Search results for "Neapolitan Yellow Tuff"

showing 3 items of 3 documents

Fragmentation during Rock Falls: Two Italian Case Studies of Hard and Soft Rocks

2008

In recent years, rock fall phenomena in Italy have received considerable attention for risk mitigation through in situ observations and experimental data. This paper reports the study conducted at Camaldoli Hill, in the urban area of Naples, and at Monte Pellegrino, Palermo, Italy. The rocks involved are volcanic Neapolitan yellow tuff (NYT) in the former area and dolomitic limestone in the latter. Both rocks, even though with different strength characteristics, have shown a significant tendency towards rock fragmentation during run out. This behavior was first investigated by comparing the volumes of removable blocks on the cliff faces (V 0) and fallen blocks on the slopes (V f). It was as…

geographyhard and soft rockgeography.geographical_feature_categorySettore ICAR/07 - GeotecnicaGeochemistryGeologyLandslideGeotechnical Engineering and Engineering GeologyRockfallVolcanofragmentationCliffGeotechnical engineeringNeapolitan yellow tuffRock fallGeologyIn situ full-scale testsCivil and Structural EngineeringRock Mechanics and Rock Engineering
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The Neapolitan Yellow Tuff caldera offshore the Campi Flegrei: Stratal architecture and kinematic reconstruction during the last 15 ky

2014

In this study we integrate high-resolution swath bathymetry, single channel reflection seismic data and gravity core data, to provide new insights into the shallow structure and latest Quaternary to Holocene evolution of the submerged sector of the Neapolitan Yellow Tuff (NYT) caldera (Campi Flegrei) in the Pozzuoli Bay. The new data allow for a reconstruction of the offshore geometry of the NYT caldera collapse-ring fault system, along with the style and timing of deformation of the inner caldera resurgence.Our interpretation shows that the NYT eruption (~. 15. ka BP) was associated with a caldera collapse bounded by an inward-dipping ring fault system. The ring fault system consists in a …

Campi Flegrei Neapolitan Yellow Tuff Collapse caldera Ring Fault System Caldera resurgence Late Quaternarygeographygeography.geographical_feature_categorySettore GEO/02 - Geologia Stratigrafica E SedimentologicaResurgent domeSettore GEO/03 - Geologia StrutturaleDomingRing fault systemGeologySubsidenceLate QuaternaryFault (geology)OceanographySeafloor spreadingGrabenGeochemistry and PetrologyNeapolitan Yellow TuffCalderaCollapse calderaCaldera resurgenceCampi FlegreiTephraSeismologyGeology
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Seismic expression of the shallow structure of The Neapolitan Yellow Tuff (NYT) caldera offshore the Campi Flegrei

2014

In this study we integrate high-resolution swath bathymetry, single-channel reflection seismic data and gravity core data, to provide new insights into the shallow structure and latest Quaternary to Holocene evolution of the submerged sector of the Neapolitan Yellow Tuff (NYT) caldera (Campi Flegrei) in the Pozzuoli Bay. The new data allow for a reconstruction of the offshore geometry of the NYT caldera collapse – ring fault system, along with the style and timing of deformation of the inner caldera resurgence. Our interpretation shows that the NYT eruption (~15 ka BP) was associated with a caldera collapse bounded by an inward-dipping ring fault system. The ring fault system consists in a …

Campi Flegrei Neapolitan Yellow Tuff collapse caldera ring fault system caldera resurgence Late QuaternarySettore GEO/02 - Geologia Stratigrafica E SedimentologicaSettore GEO/03 - Geologia StrutturaleCampi Flegrei Neapolitan Yellow Tuff Collapse caldera
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