The late-Holocene Gargano subaqueous delta, Adriatic shelf: Sediment pathways and supply fluctuations

Cattaneo, Antonio; Correggiari, A.; Langone, Leonardo; Trincardi, Fabio

doi:10.1016/s0025-3227(02)00614-x

Cited by 323 publications

(344 citation statements)

References 55 publications

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“…Some wave activity occurred between the peak of the discharge event and the seafloor sampling cruise, thus it is not clear if these depositional patterns reflect direct delivery to the seafloor from the river plume or the combination of seafloor delivery and subsequent transport processes. (Correggiari et al, 2001;Cattaneo et al, 2003).…”

Section: Site Descriptionmentioning

confidence: 99%

Observations and modeling of wave-supported sediment gravity flows on the Po prodelta and comparison to prior observations from the Eel shelf

Traykovski

Wiberg

Geyer

2007

Continental Shelf Research

176

195

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Abstract:A mooring and tripod array was deployed from the fall of 2002 through the spring of 2003 on the Po prodelta to measure sediment transport processes associated with sediment delivered from the Po River. Observations on the prodelta revealed wave-supported gravity flows of high concentration mud suspensions that are dynamically and kinematically similar to those observed on the Eel shelf . Due to the dynamic similarity between the two sites, a simple one-dimensional across-shelf model with the appropriate bottom boundary condition was used to examine fluxes associated with this transport mechanism at both locations. To calculate the sediment concentrations associated with the wave-dominated and wave-current resuspension, a bottom boundary condition using a reference concentration was combined with an "active layer" formulation to limit the amount of sediment in suspension. Whereas the wave-supported gravity flow mechanism dominates the transport on the Eel shelf, on the Po prodelta flux due to this mechanism is equal in magnitude to transport due to wave resuspension and wind-forced mean currents in cross-shore direction. Southward transport due to wave resuspension and wind forced mean currents move an order of magnitude more sediment along-shore than the downslope flux associated wave-supported gravity flows.

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Section: Site Descriptionmentioning

confidence: 99%

Observations and modeling of wave-supported sediment gravity flows on the Po prodelta and comparison to prior observations from the Eel shelf

Traykovski

Wiberg

Geyer

2007

Continental Shelf Research

176

195

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“…The Po River remains the major transporter of detritus in the entire Adriatic Sea, reflecting both the very low sediment supply from the eastern Adriatic coast [32] and the substantial volumes transported from the western coast. Sediment supply from eastern Alpine rivers delivers 3 x 10 6 t/yr, the Po River 15 x 10 6 t/yr, and the eastern Apennine rivers north of the Gargano promontory deliver 32.2 x 10 6 t/yr; 1.5 x 10 6 t/yr are delivered by rivers to the south of that promontory [33][34][35][36]. As result of glaciations, the eastern part of the Po delta and the entire prodelta prograded about 200 km and transported clastics into the present-day Croatian offshore in the area south-west of Istra Peninsula and the Kvarner islands.…”

Section: Methodsmentioning

confidence: 99%

Regional turbidites and turbiditic environments developed during Neogene and Quaternary in Croatia

