1,720,975 research outputs found
Approcci multidisciplinari per la ricostruzione del paesaggio di una grande strada romana. La via Appia al Valico degli Aurunci
No full textIl volume illustra i risultati delle ricerche interdisciplinari (archeologiche, topografiche, geologiche, fisiche, chimiche e informatiche) condotte dalle unità di ricerca del DiLBEC e del CNR-ITABC coinvolte nell'ambito di un progetto di ricerca FIRB_2010 volto allo studio interdisciplinare di una grande strada romana, la Via Appia Claudia al valico dei Monti Aurunci tra Fondi e Itri, come modello di approccio metodologico multidisciplinare
Relationship between urban development and slope instability in the history of Rome: The case of the Palatine Hill between the Republican and the Imperial Ages (IV cen. BC—II cen. AD)
No full textStudio aerofotogrammetrico finalizzato della valle di Sant’Andrea (Fondi-Itri): caratterizzazione delle cave e analisi di tracce di attività estrattive
No full textIl contributo presenta una parte dei risultati delle ricerche archeologiche a carattere aerotopografico condotte dall’autrice lungo la via Appia, nel tratto tra Fondi e Itri, in provincia di Latina, lungo la Valle di Sant’Andre nell’ambito del progetto FIRB-Appia antica. Impostate sui principi metodologici e operativi propri della disciplina topografica e dei metodi cartografici, esse sono state finalizzate alla redazione di una mappatura di dettaglio degli spazi di cava, così da sottolineare le tracce dell’attività estrattiva antica. Indagini di fotointerpretazione e rilievi aerofotogrammetrici dei versanti corroborate da verifiche dirette sul terreno hanno definito, infatti, con particolare chiarezza la morfologia del sito e le modificazioni antropiche che lo hanno interessato, evidenziando in dettaglio le consistenti tracce riferibili a un’articolata attività di estrazione praticata in epoca romana in funzione della costruzione del tracciato della via Appia
Tra diffusione scientifica e divulgazione: nuove forme di narrazione website e story map per la via Appia al valico dei Monti Aurunci
No full textIl progetto FIRB “Il paesaggio di una grande strada romana. Modello di approccio multidisciplinare per una ricostruzione diacronica applicato alla via Appia al valico degli Aurunci”. Metodologia e attività svolte
No full textStudio morfometrico, quantitativo e microstratigrafico del sistema caveale nella valle di Sant’Andrea
No full textQuaternary, catastrophic rock avalanches in the Central Apennines (Italy): Relationships with inherited tectonic features, gravity-driven deformations and the geodynamic frame
No full textFive cases of Quaternary rock avalanches detached from carbonate mountain ridges in the Central Apennines are presented. Due to the large amount of rock masses involved, the width of accumulation and detachment areas and the damming in the host environment, the analysed rock avalanches can be considered as catastrophic rock slope failures, sporadic events in a mountain region characterized by low elevation but where mountain ridges can have a relative elevation of up to 1. km above the lowermost valley floors.The geological setting of tectonic structures that originated during the Apennine orogenesis influenced rock avalanche characteristics, determining the location and shape of detachment areas, the kind of rock mass involved, and the failure mechanisms. Two main types have been identified: i) forelimb rock-slide avalanches (FRSA) such as the Lettopalena and Mt. Arezzo rock avalanche which involved Cenozoic, heterogeneous sequences of carbonate ramp deposits detached from box-shaped source areas according to a rock sliding mechanism; and ii) backlimb slide-wedge rock avalanches (BSWRA) such as the Campo di Giove, Scanno and Celano rock avalanches that detached from sub-circular source areas carved on fault-bounded ridges and involving Meso-Cenozoic carbonate rocks with a combined sliding and rock wedge failure mechanism.The Campo di Giove, Lettopalena and Scanno rock avalanches originated from mountain ridges bounded by inactive fault zones and undergoing deep-seated gravitational slope deformations (DSGSDs) at the mountain scale. These three rock slope failures are considered as isolated events of long-lasting deformative processes featuring creep deformation. Gravity-driven deformations firstly generated as a response to stacking processes and synchronous normal faulting during the Neogene-Early Pleistocene Apennine tectonics. In particular, the Caramanico Fault System (CFS) and the Genzana Fault (GF), bordering the carbonate ridges from which the Campo di Giove and Scanno rock avalanches originated respectively, are here considered as backlimb collapse