Paleochannel and beach-bar palimpsest topography as initial substrate for coralligenous buildups offshore Venice, Italy

We provide a model for the genesis of Holocene coralligenous buildups occurring in the northwestern Adriatic Sea offshore Venice at 17-24 m depth. High-resolution geophysical surveys and underwater SCUBA diving reconnaissance revealed meandering shaped morphologies underneath bio-concretionned rocky...

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Detalles Bibliográficos
Autores principales: Tosi, Luigi, Zecchin, Massimo, Franchi, Fulvio, Bergamasco, Andrea, Da Lio, Cristina, Baradello, Luca, Mazzoli, Claudio, Montagna, Paolo, Taviani, Marco, Tagliapietra, Davide, Carol, Eleonora Silvina, Franceschini, Gianluca, Giovanardi, Otello, Donnici, Sandra
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87294
Aporte de:
id I19-R120-10915-87294
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Geología
Subsidence
Lagoon
Land subsidence
spellingShingle Ciencias Naturales
Geología
Subsidence
Lagoon
Land subsidence
Tosi, Luigi
Zecchin, Massimo
Franchi, Fulvio
Bergamasco, Andrea
Da Lio, Cristina
Baradello, Luca
Mazzoli, Claudio
Montagna, Paolo
Taviani, Marco
Tagliapietra, Davide
Carol, Eleonora Silvina
Franceschini, Gianluca
Giovanardi, Otello
Donnici, Sandra
Paleochannel and beach-bar palimpsest topography as initial substrate for coralligenous buildups offshore Venice, Italy
topic_facet Ciencias Naturales
Geología
Subsidence
Lagoon
Land subsidence
description We provide a model for the genesis of Holocene coralligenous buildups occurring in the northwestern Adriatic Sea offshore Venice at 17-24 m depth. High-resolution geophysical surveys and underwater SCUBA diving reconnaissance revealed meandering shaped morphologies underneath bio-concretionned rocky buildups. These morphologies are inferred to have been inherited from Pleistocene fluvial systems reactivated as tidal channels during the post-Last Glacial Maximum transgression, when the study area was a lagoon protected by a sandy barrier. The lithification of the sandy fossil channel-levee systems is estimated to have occurred at ca. 7 cal. ka BP, likely due to the interaction between marine and less saline fluids related to onshore freshwater discharge at sea through a sealed water-table. The carbonate-cemented sandy layers served as nucleus for subsequent coralligenous buildups growth.
format Articulo
Articulo
author Tosi, Luigi
Zecchin, Massimo
Franchi, Fulvio
Bergamasco, Andrea
Da Lio, Cristina
Baradello, Luca
Mazzoli, Claudio
Montagna, Paolo
Taviani, Marco
Tagliapietra, Davide
Carol, Eleonora Silvina
Franceschini, Gianluca
Giovanardi, Otello
Donnici, Sandra
author_facet Tosi, Luigi
Zecchin, Massimo
Franchi, Fulvio
Bergamasco, Andrea
Da Lio, Cristina
Baradello, Luca
Mazzoli, Claudio
Montagna, Paolo
Taviani, Marco
Tagliapietra, Davide
Carol, Eleonora Silvina
Franceschini, Gianluca
Giovanardi, Otello
Donnici, Sandra
author_sort Tosi, Luigi
title Paleochannel and beach-bar palimpsest topography as initial substrate for coralligenous buildups offshore Venice, Italy
title_short Paleochannel and beach-bar palimpsest topography as initial substrate for coralligenous buildups offshore Venice, Italy
title_full Paleochannel and beach-bar palimpsest topography as initial substrate for coralligenous buildups offshore Venice, Italy
title_fullStr Paleochannel and beach-bar palimpsest topography as initial substrate for coralligenous buildups offshore Venice, Italy
title_full_unstemmed Paleochannel and beach-bar palimpsest topography as initial substrate for coralligenous buildups offshore Venice, Italy
title_sort paleochannel and beach-bar palimpsest topography as initial substrate for coralligenous buildups offshore venice, italy
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/87294
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