Geology, Morphology, and Sedimentology of Estuaries and Coasts

Flemming, Burghard W.

doi:10.1016/b978-0-12-374711-2.00302-8

Cited by 40 publications

(32 citation statements)

References 138 publications

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“…This is a clear simplification, even for invariant offshore wave climate, since in relation to a sea-level rise it is reasonable to expect that the water depth over the shore platform will increase, resulting in a landward movement of the wave breaking position and a somewhat higher wave energy at the base of the beach (Trenhaile, 2011). Considering that beach slope is a direct function of grain size and the degree of wave exposure (Komar, 1998;Flemming, 2011), the expected increase in wave energy would probably lead to a slight decrease in beachface slope. Nevertheless, while the consideration of different beachface slopes for reference and future scenarios can be easily accounted in the model Eq.…”

Section: Discussionmentioning

confidence: 98%

A simple model to estimate the impact of sea-level rise on platform beaches

Taborda

Ribeiro

2015

Geomorphology

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Section: Discussionmentioning

confidence: 98%

A simple model to estimate the impact of sea-level rise on platform beaches

Taborda

Ribeiro

2015

Geomorphology

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“…As outlined above, the Pliocene phase of uplift and erosion (Cederbom et al, 2004;2011) resulted in the current exposure pattern where OMM deposits are only fragmentary preserved in the west (Fig. 2).…”

Section: The Upper Marine Molassementioning

confidence: 91%

“…This information suggests that the uppermost beds of the OMM-Ib (including the "Muschelsandstein") were exposed to erosion after deposition (Allen et al, 1985;Jost et al, 2016). Because of postdepositional erosion of the entire Molasse sequences since the Pliocene (Cederbom et al, 2004;2011), the continuation of the sedimentary history cannot be constrained.…”

Section: Eastern Swiss Molasse Basinmentioning

confidence: 99%

“…This could explain why the operation of waves is predominantly recorded along the eastern proximal steeper basin margin. Indeed, investigates on modern coasts have shown that steeper coasts tend to promote the formation of larger waves (Flemming, 2011). In contrast, in the western Swiss Molasse, estuaries and tidal-channels could establish as the wave energy decreased in the subdued coastal landscape.…”

Section: Stratigraphic Signals Related To Crustal-scale Processes: Thmentioning

confidence: 99%

“…Because of the architectural similarity to the east, we tentatively consider 25 that the deposition of the "Muschelsandstein" occurred synchronously across the entire Swiss Molasse basin. Similar to the east, the post-depositional erosion during the Pliocoene (Cederbom et al, 2004;2011) prevents us from presenting any further details on the continuation of the sedimentary history.…”

mentioning

confidence: 99%

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Deciphering tectonic, eustatic and surface controls on the 20 Ma-old Burdigalian transgression recorded in the Upper Marine Molasse in Switzerland

Garefalakis

Schlunegger

2019

Preprint

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The stratigraphic architecture of the Swiss Molasse basin reveals crucial information about the basin's geometry, its evolution and the processes leading to the deposition of the clastic material. Nevertheless, the formation of the Upper Marine Molasse (OMM) and the controls on the related Burdigalian transgression are not fully understood yet. During these times, 10 from c. 20 to 17 Ma, the Swiss Molasse basin was partly flooded by a peripheral shallow marine sea, striking SW -NE. We proceeded through detailed sedimentological and stratigraphic examinations of several sites across the entire Swiss Molasse basin in order to deconvolve the stratigraphic signals related surface and tectonic controls. Surface-related signals include stratigraphic responses to changes in eustatic sea level and sediment fluxes, while the focus on crustal-scale processes lies on the uplift of the Aar-massif at c. 20 Ma. 15Field examinations show, that the evolution of the Burdigalian seaway was characterized by (i) shifts in the depositional settings, (ii) changes in discharge directions, a deepening and widening of the basin, and (iv) phases of erosion and nondeposition. We relate these changes in the stratigraphic records to a combination of surface and tectonic controls at various scales. In particular, roll-back subduction of the European mantle lithosphere, delamination of crustal material and the associated rise of the Aar-massif most likely explain the widening of the basin particular at distal sites. In addition, the uplift 20 of the Aar-massif was likely to have shifted the patterns of surface loads. These mechanisms could have caused a flexural adjustment of the foreland plate underneath the Molasse basin, which we use as mechanism to explain the establishment of distinct depositional environments and particularly the formation of subtidal-shoals where a lateral bulge is expected. In the Alpine hinterland, these processes occurred simultaneously with a period of fast tectonic exhumation accomplished through slip along the Simplon detachment fault, with the consequence that sediment flux to the basin decreased. It is possible that 25 this reduction in sediment supply contributed to the establishment of marine conditions in the Swiss Molasse basin and thus amplified the effect related to the tectonically controlled widening of the basin. Because of the formation of shallow marine conditions, subtle changes in the eustatic sea level contributed to the occurrence several hiatus that chronicle periods of erosion and non-sedimentation. While these mechanisms are capable of explaining the establishment of the Burdigalian Solid Earth Discuss., https://doi.

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Tropical Marine Geosphere

2021

Tropical Marine Ecology

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Geology, Morphology, and Sedimentology of Estuaries and Coasts

Cited by 40 publications

References 138 publications

A simple model to estimate the impact of sea-level rise on platform beaches

A simple model to estimate the impact of sea-level rise on platform beaches

Deciphering tectonic, eustatic and surface controls on the 20 Ma-old Burdigalian transgression recorded in the Upper Marine Molasse in Switzerland

Tropical Marine Geosphere

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