structures accommodating the passive uplift and deformation of positive tectonic structures. Gravity-driven deformations persisted during the post-Early Pleistocene dome-like uplift of the whole Apennine region. The regional uplift created the first-order (200. km) topographic wave-length of the belt, i.e. a periodic loading which has been balanced by the deflection of the Apennine crust and lithosphere. On the contrary, shorter topographic wave-lengths inherited from former thrusting and synchronous normal faulting determined local isostatic imbalances bearing a large potential for the mature development of DSGSDs on mountain ridges, favoured also by lateral unloading due to linear erosion and increase of topographic stress. Thus, a cause-effect relationship is hypothesized between the geodynamic evolution of the belt and mountain-sized gravity-driven deformations including large rock slope failures. © 2014 Elsevier B.V
Detection of axillary lymph node metastases in breast cancer with Tc-99m tetrofosmin scintigraphy
No full textNumerical modelling of Plio-Quaternary slope evolution based on geological constraints: A case study from the Caramanico valley (Central Apennines, Italy)
No full textEvidence of deep-seated gravitational slope deformations (DSGSD) and of large prehistoric landslides is fairly widespread within the Central Apennines (Italy). These gravityinduced processes accompanied the intense Plio-Quaternary uplift phases that affected the mountain chain. In this study a multidisciplinary approach has been adopted in order to better constrain the relationship between the tectonic evolution and the gravitational morphogenesis of a typical Apennine morphostructure, such as the Caramanico Valley. For this purpose a conceptual model of the morphostructural evolution of the area has been reconstructed, on the basis of geological constraints derived by the integration of detailed geological-structural and geomorphological surveys with available literature data. Based on this evolutionary model, a multistage numerical modelling using the finite difference method code FLAC 6.0 has been performed in order to: (i) evaluate the effect of the uplift-related morphological changes of the valley-slope system; and (ii) assess the role of the horizontal/vertical stress ratio variations due to geodynamic regime shifts. The results of the numerical model show a good fit with the actual geomorphical evidence and also confirm the presence during some evolutionary stages of stress-strain conditions compatible with those necessary to produce the massive rock slope failures testified by the presence of large palaeo-landslide deposits. © The Geological Society of London 2011
Influence of structural framework on mountain slope deformation in the Maiella anticline (Central Apennines, Italy)
No full textRelationships between tectonic framework and gravity-driven phenomena have been investigated in an area of the Central Apennines (Italy) characterised by high relief. The north-south, half-dome shaped Maiella anticline lies in the easternmost part of the Apennine fold-and-thrust belt. Its backlimb is bordered by the Caramanico Fault, a normal fault with a maximum downthrown of about 3.5 km that separates the western slope of the Maiella Massif from the Caramanico Valley. The southwestern Maiella area is affected by deep-seated gravitational slope deformation indicated by major double crest lines, down-hill and up-hill facing scarps, a pattern of crossing trenches, bulging at the base of slopes and the presence of different types of landslide and talus slope deposits.The onset and development of deep-seated gravitational slope deformations and the location of Quaternary, massive rockslope failures have been strongly influenced by the structural framework and tectonic pattern of the anticline. Deep-seated gravitational slope deformation at Mt. Macellaro-Mt. Amaro ridge has developed along the Maiella western, reverse slope in correspondence with the anticline axial culmination; it is bordered at the rear by a NNW-SSE oriented, dextral, strike-slip fault zone and has an E-W direction of rock mass deformation. Closer to the southern plunging area of the anticline, gravity-driven phenomena show instead a N-S and NW-SE direction, influenced by bedding attitude.3D topographic models illustrate the relationship between deep-seated gravitational slope deformation and massive rockslope failures. The Campo di Giove rock avalanche, a huge Quaternary failure event, was the result of an instantaneous collapse on a mountaine slope affected by a long-term gravity-driven deformation. © 2003 Elsevier B.V. All rights reserved
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