Subsurface Evidence of Storm-Driven Breaching along a Transgressing Barrier System, Cape Cod, U.S.A.

doi:10.2112/jcoastres-d-14-00109.1

Cited by 14 publications

(3 citation statements)

References 45 publications

(98 reference statements)

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“…We also used the spatial extension of seismic facies, along with the reciprocal position between facies, to infer depositional environments and formative processes. The seismic facies interpretation is also supported by previous study, e.g., some general seismic facies characteristics of the latest Quaternary transgressive deposits and incised valley infillings were established (i.e., [13,15,[40][41][42][43]). More specifically for the southern Adriatic, Maselli and Trincardi [30], Maselli et al [36], and Maselli et al [31] provide a complete description of the seismic facies that characterise the TST and HST.…”

Section: Seismic Facies and Unconformity-bounded Seismic Unitssupporting

confidence: 84%

“Continuous” Backstepping of Holocene Coastal Barrier Systems into Incised Valleys: Insights from the Ofanto and Carapelle-Cervaro Valleys

Santis

Caldara

Pennetta

2020

Water

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Two recently recognised incised valleys in the Manfredonia Gulf are described. The first (CCV) is correlated with the current Carapelle and Cervaro streams. The second (OSFV) is correlated mostly with the current Ofanto River. Six seismic facies and seven unconformity-bounded seismic units have been identified, which infilled CCV and OSFV. In CCV, during the sea-level ranges from −29 to −18 and from −18 to −4.7 m b.s.l., two barrier/spit-backbarrier systems formed in the most landward sector of the valley. The lower system was attributed to a time interval between 9.2 ka BP and ca. 8.3 ka BP, chronologically constrained by the ZS2 borehole. In OSFV, during the sea level ranges from −39 to −29, and from −29 and to −18 m b.s.l., two beach/spit-backbarrier systems, arranged in a “continuous” landward backstepping pattern, formed. The phase that contributed most to the beach/spit-backbarrier systems formation is that which is coeval with the formation of the sapropel S1 in the Mediterranean. The conservation of barrier/spit-backbarrier systems arranged in a “continuous” landward backstepping pattern, is due to a strong and continued sediment supply that occurred during the sapropel S1 formation, coupled with low-gradient settings and a regime of slow sea-level rise.

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Section: Seismic Facies and Unconformity-bounded Seismic Unitssupporting

confidence: 84%

“Continuous” Backstepping of Holocene Coastal Barrier Systems into Incised Valleys: Insights from the Ofanto and Carapelle-Cervaro Valleys

Santis

Caldara

Pennetta

2020

Water

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“…We also used the spatial extension of seismic facies, along with the reciprocal position between facies, to infer depositional environments and formative processes. In addition, the literature interpretation on seismic facies was used to improve the seismic facies interpretation work (e.g., [13,30,31,36,[39][40][41][42][43]). The seismic facies interpretations are also based on the data of two vibrocores drilled in 2015 in the Manfredonia Gulf (Figure 1): SP1_VC24 (intercepted by profile P2) and SP1_VC25 (close to profile PX2) on behalf of the Puglia Basin Authority (AdB).…”

Section: Seismic Surveys Seismic Facies and Unconformity-bounded Seismic Unitsmentioning

confidence: 99%

Transgressive Architecture of Coastal Barrier Systems in the Ofanto Incised Valley and Its Surrounding Shelf in Response to Stepped Sea-Level Rise

2020

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Coastal deposits/barriers react to sea-level rise through rollover or overstepping. Preserved coastal deposits/barriers allow us to examine coastal responses to sea-level rise, an important aspect within the context of climate change. This study identifies the Ofanto incised valley and examines the possible factors that caused the considerable difference in shape between this valley and adjacent valleys: the Carapelle and Cervaro incised valley and Manfredonia incised valley. In addition, this study assesses the response of transgressive units to stepped sea-level rise with a focus on the evolution of palaeo-barriers/shorelines on the continental shelf and within the infill of Ofanto incised valley. We identified the traces of two slowstands in sea-level rise: the first, short-lived at a centennial scale, interrupted Meltwater Pulse 1A; the second is referable to part of Bølling-Allerød and Younger Dryas. During these two slowstands, two barrier-shoreface/estuarine-backbarrier systems formed. Meltwater Pulse 1A and Meltwater Pulse 1B led to overstepping and partial preservation of these systems in the form of aligned topographic highs. The second slowstand gave rise to continuous landward backstepping of the coastal barrier system; during the following Meltwater Pulse 1B (MWP-1B), landward rollover of the coeval barrier/backbarrier system occurred.

