The Gela Basin pockmark field in the strait of Sicily (Mediterranean Sea): chemosymbiotic faunal and carbonate signatures of postglacial to modern cold seepage (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• The Gela Basin pockmark field in the strait of Sicily (Mediterranean Sea): chemosymbiotic faunal and carbonate signatures of postglacial to modern cold seepage (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.5194/bg-10-4653-2013 (literal)

Alternative label

• Taviani M., Angeletti M., Ceregato A., Foglini F., Froglia C., Trincardi F. (2013)
  The Gela Basin pockmark field in the strait of Sicily (Mediterranean Sea): chemosymbiotic faunal and carbonate signatures of postglacial to modern cold seepage
  in Biogeosciences (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Taviani M., Angeletti M., Ceregato A., Foglini F., Froglia C., Trincardi F. (literal)

Pagina inizio

• 4653 (literal)

Pagina fine

• 46571 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 10 (literal)

Rivista

• Biogeosciences (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 7 (literal)

Note

• PuM (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• CNR-ISMAR, Geologia Marina - Bologna CNR-ISMAR, Pesca Marittima - Ancona (literal)

Titolo

• The Gela Basin pockmark field in the strait of Sicily (Mediterranean Sea): chemosymbiotic faunal and carbonate signatures of postglacial to modern cold seepage (literal)

Abstract

• The geo-biological exploration of a pockmark field located at ca. 800m below sea level in the Gela basin (Strait of Sicily, Central Mediterranean) provided a relatively diverse chemosymbiotic community and methane-imprinted carbonates. To date, this is the first occurrence of such a type of specialised deep-water cold-seep communities recorded from this key region, before documented in the Mediterranean as rather disjunct findings in its eastern and westernmost basins. The thiotrophic chemosymbiotic organisms recovered from this area include empty tubes of the vestimentiferan Lamellibrachia sp., loose and articulated shells of lucinids (Lucinoma kazani, Myrtea amorpha), vesicomyids (Isorropodon perplexum), and gastropods (Taranis moerchii). A callianassid decapod (Calliax sp.) was consistently found alive in large numbers in the pockmark mud. Their post-mortem calcified parts mixed with molluscs and subordinately miliolid foraminifers form a distinct type of skeletal assemblage. Carbonate concretions display 13C values as low as -40? PDB suggesting the occurrence of light hydrocarbons in the seeping fluids. Since none of the truly chemosymbiotic organisms was found alive, although their skeletal parts appear at times very fresh, some specimens have been AMS-14C dated to shed light on the historical evolution of this site. Lamellibrachia and Lucinoma are two of the most significant chemosymbiotic taxa reported from various Mediterranean cold seep sites (Alboran Sea and Eastern basin). Specimens from station MEDCOR78 (pockmark#1, Lat. 3646010.1800 N, Long. 1401031.5900 E, 815m below sea level) provided ages of 11736±636 yr cal BP (Lamellibrachia sp.), and 9609.5±153.5 yr cal BP (L. kazani). One shell of M. amorpha in core MEDCOR81 (pockmark#6, Lat 3645038.8900 N, Long 1400007.5800 E, 822m below sea level) provided a sub-modern age of 484±54 yr cal BP. These ages document that fluid seepage at this pockmark site has been episodically sustaining thiotrophic macrobenthic communities since the end of the Younger Dryas stadial up to sub-recent times. (literal)

Prodotto di

• Struttura dei margini continentali, emissione dei fluidi attraverso di essi, e impatto sugli ecosistemi (TA.P02.028.002) (Modulo)
• Marine science institute (ISMAR) (Istituto)
• Conoscenza del livello di funzionalità degli ecosistemi marini soggetti ad attività antropiche e a sfruttamento sostenibile delle risorse (TA.P04.007.001) (Modulo)

Autore CNR

• FABIO TRINCARDI (Persona)
• Alessandro Ceregato (Persona)
• Lorenzo Angeletti (Unità di personale esterno)
• MARCO TAVIANI (Persona)
• CARLO FROGLIA (Unità di personale interno)
• FEDERICA FOGLINI (Unità di personale interno)

Insieme di parole chiave

• Keywords of "The Gela Basin pockmark field in the strait of Sicily (Mediterranean Sea): chemosymbiotic faunal and carbonate signatures of postglacial to modern cold seepage" (Insieme di parole chiave)

Incoming links:

Prodotto

• Marine science institute (ISMAR) (Istituto)
• Conoscenza del livello di funzionalità degli ecosistemi marini soggetti ad attività antropiche e a sfruttamento sostenibile delle risorse (TA.P04.007.001) (Modulo)
• Struttura dei margini continentali, emissione dei fluidi attraverso di essi, e impatto sugli ecosistemi (TA.P02.028.002) (Modulo)

Autore CNR di

• Lorenzo Angeletti (Unità di personale esterno)
• Alessandro Ceregato (Persona)
• MARCO TAVIANI (Persona)
• FEDERICA FOGLINI (Unità di personale interno)
• FABIO TRINCARDI (Persona)
• CARLO FROGLIA (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Biogeosciences (Rivista)

Insieme di parole chiave di

• Keywords of "The Gela Basin pockmark field in the strait of Sicily (Mediterranean Sea): chemosymbiotic faunal and carbonate signatures of postglacial to modern cold seepage" (Insieme di parole chiave)