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  • 04. Solid Earth::04.04. Geology::04.04.03. Geomorphology
  • 2010-2014  (70)
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Keywords
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Year
  • 1
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    Il bacino di Leonessa: ricostruzione dell’evoluzione geologica quaternaria attraverso un approccio multimetodologico (2010)
    Details
    Publication Date: 2021-06-03
    Description: Il bacino di Leonessa è una delle maggiori depressioni tettoniche intermontane dell’Appennino Centrale. A differenza delle altre depressioni, disposte in direzione appenninica con la faglia bordiera principale sul lato orientale, il bacino è orientato in senso WNW-ESE ed ha la faglia bordiera principale sul suo margine sud-occidentale. Questo studio ha permesso di ricostruire l’evoluzione quaternaria del bacino attraverso un approccio multimetodologico basato sull’integrazione dei dati provenienti dal rilevamento geologico e geomorfologico a scala di dettaglio (1:10.000), supportato dall’interpretazione di fotografie aeree, da analisi paleontologico-stratigrafiche, paleomagnetiche, palinologiche e mineralogico-petrografiche. I sedimenti affioranti all’interno della depressione sono stati distinti in sintemi. Quello stratigraficamente più basso è il Sintema di Villa Pulcini – Colle Montano, costituito da un alternanza di argille, argille torbose, marne e sabbie argillose di ambiente deposizionale da lacustre a piana alluvionale a canali intrecciati (braided plain), attribuibile alla parte alta del Pleistocene inferiore. Stratigraficamente superiore al Sintema di Villa Pulcini – Colle Montano, il Sintema di Leonessa è costituito da depositi di conoide alluvionale nel settore occidentale del bacino e da depositi lacustri nel settore orientale, ambedue contenenti, nella parte alta, intercalazioni di vulcaniti risedimentate. Il ritrovamento di un molare di Mammuthus (mammuthus) cfr.M. (M.) trogontherii (Pohlig) all’interno di depositi alluvionali e i risultati delle analisi paleomagnetiche e palinlogiche consentono di riferire al Pleistocene medio il sintema.I due sintemi precedenti sono coperti a tratti da sabbie e sabbie argillose rossastre (Sintema di Terzone), con spessore che raramente supera i 5 metri, ricche di elementi vulcanici rimaneggiati. I sintemi stratigraficamente più alti del bacino sono costituiti da tre ordini di terrazzi fluviali e da due ordini di conoide alluvionale denominati Sintema di Cerreto - Monte Tilia1, Sintema di Fosso della Ripa e Sintema di Villa Falcucci – Monte Tilia2. Questi sono probabilmente da riferirsi al Pleistocene superiore – Olocene. La definizione degli eventi erosivo-deposizionali che hanno contraddistinto l’evoluzione del paesaggio nel bacino di Leonessa costituisce un passo ulteriore verso un più preciso inquadramento temporale dell’attività tettonica distensiva, del sollevamento regionale e dei cambiamenti climatici che hanno portato all’attuale assetto geomorfologico dell’Appennino Centrale.