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“…No caso da hipótese do inlet, considerando que a área é caracterizada por um contexto de dinâmica costeira dominada pela ação das ondas, uma vez que a amplitude de maré é de apenas 1,3 m (DHN), seria pouco provável o preenchimento de um inlet com fácies exclusivamente com mergulho em direção ao mar, cuja orientação da linha de GPR é transversal à costa. Fitzgerad et al (2000) e Maio et al (2016) identificaram radarfácies de paleoinlets em áreas de micro e meso-maré, respectivamente, e verificaram padrões de preenchimento relacionados ao transporte sedimentar em direção ao continente, por ação das ondas e fluxos de enchente, e ao transporte longitudinal. No caso da área investigada, não foi possível realizar a aquisição da linha de GPR na orientação longitudinal à costa, considerada mais adequada à interpretação de inlets, uma vez que a radarfácies f5 encontra-se na depressão intra-crista que está preenchido por um corpo d'água.…”

Section: Discussões Sobre As Radarfácies Que Compõe a Arquitetura Intunclassified

Registros de erosão e progradação revelados por radar de penetração do solo (GPR) na barreira regressiva pleistocênica do complexo deltaico do Rio Paraíba do Sul (RJ)

Rocha

Fernández

Rodrigues

2017

ABEQUA

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ResumoA estratigrafia e a arquitetura deposicional das barreiras regressivas refletem os processos que ocorreram durante a progradação desse sistema, decorrentes do comportamento do nível relativo do mar e do aporte sedimentar, podendo formar extensas planícies costeiras como no caso do Complexo Deltaico do Rio Paraíba do Sul (CDRPS). A utilização do Radar de Penetração do Solo (GPR) tem possibilitado novas discussões acerca dessas feições a partir da identificação de registros de fases de erosão, eventos de alta energia decorrentes de ondas de tempestade; e retrabalhamento por drenagens e pela ação eólica. O objetivo do presente trabalho é caracterizar as radarfácies e as superfícies erosivas da barreira regressiva pleistocênica do CDRPS, a partir da utilização do GPR, considerando as características geomorfológicas da respectiva planície. Foram utilizadas antenas de 200 MHz em modo Common-offset; e de 80 MHz em modo CMP para correção da velocidade da onda em profundidade. Foram identificadas radarfacies que compõe uma sequência regressiva (f1, f2, f3 e f4); radarfácies associadas ao preenchimento da depressão intra-crista(f5); leques de transposição (f7); barras offshore (f3a); além da identificação das superfícies erosivas. Estes últimos refletores representam interrupções na progradação da planície, correspondente a uma fase ou evento erosivo que, inclusive, se expressa nos truncamentos dos alinhamentos das cristas de praia. Nesse sentido, foi possível identificar radarfácies nas barreiras regressivas que extrapolam a arquitetura deposicional como reflexo apenas da progradação, como os refletores que marcam os registros de fases erosivas, bem como os refletores que permitem avaliar os aspectos da dinâmica geomorfológica, no que se refere á gênese e ao retrabalhamento associado à hidrodinâmica das drenagens localizadas entre as depressões das cristas de praia. Palavras-chave: Radar de penetração do solo; arquitetura deposicional; cristas de praia AbstractThe stratigraphy and depositional architecture of regressive barriers reflect the progradation process due to sea level behaviour and sediment supply, with the possibility of extensive coastal plain formation, as occurs in the Paraíba do Sul River Deltaic Complex (CDRPS). The use of GPR has enabled further discussion about these features by identifying records of erosion phases, high-energy events and reworking by drainage and wind action. The main of this study is to identify the radarfacies of the Pleistocene regressive barrier in the CDRPS, using GPR, and considering the given geomorphological characteristics of the respective coastal plain. A 200 MHz antenna was used, in Common-offset mode; and an 80 MHz, in CMP mode for the depth correction. Sequences of regressive radarfacies were identified (f1, f2, f3 and f4) and other radarfacies associated with the swale infilling (f5), washover fans (7), offshore bars (f3a), and erosional surfaces. These last reflectors represent interruptions in the progradation of the coastal plain, followed by a phase or an eros...

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Subsurface Evidence of Storm-Driven Breaching along a Transgressing Barrier System, Cape Cod, U.S.A.

Cited by 14 publications

References 45 publications

“Continuous” Backstepping of Holocene Coastal Barrier Systems into Incised Valleys: Insights from the Ofanto and Carapelle-Cervaro Valleys

“Continuous” Backstepping of Holocene Coastal Barrier Systems into Incised Valleys: Insights from the Ofanto and Carapelle-Cervaro Valleys

Transgressive Architecture of Coastal Barrier Systems in the Ofanto Incised Valley and Its Surrounding Shelf in Response to Stepped Sea-Level Rise

Registros de erosão e progradação revelados por radar de penetração do solo (GPR) na barreira regressiva pleistocênica do complexo deltaico do Rio Paraíba do Sul (RJ)

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