Search results for " Slope"

showing 3 items of 63 documents

Dieta del delfín de Risso (Grampus griseus) en el Mediterráneo occidental

2006

DIETA DEL DELFÍN DE RISSO (GRAMPUS GRISEUS) EN EL MEDITERRÁNEO OCCIDENTAL. – Se ha analizado el contenido gastrointestinal de quince ejemplares de Grampus griseus varados en el Mediterráneo occidental entre 40º25’N 00º32’W y 37º35’N 00º45’E durante el período 1987 a 2003. Los resultados indican una dieta teutófaga, basada principalmente en cefalópodos oceánicos destacando los octópodos pelágicos, especialmente Argonauta argo, como la presa más abundante (media = 41,28%; SD±34,32). Algunas especies pertenecientes a las familias mmastrephidae, Histioteuthidae y Onychoteuthidae son también componentes frecuentes de la misma. La distribución batimétrica de los cefalópodos indica que el área de …

lcsh:SH1-691CephalopodsCetáceoSH1-691CetaceanGrampus griseus ; Cetáceo ; Cefalópodos ; Dieta ; Talud ; MediterráneocephalopodsMediterranean:CIENCIAS DE LA VIDA [UNESCO]lcsh:Aquaculture. Fisheries. AnglingDietSlopeCefalópodoscetaceanAquaculture. Fisheries. AnglingGrampus griseus ; Cetacean ; Cephalopods ; Diet ; Slope ; MediterraneanUNESCO::CIENCIAS DE LA VIDAslopeDietaMediterráneodietGrampus griseusTaludScientia Marina
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First Evidence of Contourite Drifts in the North-Western Sicilian Active Continental Margin (Southern Tyrrhenian Sea)

2021

We present the results of an integrated geomorphological and seismo-stratigraphic study based on high resolution marine data acquired in the north-western Sicilian continental margin. We document for the first time five contourite drifts (marked as EM1a, EM2b, EM2, EM3a, and EM3b), located in the continental slope at depths between ca. 400 and 1500 m. EM1a,b have been interpreted as elongated mounded drifts. EM1a,b are ca. 3 km long, 1.3 km wide, and have a maximum thickness of 36 m in their center that thins northwards, while EM1b is smaller with a thickness up to 24 m. They are internally characterized by mounded seismic packages dominated by continuous and parallel reflectors. EM2 is loc…

seismic reflection dataSettore GEO/02 - Geologia Stratigrafica E SedimentologicaSettore GEO/03 - Geologia StrutturaleSettore GEO/04 - Geografia Fisica E GeomorfologiaNaval architecture. Shipbuilding. Marine engineeringVM1-989Ocean EngineeringGC1-1581OceanographyPaleontologyMediterranean seaContinental marginAggradationMediterranean Seacontinental slopemoatHoloceneWater Science and TechnologyCivil and Structural Engineeringgeographygeography.geographical_feature_categoryContinental shelfcontouritesContouriteSeafloor spreadinglanguage.human_languagelanguagebottom currentsSiciliancontourites; bottom currents; continental slope; moat; seismic reflection data; Mediterranean SeaGeology
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Submarine Slope Failures Along the Northern Sicilian Continental Margin (Southern Tyrrhenian Sea) and Possible Implications for Geo-Hazard

2013

Mass wasting and downslope movements are common processes that have contributed to shape the northern Sicilian continental margin (southern Tyrrhenian Sea) since the Late Quaternary. Nevertheless, processes controlling their evolution are still partially unknown and a variety of geologic factors can be responsible for their formation. In this work we present an overview of the main mass wasting features (submarine canyons, landslides, debris flows) observed and mapped in different sectors of the northern Sicilian margin. The margin is characterized by a narrow, steep continental shelf (1-2°) and a very irregular and steep (6-8°) upper slope. The main aims of this work are: (1) to outline th…

southern Tyrrhenian Seageographygeography.geographical_feature_categorySettore GEO/02 - Geologia Stratigrafica E SedimentologicaLandslideSubmarine canyonMass wastingsubmarine slope failurelanguage.human_languagePaleontologyTectonicsContinental marginlanguageSubmarine pipelineQuaternaryslope failure swath bathymetry geohazard southern Tyrrheniangeo-hazardSicilianGeomorphologyGeology
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