    Description: Published
    Description: Roma
    Description: 3.2. Tettonica attiva
    Description: open
    Keywords: Bacino di Leonessa ; Evoluzione quaternaria ; Appennino Centrale ; 04. Solid Earth::04.04. Geology::04.04.03. Geomorphology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Poster session
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  • 2
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    GIS Methodology to Assess Landslide Susceptibility: Application to a River Catchment of Central Italy (2013)
    Kingston University
    Details
    Publication Date: 2021-06-03
    Description: This paper illustrates a geographic information system (GIS) supported methodology for the assessment of landslide susceptibility. The methodology involves four operational steps: survey, site analysis, macro- area analysis and susceptibility analysis . The Survey includes the production (or acquisition) of a large-scale litho-technical map, a large-scale geomorphological map, a detailed inventory of past and present land- slide events, and a high resolution DTM (Digital Terrain Model. Site analysis leads to the definition of discriminating parameters (commonly, lithological and morphometric conditions necessary but not suffi- cient to trigger a landslide of a given type) and predisposing factors (conditions that worsen slope stability but are not sufficient to trigger a landslide of a given type in the absence of discriminating parameters ). The different predisposing factors are subdivided into classes, whose intervals are established by descriptive, statistical analysis of landslide inventory data. A numerical index, based on the frequency of landslide occurrence, quantifies the contribution of each class to slope instability. Macro-area analysis includes the generation of Litho-Morphometric Units (LMU) by overlaying discrimina- ting parameters , manual drawing of LMU envelopes ( macro-areas ), generation of predisposing factor maps from the spatial distribution of predisposing factors , and heuristic weighting of predisposing factor indices. Susceptibility analysis includes the generation of Homogeneous Territorial Units (HTU) by overlaying macro- areas and predisposing factor maps , and the application of a susceptibility function to the different HTU. The resulting values are normalized before the generation of the landslide susceptibility maps . The methodo- logy has been applied to the Fiumicino River catchment, located in the western side of Latium Apennine (Central Italy) between 200 and 1300 m a.s.l. and developed on Late Miocene calcarenites, sandstones with clay intercalations, and marls. The resulting landslide susceptibility maps will be employed in envi- ronmental management. They also represent the preliminary step for the assessment of landslide hazard and risk
    Description: Published
    Description: 87-93
    Description: 5.5. TTC - Sistema Informativo Territoriale
    Description: JCR Journal
    Description: restricted
    Keywords: Landslide; Geomorphology ; GIS Methodology ; 04. Solid Earth::04.04. Geology::04.04.03. Geomorphology ; 05. General::05.01. Computational geophysics::05.01.05. Algorithms and implementation ; 05. General::05.06. Methods::05.06.99. General or miscellaneous ; 05. General::05.08. Risk::05.08.02. Hydrogeological risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 3
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    Intersection of exogenous, endogenous and anthropogenic factors in the Holocene landscape: A study of the Naples coastline during the last 6000 years (2013)
    Elsevier Science Limited
    Details
    Publication Date: 2021-07-14
    Description: New data on the ancient landscape of Naples (southern Italy) during the middle and late Holocene from geo-archaeological excavations associated with public transport works were used to reconstruct the hill and coastal environment to the west of the ancient Graeco-Roman polis, where remains of human settlements date to the late Neolithic. The rich stratigraphic and archaeological records that emerged from the digs and from previous boreholes were measured and analysed by combining sedimentary facies analysis, tephrostratigraphy and archaeological data. Between the 5th and 4th millennia BP, a rocky profile with a wave-cut platform cutting across pyroclastites emplaced from the surrounding volcanoes was predominant in the coastal landscape. During the 3rd millennium BP, this rocky coast was progressively replaced by a sandy littoral environment primarily due to marine deposition, with a coastline located some hundred meters inland with respect to the modern one. The sedimentary record of the Greek and Roman periods indicates short-term fluctuations of the coastline, leading to the establishment of a backshore environment towards the end of the 6th century AD, when prograding river mouths and lobes of debris flows contributed to the advancing trend of the shoreline. The frequent archaeological remains from these periods indicate a stable settled area since Roman times. The shoreline was still subject to short-lived fluctuations between the 12th and 16th centuries, and attained its present position during the modern era with man-made reshaping of its profile. The construction of Relative Sea Level curves for two coastal sites reveals that the persistence of the foreshore environment in the Naples coastal strip during the 5th and 4th millennia BP was controlled by the counterbalancing effect of either the concurrent eustatic sea level rise or subsidence. On the other hand, the morpho-stratigraphic record for the last two millennia shows a significant correlation between sedimentation rate and settlement history, accounting for the dominant role of the anthropogenic forcing-factor in late Holocene landscape history. In particular, land mismanagement during Late Antiquity seems to have triggered a slope disequilibrium phase, exacerbating soil erosion and increasing the sediment accumulation rate in both foothill and coastal areas. Nonetheless, the environmental changes of the Chiaia coast during the last 2000 years clearly show volcanicetectonic perturbations influencing coastline development up to the modern era.
