleistocene, overlain by alluvial-colluvial sediments. These deposits have been deformed by a compressive, NW-SE trending fault, verging landwards. The continental sediments affected by the fault have been radiocarbon dated between 10.018±43 BP and 8397±47 BP. This fault may represent the surficial expression of 1) a splay of a back-thrust, related to a main active thrust verging towards NE or 2) an active NW-SE transpressive fault or 3) a local compressive deforma-tion (i.e. a restraining bend) related to an active strike-slip fault. Works are still in progress in order to define the relationship of this compressive fault with the near Rossano fault, to which Galli et al (2006d) attributes a Late Holocene normal activity, considering that this sector has been struck in 1836 by a strong earthquake (Mw=6.2), the causative fault of which has been only tentatively related to the aforementioned Rossano fault.
    Description: Published
    Description: Crete, Greece
    Description: 3.2. Tettonica attiva
    Description: open
    Keywords: active inverse faulting ; Calabrian arc ; 1836 earthquake ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Abstract
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  • 9
    Publication Date: 2021-01-27
    Description: Nuovi dati archeosismologici dell'Appennino abruzzese (Italia centrale)
    Description: Published
    Description: Palazzo Sant'Agostino Salerno Italy
    Description: 3.10. Sismologia storica e archeosismologia
    Description: open
    Keywords: dati archeosismologici appennino abruzzese ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Oral presentation
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  • 10
    Publication Date: 2021-04-07
    Description: The Maiella Massif is the outermost carbonate anticline of the central Apennines, and it is considered as the epicentral area of two major historical earthquakes: the 1706 (Maw = 6.60) and 1933 (Maw = 5.7) events. Geological and geomorphological surveys have defined the geometry and kinematics of the Late Pleistocene-Holocene faults in the Maiella area. These faults show mainly normal kinematics and are organised as a complex dextral en-echelon fault system. The north-eastern fault (the Palena fault) trends N110°-120° and cuts the southern sector of the Maiella Massif transversally, displacing debris deposits that have been radiocarbon dated to 36,300 ±1,300 yr BP. The southwestern fault affects the western slope of Mt. Porrara and is composed of three NNW-SS-oriented en-echelon segments, placing the Mesozoic-Cenozoic carbonate bedrock in contact with Late Pleistocene continental deposits. These normal faults of the Maiella area represent the eastern-most extensional structures of the chain. Geomorphic evidence suggests that the onset of the fault activity probably occurred more recently than along other central Apennine Quaternary faults. This supports the traditional view of an outward (eastward) propagating extensional deformation during the Pliocene-Quaternary. Moreover, the evidence of re-use of pre-existing faults in the cases investigated indicates that this migration of the extensional domain generally occurs through the reactivation of faults inherited from previous tectonic phases, the geometry for which is consistent with the present (N)NE-(S)SW direction of extension. Moreover, the structural framework appears to have been conditioned by the NNE-SSW crustal Ortona-Roccamonfina Line, the present expression of which is seen in a complex dextral oblique fault zone of Late Pliocene age (i.e., the Sangro-Volturno thrust zone). Finally, the integration of our field structural data with the subsurface data available for the on-shore Periadriatic area have allowed the identification of a more external zone (Apulian foreland) that is deformed by lateral and extensional active structures, and an inner zone east of the Maiella Massif that is affected only by the most recent buried thrusts of the chain. This evidence suggests no kinematic interactions at the upper crustal level between the active oblique faulting of the Apulian foreland and the extensional structures of the Apennine chain.
    Description: Published
    Description: 57-73
    Description: 3.2. Tettonica attiva
    Description: N/A or not JCR
    Description: restricted
    Keywords: active fault ; extensional faulting ; Maiella massif ; Abruzzi region ; Central Italy ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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