Malvić¹

2016

Materials and Geoenvironment

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The Croatian Neogene and Quaternary depositional sequences preserve a record of several different depositional environments with turbidite successions. These are turbiditic systems developed during the Late Miocene in the Croatian part of the Pannonian Basin System and during the Pliocene and Pleistocene in the northern Adriatic Sea. The shape, salinity and depths of depositional areas were significantly different in these two depressional areas, but both were fed mostly with Alpine detritus. Neogene turbidites with lacustrine pelitic sedimentation formed thick heterogeneous sequences of sandstones and marls (totalling several hundreds to some thousands of metres in thickness in different depressional parts) of Upper Miocene age in Northern Croatia. By contrast, Pliocene and especially Pleistocene turbidites of the northern Adriatic were deposited in a marine environment where the total thickness of sand and clay sequences can reach up to several thousand metres. In both cases, individual sandy or sandstone turbiditic sequences (events) can reach several tens of metres in thickness. These turbidite clastic sediments are important hydrocarbon reservoirs.Key words: siliciclastics, Pannonian Basin System, Po Depression, Upper Miocene, Pliocene, Quaternary IzvlečekNeogenska in kvartarna sedimentacijska zaporedja na Hrvaškem vsebujejo zapis o nekolikih različnih sedimentacijskih okoljih s turbiditnim zaporedjem. Gre za turbiditne sisteme, razvite za časa poznega miocena v celinskem hrvaškem delu, in v pliocenu in pleistocenu na območju severnega Jadranskega morja. Oblika sedimentacijskih prostorov, slanost in globine so se bistveno razlikovali med tema dvema udorinskima območjema, ki so se pa oboja zapolnjevala s pretežno alpskim drobirjem. Neogenski turbiditi jezerske pelitne sedimentacije so tvorili debela heterogena zaporedja peščenjakov in laporovcev (debeline nekaj sto do nekaj tisoč metrov v različnih delkih udorine) zgornjemiocenske starosti v severni Hrvaški. Nasprotno so bili pa odloženi pliocenski in zlasti pleistocenski turbiditi severnega Jadrana v morskem okolju, v katerem skupne debeline peščenih in glinenih zaporedij znajo doseči nekaj tisoč metrov. V obeh primerih znaša debelina posameznih turbiditnih dogodkov do nekaj deset metrov. Ti turbiditni klastični sedimenti so pomembni rezervoarji ogljikovodikov.

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Section: Morphology Of Drowned Karst Featuresmentioning

confidence: 98%

“…Landward of this area, a mass of late Holocene deposits reaches a thickness of 25 m and displays a clinostratified internal geometry (Cattaneo et al, 2003). At water depths greater than 70 m, late-Holocene muddy deposits are draped on the pre-existing erosional morphology of the area (Cattaneo et al, 2003). Between the two areas of deposition, the flat area is barren of modern muddy late-Holocene sediment, suggesting that, in this region, the Adriatic Coastal Current accelerating around the Gargano Promontory does not allow permanent deposition of mud, as predicted by oceanographic models (Magaldi et al, 2010).…”

Section: Morphology Of Drowned Karst Featuresmentioning

confidence: 99%

Drowned karst landscape offshore the Apulian margin (Southern Adriatic Sea, Italy)

Taviani¹,

Angeletti²,

Campiani³

et al. 2012

JCKS

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The south Adriatic shelf offshore of the predominently carbonate Apulian coast is characterized by a peculiar rough topography interpreted as relic karst formed at a time of lower sea level. The study area covers a surface of about 220 km 2 , with depths ranging from 50 to 105 m. The most relevant and diagnostic features are circular depressions a few tens to 150 m in diameter and 0.50 to 20 m deep thought to be dolines at various stages of evolution. The major doline, Oyster Pit, has its top at about 50 m water depth and is 20 m deep. It is partly filled with sediments redeposited by episodic mass failure from the doline's flank. Bedrock samples from the study area document that Plio-Pleistocene calcarenites, tentatively correlated with the Calcarenite di Gravina Fm, are a prime candidate for the carbonate rocks involved in the karstification, although the presence of other units, such as the Peschici or Maiolica Fms, is not excluded. The area containing this subaerial karst landscape was submerged about 12,500 years ago as a result of the postglacial transgression over the continental shelf.

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The late-Holocene Gargano subaqueous delta, Adriatic shelf: Sediment pathways and supply fluctuations

Cited by 323 publications

References 55 publications

Observations and modeling of wave-supported sediment gravity flows on the Po prodelta and comparison to prior observations from the Eel shelf

Observations and modeling of wave-supported sediment gravity flows on the Po prodelta and comparison to prior observations from the Eel shelf

Regional turbidites and turbiditic environments developed during Neogene and Quaternary in Croatia

Drowned karst landscape offshore the Apulian margin (Southern Adriatic Sea, Italy)

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