    Description: Published
    Description: 107-119
    Description: 3.5. Geologia e storia dei vulcani ed evoluzione dei magmi
    Description: 3.10. Storia ed archeologia applicate alle Scienze della Terra
    Description: JCR Journal
    Description: reserved
    Keywords: study ; Naples coastline ; the last 6000 years ; 04. Solid Earth::04.04. Geology::04.04.03. Geomorphology ; 04. Solid Earth::04.04. Geology::04.04.10. Stratigraphy ; 04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 4
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    The growth and erosion of cinder cones in Guatemala and El Salvador: Models and statistics (2011)
    Elsevier B.V.
    Details
    Publication Date: 2020-11-18
    Description: Morphologic data for 147 cinder cones in southern Guatemala andwestern El Salvador are comparedwith data from the San Francisco volcanic field, Arizona (USA), Cima volcanic field, California (USA), Michoácan–Guanajuato volcanic field, Mexico, and the Lamongan volcanic field, East Java. The Guatemala cones have an average height of 110+/-50 m, an average basal diameter of 660+/-230 m and an average top diameter of 180+/-150 m. The generalmorphology of these cones can be described by their average cone angle of slope (24+/-7), average heightto- radius ratio (0.33+/-0.09) and their flatness (0.24+/-0.18). Although the mean values for the Guatemalan cones are similar to those for other volcanic fields (e.g., San Francisco volcanic field, Arizona; Cima volcanic field, California; Michoácan–Guanajuato volcanic field, Mexico; and Lamongan volcanic field, East Java), the range of morphologies encompasses almost all of those observed worldwide for cinder cones. Three new 40Ar/39Ar age dates are combined with 19 previously published dates for cones in Guatemala and El Salvador. There is no indication that the morphologies of these cones have changed over the last 500–1000 ka. Furthermore, a re-analysis of published data for other volcanic fields suggests that only in the Cima volcanic field (of those studied) is there clear evidence of degradation with age. Preliminary results of a numerical model of cinder cone growth are used to show that the range of morphologies observed in the Guatemalan cinder cones could all be primary, that is, due to processes occurring at the time of eruption.
    Description: Support for Walker was provided by NSF MARGINS grant OCE- 0405666.
    Description: Published
    Description: 39-52
    Description: 1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani
    Description: 3.5. Geologia e storia dei vulcani ed evoluzione dei magmi
    Description: 3.6. Fisica del vulcanismo
    Description: JCR Journal
    Description: open
    Keywords: cinder cones ; morphology ; age dating ; 04. Solid Earth::04.01. Earth Interior::04.01.99. General or miscellaneous ; 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous ; 04. Solid Earth::04.04. Geology::04.04.03. Geomorphology ; 04. Solid Earth::04.04. Geology::04.04.09. Structural geology ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous ; 05. General::05.02. Data dissemination::05.02.03. Volcanic eruptions
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 5
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    The Kamil Crater in Egypt (2010)
    American Association for the Advancement of Science
    Details
    Publication Date: 2020-12-21
    Description: BREVIA
    Description: We report on the discovery in southern Egypt of an impact crater 45 m in diameter with a pristine rayed structure. Such pristine structures have been previously observed only on atmosphereless rocky or icy planetary bodies in the Solar System. This feature and the association with an iron meteorite impactor and shock metamorphism provides a unique picture of small-scale hypervelocity impacts on the Earth's crust. Contrary to current geophysical models, ground data indicate that iron meteorites with masses of the order of tens of tons can penetrate the atmosphere without significant fragmentation.
