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Amato, Vincenzo
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Amato, Vincenzo
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- PublicationRestrictedStratigrafia ed assetto geometrico dell’Unità del Sannio nel settore settentrionale dei monti del Matese(2010-12-15)
; ; ; ; ; ; ; ; ; ; ; ;CESARANO, M.; Università degli Studi del Molise, Dipartimento STAT ;PAPPONE, G.; Università degli Studi di Scienze per l’Ambiente ;AMATO, V.; Università degli Studi del Molise, Dipartimento STAT ;AUCELLI, P.; Università degli Studi di Napoli “Parthenope”, Dipartimento di Scienze per l’Ambiente ;BARANELLO, S.; Servizio Geologico Regione Molise ;CASCELLA, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;CASCIELLO, E.; Institut de Ciencies de la Terra “Jaume Almera”, CSIC, Barcelona, Spain ;FERRARINI, F.; Università degli Studi del Molise, Dipartimento STAT ;LIRER, F.; Istituto per l’Ambiente Marino Costiero (IAMC) ;MONACO, R.; Servizio Geologico Regione Molise ;ROSSKOPF, C.; Università degli Studi del Molise, Dipartimento STAT; ; ; ; ; ; ; ; ; ; New stratigraphic and biostratigraphic data arising from the realization of the Sheet No. 405 "Campobasso" of the new Geological map of Italy (1:50.000 scale - CARG Project) allowed, for the first time in this area, to stratigraphically and cartographically define all the ranges composing the basinal Sannio Unit Auct.. Structural analysis and the chronostratigraphic redefinition of siliciclastic deposits covering the Sannio Unit and the carbonate platform successions of the Matese- Frosolone Units, indicate two main evolutionary stages in the Miocene- Pliocene structuring of this portion of the Southern Apennines. In the first stage, starting before Serravallian times, E-verging contraction affected exclusively the basinal units together with their siliciclastic cover. During the second stage, beginning after early Messinian times, NE-verging compression involved both the basinal Sannio Unit and the Matese-Frosolone Units.339 72 - PublicationOpen AccessMagma reservoir growth and ground deformation preceding the 79 CE Plinian eruption of Vesuvius(2023)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; The 79 CE eruption of Vesuvius is the first documented Plinian eruption, also famous for the archaeological ruins of Pompeii and Herculaneum. Although much is known regarding the eruption dynamics and magma reservoir, little is known about the reservoir shape and growth, and related ground deformation. Numerical modelling by Finite Element Method was carried out, aimed at simulating the reservoir growth and ground deformation with respect to the reservoir shape (prolate, spherical, oblate) and magma overpressure. The modelling was tuned with volcanological, petrological and paleoenvironmental ground deformation con straints. Results indicate that the highest magma overpressure is achieved considering a prolate reservoir, making it as the most likely shape that led to eruption. Similar deformations but lower overpressures are obtained considering spherical and oblate reservoirs. These results demonstrate that ground deformation may not be indicative of eruption probability, style/size, and this has direct implications on surveillance at active explosive volcanoes504 14 - PublicationRestrictedLate Quaternary benthic foraminiferal and ostracod response to palaeoenvironmental changes in a Mediterranean coastal area, Port of Salerno, Tyrrhenian Sea(2020)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; The Late Quaternary benthic foraminiferal and ostracod assemblages from two continuous cores drilled in the Port of Salerno were studied to define their relationship with geochemical characteristics of the sediments and with the palaeoenvironmental evolution. The succession, ranging from Late Pleistocene to the 20th century, recorded the transition from a marine coastal environment under natural conditions to a depositional context affected by anthropogenic influence. In the lower part of the sequence, ecological and sedimentary changes were linked to sea-level changes due to Late Quaternary climatic phases, as well as to volcanic events such as the Campanian Ignimbrite eruption, represented by levels with high metal (Fe, Mn, Pb, Zn) concentrations, possibly leading to low pH phases. Later human activities, such as the construction of harbour facilities in the 18th century and the industrial development in the 19th century, influenced environmental variations, as shown in the upper part of the succession. High levels of heavy metal concentrations (Co, Cu, Fe, Pb, V) recorded in layers deposited in the 1800s suggest the presence of a pollution event which could be linked to manufacturing activities and might have occurred during the first part of the 19th century. Calcareous meiofaunal assemblages showed high diversity values, probably due to the occurrence of "rare short lived" species in an unstable environment. Assemblages were dominated by the foraminiferal species Ammonia aberdoveyensis and Haynesina depressula, and by the ostracods Pontocythere turbida and Semicytherura sulcata, which are considered as possibly stress-tolerant species.67 2 - PublicationRestrictedFirst assessment of the local seismic amplification susceptibility of the Isernia Province (Molise Region, Southern Italy) by the integration of geological and geomorphological studies related to the first level seismic microzonation project(2018-02-09)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; This paper presents the results of the geological and geomorphological investigation carried out during the first level seismic microzonation project in the Isernia Province territory. The study area falls in one of the most seismically active areas of the Apennine chain and it has been struck, in historical times, by destructive earthquakes that caused several causalities