The morphodynamics and internal structure of intertidal fine-gravel dunes: Hills Flats, Severn Estuary, UK

Carling, Paul A.; Radecki‐Pawlik, Artur; Williams, Jon J.; Rumble, B.; Meshkova, Lyubov; Bell, Paul S.; Breakspear, Richard

doi:10.1016/j.sedgeo.2005.07.007

Cited by 28 publications

(17 citation statements)

References 25 publications

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“…FIMI values in these samples range from 4 to 3. The silty intercalations between the sand layers correspond to fine grain drapes described recently by Carling et al (2006) for the Severn Estuary, UK. Consequently, the entire Unit II may be interpreted as reflecting a landeocean interface dominated by fluviotidal dynamics that have shaped the outer reaches of the estuary.…”

Section: Reconstruction Of Environmental Changes During the Process Osupporting

confidence: 61%

Chronology of the sedimentary processes during the postglacial sea level rise in two estuaries of the Algarve coast, Southern Portugal

Boski

Camacho

Moura

et al. 2008

Estuarine, Coastal and Shelf Science

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Section: Reconstruction Of Environmental Changes During the Process Osupporting

confidence: 61%

Chronology of the sedimentary processes during the postglacial sea level rise in two estuaries of the Algarve coast, Southern Portugal

Boski

Camacho

Moura

et al. 2008

Estuarine, Coastal and Shelf Science

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“…Generally, the stratigraphy of gravel dunes is not well known (Carling 1999;Carling et al 2005) and additional information would contribute to knowledge of gravel dune dynamics more broadly (Best 2005). Specifically, a hydraulic interpretation of the detailed stratification within the Kuray dunes could be used to improve lake draining models (Bohorquez et al 2015) if the nature of the flow field above the dune can be inferred from the stratigraphy.…”

mentioning

confidence: 99%

Ground-penetrating radar stratigraphy and dynamics of megaflood gravel dunes

Carling

Bristow

Litvinov

2016

JGS

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Ground-penetrating radar was used to elucidate the stratigraphy of late Pleistocene gravel dunes in the Altai Mountains of southern Siberia that formed when a lake emptied as a result of ice-dam failure. Survey-lines across dunes had a resolution of decimetres, with depth penetration of 20 m. The reflections identify bounding surfaces and radar facies. Two classes of unconformities are identified: (1) an erosional unconformity at the base of the dunes; (2) steeply inclined unconformities that truncate underlying inclined reflections and are downlapped by overlying inclined reflections within the dunes. Unconformities define six radar facies (RF): RF 1, basal subhorizontal discordant reflections; RF 2, poorly defined discordant reflections; RF 3, planar inclined reflections; RF 4, sigmoidal inclined reflections; RF 5, trough fills; RF 6, lowangle inclined reflections. The basal unconformity represents the flood-cut surface, across which the dunes migrated. The inclined unconformities may be interpreted in two ways: (1) erosional surfaces induced by unsteady flow within one flood, or (2) erosional surfaces developed by a series of floods reactivating dunes left stranded by previous floods. The evidence favours the latter model, which is consistent with the occurrence of several dune-forming events within the basin. The broader implications of the study are considered with respect to investigations of megaflood bedforms worldwide.

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“…Esta última tuvo un rango de velocidades relativamente bajas puesto que, si bien generó aplanamiento del tope de la duna, fue incapaz de producir caras de avalancha que evidencien migración de la forma de lecho bajo su influencia. La corriente de flujo generó, en cambio, migración y rápida agradación del tren de dunas, según se infiere a partir de la persistencia de los niveles de óndulas aplanadas (Dalrymple et al, 1990;Carling et al, 2006). Considerando la superficie de geometría planar en la base de este elemento y su extensión y continuidad a escala regional, junto con la persistencia a lo largo de más de 15 km de estos complejos de dunas de gran escala de gravas y arenas, se interpreta el desarrollo de BM correspondientes a bocas de estuarios dominados por mareas.…”

Section: Barras De Mareas (Bm)unclassified

Analisis estratigrafico secuencial de las formaciones Anacleto y Allen (Cretacico Tardio) en el borde nororiental de Cuenca Neuquina, Argentina

Armas

Sánchez

2011

Andgeo

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The morphodynamics and internal structure of intertidal fine-gravel dunes: Hills Flats, Severn Estuary, UK

Cited by 28 publications

References 25 publications

Chronology of the sedimentary processes during the postglacial sea level rise in two estuaries of the Algarve coast, Southern Portugal

Chronology of the sedimentary processes during the postglacial sea level rise in two estuaries of the Algarve coast, Southern Portugal

Ground-penetrating radar stratigraphy and dynamics of megaflood gravel dunes

Analisis estratigrafico secuencial de las formaciones Anacleto y Allen (Cretacico Tardio) en el borde nororiental de Cuenca Neuquina, Argentina

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