Modern sedimentary facies in a progradational barrier-spit system: Goro lagoon, Po delta, Italy

Bezzi, Annelore; Casagrande, Giacomo; Martinucci, Davide; Pillon, Simone; Grande, Carlo Del; Fontolan, Giorgio

doi:10.1016/j.ecss.2019.106323

Cited by 11 publications

(10 citation statements)

References 43 publications

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“…The shoreline aligned sandbody, the lithofacies characteristics, the absence of finegrained sediments, and the presence of reworked shell fragments suggest deposition either as prograding upper shoreface-beach deposits of a strandplain or a coastal barrier spit/island [2,[4][5][6][78][79][80]. Coastal barriers and strandplains are prominent depositional features supplied and molded almost entirely by marine processes.…”

Section: Depositional Settingmentioning

confidence: 99%

“…They consist of sandbodies of similar origin and facies characteristics. They are highly dynamic and show significant facies variability even within minimal thicknesses [1,80]. Contrary to strandplains, coastal barriers are elongate sandy islands, of different width, parallel to the shore and separated from the mainland by lagoons [81].…”

Section: Depositional Settingmentioning

confidence: 99%

“…The formation and evolution of coastal barriers/spits are largely controlled by availability of mobile sediments, hydraulic (wave and tide) energy, sea-level (SL) changes and a low-gradient profile to provide space for a back-barrier lagoon to form [4,5,78,80,[83][84][85]].…”

Section: Depositional Settingmentioning

confidence: 99%

“…The composition and the availability of sediments for building coastal barriers depend largely on the regional geology and climate. Modern-day siliciclastic barriers are recognized from humid regions covering about 12 to 13% of the world's coasts [6,78,80], whereas carbonate barriers are developed under arid to semi-arid climate comprising only 1% [4]. Barriers develop when the supply of bulk sediments from alongshore or offshore sources are plentiful.…”

Section: Source and Availability Of Sedimentsmentioning

confidence: 99%

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Depositional Setting and Cementation Pattern of Al-Mejarma Beachrocks, Saudi Arabia: A Proxy for the Late Quaternary Red Sea Coastal Evolution

Ghandour

Al-Washmi

Khan

et al. 2021

JMSE

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This study utilizes lithofacies characteristics, petrographic, XRD, and stable isotope data of Al-Mejarma beachrocks, Red Sea, Saudi Arabia, to interpret its depositional setting, origin of cement, and coastal evolution. The beachrock is 1.15 m thick, medium to very coarse-grained sandstone with scattered granules. It shows massive to graded bedding, horizontal, ripple, and shore parallel to slightly oblique planar cross-laminations, with a remarkable absence of bioturbation. It was deposited by shore-parallel longshore currents in a relatively high-energy beach environment. The framework comprises quartz, feldspars, and lithic fragments admixed with biogenic remains of algae, mollusca, foraminifera, corals, and echinoids. They are cemented by high magnesium calcite in the form of isopachous rims and pore-filling blades, and rarely, as a meniscus bridge. The mean values of δ18OVPDB and δ13CVPDB are 0.44‰ and 3.65‰, respectively, suggesting a seawater origin for the cement. The framework composition, facies geometry, and association with back-barrier lagoon impose a deposition as a shoreface-beach barrier through two stages corresponding to the middle and late Holocene. The first stage attests landward migrating sediment accumulation and rapid marine cementation. The sediments stored offshore during the early and middle Holocene humid periods migrated landward from offshore and alongshore by onshore waves and longshore drift during the middle and late Holocene sea-level highstand. They were cemented to form beachrock and subsequently emerged as the late Holocene sea-level fell.

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Section: Depositional Settingmentioning

confidence: 99%

Section: Depositional Settingmentioning

confidence: 99%

Section: Depositional Settingmentioning

confidence: 99%

Section: Source and Availability Of Sedimentsmentioning

confidence: 99%

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Depositional Setting and Cementation Pattern of Al-Mejarma Beachrocks, Saudi Arabia: A Proxy for the Late Quaternary Red Sea Coastal Evolution

Ghandour

Al-Washmi

Khan

et al. 2021

JMSE

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“…This evolution is shown in the multiannual Landsat imagery slideshow retrievable with Google Earth. The overall accretion tendency of the Scanno of Goro is reported on the EMODnet Geology website 1 and in Simeoni et al (2007) and Bezzi et al (2019).…”

Section: The Study Sitementioning

confidence: 99%

Downscaling With an Unstructured Coastal-Ocean Model to the Goro Lagoon and the Po River Delta Branches

et al. 2021

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The Goro Lagoon Finite Element Model (GOLFEM) presented in this paper concentrates on the high-resolution downscaled model of the Goro Lagoon, along with five Po river branches and the coastal area of the Po delta in the northern Adriatic Sea (Italy) where crucial socio-economic activities take place. GOLFEM was validated by means of validation scores (bias – BIAS, root mean square error – RMSE, and mean absolute error – MAE) for the water level, current velocity, salinity and temperature measured at several fixed stations in the lagoon. The range of scores at the stations are: for temperature between −0.8 to +1.2°C, for salinity from −0.2 to 5 PSU, for sea level 0.1 m. The lagoon is dominated by an estuarine vertical circulation due to a double opening at the lagoon mouth and sustained by multiple sources of freshwater inputs. The non-linear interactions among the tidal forcing, the wind and the freshwater inputs affect the lagoon circulation at both seasonal and daily time scales. The sensitivity of the circulation to the forcings was analyzed with several sensitivity experiments done with the exclusion of the tidal forcing and different configurations of the river connections. GOLFEM was designed to resolve the lagoon dynamics at high resolution in order to evaluate the potential effects on the clam farming of two proposed scenarios of human intervention on the morphology of the connection with the sea. We calculated the changes of the lagoon current speed and salinity, and using opportune fitness indexes related to the clams physiology, we quantified analytically the effects of the interventions in terms of extension and persistence of areas of the clams optimal growth. The results demonstrate that the correct management of this kind of fragile environment relies on both long-term (intervention scenarios) and short-term (coastal flooding forecasts and potential anoxic conditions) modeling, based on a flexible tool that is able to consider all the recorded human interventions on the river connections. This study also demonstrates the importance of designing a seamless chain of models that are capable of integrating local effects into the coarser operational oceanographic models.

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Where did Christopher Columbus start?: The estuarine scenario of a historical date

Arroyo

Muñoz

Carrasco

et al. 2021

Estuarine, Coastal and Shelf Science

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Modern sedimentary facies in a progradational barrier-spit system: Goro lagoon, Po delta, Italy

Cited by 11 publications

References 43 publications

Depositional Setting and Cementation Pattern of Al-Mejarma Beachrocks, Saudi Arabia: A Proxy for the Late Quaternary Red Sea Coastal Evolution

Depositional Setting and Cementation Pattern of Al-Mejarma Beachrocks, Saudi Arabia: A Proxy for the Late Quaternary Red Sea Coastal Evolution

Downscaling With an Unstructured Coastal-Ocean Model to the Goro Lagoon and the Po River Delta Branches

Where did Christopher Columbus start?: The estuarine scenario of a historical date

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