    Description: Published
    Description: 804
    Description: 1.8. Osservazioni di geofisica ambientale
    Description: 3.8. Geofisica per l'ambiente
    Description: JCR Journal
    Description: open
    Keywords: Impact crater ; Egypt ; geophysical exploration ; ataxite ; 04. Solid Earth::04.04. Geology::04.04.03. Geomorphology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 6
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    Kamil Crater (Egypt): Ground truth for small-scale meteorite impacts on Earth (2011)
    Geological Society of America
    Details
    Publication Date: 2020-12-21
    Description: Small impact craters (〈300 m in diameter) are rare on Earth and mostly deeply eroded, so that knowledge of their formation mechanism and the hazard small impactors constitute to human populations is largely based on physical models. We report on the geophysical investigation of the Kamil Crater we recently discovered in southern Egypt. The Kamil Crater is a 〈5 k.y. old impact crater 45 m in diameter, with a pristine ejecta ray structure. Such well-preserved structures have been previously observed only on extraterrestrial rocky or icy planetary bodies. This crater feature, and the association with an iron meteorite impactor and shock metamorphism, provides a unique impression of aspects of small-scale hypervelocity impacts on the Earth’s crust. Contrary to current models, ground data indicate that iron meteorites with masses of tens of tons may be able to penetrate the atmosphere without substantial fragmentation.
    Description: Published
    Description: 179-182
    Description: 1.8. Osservazioni di geofisica ambientale
    Description: 3.8. Geofisica per l'ambiente
    Description: JCR Journal
    Description: restricted
    Keywords: impact cratering ; iron meteorites ; shock metamorphism ; Kamil Crater ; Gebel Kamil ; meteorite ; Egypt ; 04. Solid Earth::04.04. Geology::04.04.03. Geomorphology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 7
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    Supplementary data (2014)
    Details
    Publication Date: 2021-06-04
    Description: NATO, ISTerre, USB, IRD
    Description: Unpublished
    Description: 3.2. Tettonica attiva
    Description: open
    Keywords: River terraces ; Albania ; Active faults ; Active tectonics ; Vertical slip rates ; 04. Solid Earth::04.04. Geology::04.04.03. Geomorphology ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: web product
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  • 8
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    EVOLUZIONE TARDO-QUATERNARIA DEL VERSANTE OCCIDENTALE DEL MONTE MORRONE E DEL BACINO DI SULMONA (ITALIA CENRALE) (2010)
    Details
    Publication Date: 2017-04-04
    Description: Le ricerche in corso sono finalizzate alla caratterizzazione dell’evoluzione geologica-geomorfologica tardo-quaternaria dell’area del bacino di Sulmona, nonché all’evoluzione geomorfologica del versante occidentale del Monte Morrone, rilievo che borda ad est la depressione intermontana. Tali analisi sono altresì finalizzate alla determinazione di nuovi vincoli stratigrafici e cronologici utili per meglio caratterizzare l’attività tardo-pleistocenica-olocenica del sistema attivo di faglie normali (sistema di faglie normali del M. Morrone) che interessa tale versante montuoso (e.g. Miccadei el al., 1998; 2002). Le analisi morfo-stratigrafiche condotte nel bacino di Sulmona hanno permesso di individuare diversi cicli di depositi di conoide alluvionale che sono stati messi in relazione ad eventi di deposizione lacustre avvenuti dal Pleistocene Medio al tardo Olocene (Giaccio et al., 2009). Tali analisi hanno dunque permesso di definire dei vincoli cronologici accurati per la deposizione delle unità alluvionali. Lungo il versante occidentale del Monte Morrone sono state riconosciute in passato alcune morfologie – quali trincee, depressioni allungate, scarpate in contropendenza – indicanti l’occorrenza di movimenti gravitativi profondi (tipo sackung) (Ciccacci et al., 1999). Sono state condotte osservazioni geomorfologico-strutturali atte a mappare tutti gli elementi morfologici legati ai movimenti gravitativi profondi. Sono stati altresì realizzati 4 scavi geognostici all’interno di due trincee gravitative per cercare di ottenere elementi utili alla caratterizzazione dell’evoluzione recente di questi fenomeni gravitativi. Datazioni radiometriche effettuate su campioni di materiale organico prelevato dai paleosuoli e su frammenti di carbone contenuti nelle unità colluviali, indicano che i movimenti lungo le scarpate delle trincee è proseguito anche nel corso del tardo Olocene.