and diffuse damages to the buildings. The analysis points out the occurrence of geological features that can determine possible site amplification phenomena related to areas with extensive outcrops of thick continental deposits or to unstable areas (both covering about 48% of the investigated areas). The latter are sometimes combined with geomorphological features such as scarps, isolated peaks, and ridges that are also responsible for possible site amplification. In addition, a susceptibility to local seismic amplification index has been introduced which highlights that more than 64% of the investigated area, along with a significant percentage of buildings, fall within the highest categories of susceptibility to local seismic amplification.161 7 - PublicationRestrictedMultidisciplinary approach for fault detection: Integration of PS-InSAR, geomorphological, stratigraphic and structural data in the Venafro intermontane basin (Central-Southern Apennines, Italy)(2017-01-24)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; A multidisciplinary methodology, integrating stratigraphic, geomorphological and structural data, combined with GIS-aided analysis and PS-InSAR interferometric data,was applied to characterize the relationships between ground deformations and the stratigraphic and themorphostructural setting of the Venafro intermontane basin. This basin is a morphostructural depression related to NW-SE and NE-SW oriented high angle normal faults bordering and crossing it. In particular, a well-known active fault crossing the plain is the Aquae Juliae Fault, whose recent activity is evidenced by archeoseismological data. The approach applied here reveals newevidence of possible faulting, acting during the Lower to Upper Pleistocene, which has driven the morphotectonic and the environmental evolution of the basin. In particular, the tectonic setting emerging from this study highlights the influence of theNW-SE oriented extensional phase during the late Lower Pleistocene – earlyMiddle Pleistocene, in the generation of NE-SWtrending, SE dipping, high-angle faults andNW-SE trending, high-angle transtensive faults. This phase has been followed by a NE-SW extensional one, responsible for the formation of NW-SE trending, both NWand SE dipping, high-angle normal faults, and the reactivation of the oldest NE-SWoriented structures. These NW-SE trending normal faults include the Aquae Juliae Fault and a new one, unknown until now, crossing the plain between the Venafro village and the Colle Cupone Mt. (hereinafter named the Venafro-Colle Cupone Fault, VCCF). This fault has controlled deposition of the youngest sedimentary units (late Middle Pleistocene to late Upper Pleistocene) suggesting its recent activity and it is well constrained by PSInSAR data, as testified by the increase of the subsidence rate in the hanging wall block.521 9 - PublicationOpen AccessLa valutazione delle deformazioni del suolo nella piana di Venafro mediante l’elaborazione di dati PSInSar, morfo-strutturali e stratigrafici(Federazione ASITA, 2014-10)
; ; ; ; ; ; ; ; ;Amato, V.; Dip. di Bioscienze e Territorio, Università degli Studi del Molise ;Aucielli, P. C. P.; Dip. di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope ;Bellucci Sessa, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Cesarano, M.; Dip. di Bioscienze e Territorio, Università degli Studi del Molise ;Incontri, P.; Dip. di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope ;Pappone, G.; Dip. di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope ;Valente, E.; Dip. di Bioscienze e Territorio, Università degli Studi del Molise ;Vilardo, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia; ; ; ; ; ; ; ; Federazione ASITAI bacini intramontani dell’Appennino centro-meridionale sono soggetti, sin dalla loro genesi (Pleistocene inferiore), a deformazioni del suolo, la cui non uniforme distribuzione e la cui diversa entità sono una risposta all’attività di faglie, intersecanti e bordanti le pianure, e al costipamento differenziale dei depositi costituenti le successioni sedimentarie di riempimento. Al fine di valutare la distribuzione spaziale dei movimenti verticali e le relative velocità, e di interpretarne correttamente le cause, è stato affrontato uno studio multidisciplinare che ha previsto l’elaborazione di dati radar con tecnica PSInSAR, lo studio geomorfologico e strutturale e l’analisi stratigrafica di dati di sottosuolo della piana di Venafro, ampia depressione tettonica interposta tra i M. delle Mainarde-M. di Venafro ed i M. del Matese e drenata dal F. Volturno. L’interpolazione dei dati PS, effettuata in ambiente GIS, riferita a due intervalli di tempo, 1995–2000 (ERS) e 2003–2008 (ENVISAT) ha permesso di valutare i ‘cumulative vertical displacements’ (mm), i ‘displacement rates’ (mm/a) e il ‘gradient field’ dei ‘displacement rates’, consentendo di individuare alcuni settori del bacino che si distinguono per tassi di subsidenza superiori alla media e per comportamento deformativo costante nel tempo. Risulta evidente una correlazione tra la distribuzione spaziale del quadro deformativo di natura interferometrica, lo sviluppo geometrico delle faglie che interessano la piana e la natura litologica del riempimento sedimentario. I valori maggiori di subsidenza si registrano nel settore centrale della piana, probabilmente indotti da un maggiore spessore dei depositi di riempimento, nonché dalla presenza di depositi argillo-sabbiosi poco addensati e più suscettibili al costipamento, così come dalla presenza di alcuni lineamenti tettonici orientati NE-SW e NW-SE. In particolare, i valori maggiori si registrano a valle di una scarpata morfologica, orientata NW-SE, coincidente anche con un importante ‘knick point’ del F. Volturno, oltre che a valle di una faglia, orientata NW-SE (Faglia dell’’Aquae Juliae’), attiva in tempi storici per aver dislocato l’acquedotto romano.375 191