1,721,011 research outputs found
The Use of X-Ray analysis (Radiography and Computed Tomography) in the Study of Antarctic Marine Sediments.
No full textFirst results of geotechnical and sedimentological determinations on Joides Basin Cores in relation to the Pleistocene Grounding Line.
No full textGlacial and post - glacial features detection in the eastern Ross sea near - surface units
No full textPhysical Properties of the Post-Glacial Deposits in the Northern Joides Basin (Ross Sea)
No full textLate Quaternary deposits from the Ligurian continental shelf (NW Mediterranean): a response to problems of coastal erosion
No full textThe Ligurian continental shelf is a terrigenous platform characterized by variable extension and subsidence of the continental margin and thick accumulation of sediments originated by repeated sea-level oscillations. Its genesis and evolution occurred during the Plio-Quaternary, even if early erosive modelling in some sectors has been dated to the Late Miocene. The present morphology of the shelf is the result of transgressive–regressive Quaternary cycles. Using a high-resolution seismic grid of more than 1000 km, we have been able to define the seismostratigraphic characteristics of the Ligurian Sea shelf. On the basis of our studies, it has been possible to describe in detail the seismostratigraphy of the Late Quaternary and Holocene sediments that cover the shelf to various depths, in terms of sedimentary sources, for the purpose of distinguishing ‘relic’ deposits suitable for nourishing beaches undergoing erosion. From this detailed study of the evolution of the most superficial deposits, it is possible to distinguish between different sedimentary bodies deposited during a transgressive phase and located at a water depth ranging between 20 and 70 m; they are represented by relic sands cropping out at the sea bottom due to a relatively thin Holocene drape and could be explored for beach nourishment programmes
Geotechnical, sedimentological characteristics and seismic stratigraphy of Northern Joides Basin (Ross Sea - Antarctica): preliminary results.
No full textTransgressive submarine deposits for beach nourishment (Ligurian Sea, N.W. Mediterranean)
No full textThe use of submarine quarries is one of the most avant-garde techniques for obtaining material adapted to beach nourishment. During two projects (Interreg IIIb and IIIc - "Beachmed" 2002-04 and "Beachmed-e" 2005-08) financed by the European Union, the Ligurian Region and the University of Genoa, the Dipartimento per lo Studio del Territorio e delle sue Risorse (Dip.Te.Ris.) made several seismostratigraphic and sedimentological studies of transgressive submarine sedimentary bodies on the continental shelf, with high-resolution intruments, in search of relic sedimentary deposits related to various transgressive-regressive cycles that could be used for local beach nourishment programmes
Paleoenvironmental Characteristics of the Northern Joides Basin (Ross Sea): Sedimentological and Micropaleontological Findings (Diatoms and Forams)
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