    Description: Published
    Description: Modena
    Description: 3.2. Tettonica attiva
    Description: open
    Keywords: Evoluzione strutturale ; Monte Morrone ; Sulmona ; Appennino Centrale ; 04. Solid Earth::04.04. Geology::04.04.03. Geomorphology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Oral presentation
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  • 9
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    Towards a seismogenic source model of the Dinarides (2010)
    Details
    Publication Date: 2017-04-04
    Description: Geology-based seismogenic source models are becoming the fundamental input for seismic hazard assessment at the scale of an entire country. In this work, we will illustrate in simple steps the complex process that leads from basic data to a fully-fledged seismogenic source model of the Dinaride thrust belt, running along coastal Croatia, Montenegro and part of Albania. We started from a layer of basic geological and structural data and explored a wide range of indicators of recent tectonic activity, such as drainage anomalies/diversions and displaced or warped geological markers. We then analyzed the interplay of these indicators with known or prospective tectonic structures. To the picture thus obtained, we added a layer with a revised historical seismic catalog and selected a few earthquakes for which we re-estimate epicenter and magnitude. At the end of our analyses we combined all these data in a structured GIS database. With these data at hand, we also compared the longer-term indicators with present-day stress/strain data such as GPS velocities and earthquake focal solutions. Following the approach already developed for the construction of the Database of Individual Seismogenic Sources for Italy, we developed a seismogenic source model for the Dinarides in which the better constrained seismogenic faults have been mapped and parameterized and made ready for use in seismic hazard practice. We believe that our experience in the Dinarides will become useful in unifying and formalizing the process of constructing seismic source models in other countries.
    Description: Published
    Description: Rimini
    Description: 3.2. Tettonica attiva
    Description: 4.2. TTC - Modelli per la stima della pericolosità sismica a scala nazionale
    Description: open
    Keywords: seismogenic source model ; active fault ; Dinarides ; seismic hazard ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology ; 04. Solid Earth::04.04. Geology::04.04.03. Geomorphology ; 04. Solid Earth::04.04. Geology::04.04.09. Structural geology ; 04. Solid Earth::04.06. Seismology::04.06.01. Earthquake faults: properties and evolution ; 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Poster session
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  • 10
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    Influence of inherited geometry and fault history on the seismogenic activity and potential of strike-slip fault systems in NW Slovenia: the case study of the Ravne Fault (2010)
    Società Geologica Italiana
    Details
    Publication Date: 2017-04-04
    Description: La zona di faglia Ravne è situata in un area di interazione fra due sistemi regionali di faglie con differente cinematica, entrambi collegati alla convergenza fra Adria e Eurasia: le faglie dinariche orientate NW-SE e le faglie del Sud-alpino orientate E-W. L’analisi di dati di geologia strutturale e di due sequenze sismiche recenti che hanno colpito l’area, ci permette di proporre un modello sismotettonico per la faglia di Ravne, che è stata interessata da diverse fasi tettoniche. La geometria originale e la storia evolutiva della zona di faglia svolgono un ruolo cruciale nella distribuzione recente dell’attività sismica e del potenziale sismogenetico dell’intera struttura. Infatti, la configurazione attuale della faglia Ravne, caratterizzata da fagliazione trascorrente su piani ad alto angolo a profondità crostali, è il risultato dell’iniziale geometria di un thrust orientato NW-SE e avente immersione verso NE, e della sua interazione con i piani di thrust diretti essenzialmente E-W. Partendo dai dati raccolti e tenendo in considerazione sia il quadro geodinamico che le relazioni empiriche, proponiamo tre possibili scenari con relativi potenziali sismogenetici per la possibile futura attività della faglia di Ravne.
    Description: Published
    Description: Udine
    Description: 3.2. Tettonica attiva
    Description: open
    Keywords: Ravne Fault ; Western Slovenia ; fault growth ; linkage processes ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology ; 04. Solid Earth::04.04. Geology::04.04.03. Geomorphology ; 04. Solid Earth::04.04. Geology::04.04.09. Structural geology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Extended abstract
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