Prediction of shoreline–shelf depositional process regime guided by palaeotidal modelling

Collins, Daniel J.; Avdis, Alexandros; Wells, M. J.; Dean, Christopher D.; Mitchell, Andrew; Allison, Peter A.; Johnson, Howard D.; Hampson, Gary J.; Piggott, Matthew D.

doi:10.1016/j.earscirev.2021.103827

Cited by 6 publications

(1 citation statement)

References 245 publications

(222 reference statements)

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“…Note that the presence of fluid mud at the bottom of the sea would have the opposite effect, enhancing the tidal current even more by lowering the basal shear stress (Gabioux et al, 2005). The presence of an aeolian margin providing clean sand to a neighbouring tide‐dominated sea could therefore help reduce the dissipation of the tidal energy, while the overall physiography of the basin in question remains the primary parameter influencing the ability of tides to propagate in a basin (Collins et al, 2018, 2021; Dean et al, 2019; Zuchuat et al, 2022). The scale of tidal influence can therefore be shown to be a critical factor in the preservation of deflationary aeolian sediments and the outpacing of sediment availability in response to marginal marine influence, and as a result can greatly affect predictions of subsurface architecture and ultimately reservoir characterisation.…”

Section: Discussionmentioning

confidence: 99%

The sedimentological expression of transgression–regression cycles upon aeolian–marine margins

Cross

Pettigrew

Priddy

et al. 2023

The Depositional Record

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When compared to their temperate coastal counterparts, sediments deposited and preserved along arid aeolian to shallow‐marine margins remain relatively poorly understood, particularly at the scale of lithofacies units and architectural elements. These systems often record evidence for relative sea‐level change within sedimentary basins. This work focusses on the Entrada–Curtis–Summerville formations that crop out in central eastern Utah, USA, and provides a detailed analysis of the aeolian Moab Member of the Curtis Formation (informally known as the Moab Tongue) that was impacted by cycles of marine transgressions and regression in the late Jurassic. This study utilises photogrammetry, sedimentary logging and sequence‐stratigraphical analysis techniques. Results indicate that four short‐lived transgressive‐regressive cycles are preserved within the Moab Member, followed by a broad regressive event recorded at the transition between the Curtis and Summerville formations. These cycles relate to changes in the relative sea level of the Sundance Sea and the deflation and expansion of the neighbouring aeolian dune field. During periods of normal regression, marine sediments displayed evidence of tidal and wave action, whereas the continental domain was characterised by growth of the aeolian system. However, when regression occurred within optimal physiographic conditions such as a restricted, semi‐enclosed basin, and at sufficient magnitude to outpace erg expansion, this acted to shut‐down bedform development and preservation. A rapid restriction of aeolian sediment availability and the inability of the dune field to recover resulted in the formation of deflationary sandsheets, arid coastal plain strata and contemporaneous shallow‐marine deposits that are starved of wind‐sourced sediments. This study highlights how a rapidly developing high‐magnitude regression can lead to the overall retraction of the erg. Deciphering the evolution and sequence stratigraphical relationships of arid aeolian to shallow marine margins is important in both understanding environmental interactions and improving the characterisation of reservoir rocks deposited in these settings.

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Section: Discussionmentioning

confidence: 99%

The sedimentological expression of transgression–regression cycles upon aeolian–marine margins

Cross

Pettigrew

Priddy

et al. 2023

The Depositional Record

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Testing geological proxies for deep‐time tidal model simulations

Guo,

Fitzgerald,

Hewitt

et al. 2023

The Depositional Record

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Tides are a key driver of a range of Earth system processes, and we now have the capacity to simulate tidal dynamics on a range of temporal and spatial scales. Deep‐time tidal model simulations have been used to provide insight into past ocean circulation patterns, evolution of life and the developments of the Earth‐Moon system's orbital configuration. However, these tidal model simulations are relatively poorly constrained and validated because of a lack of readily available proxies. The feasibility of using two types of proxy is explored here; (1) sedimentary deposits which can directly estimate palaeotidal ranges, and (2) black shale, to constrain three palaeotidal model simulations for different time slices. Specifically, three palaeotidal range proxies were used for the early Devonian (400 Ma), three palaeotidal range proxies and five black shales for the lower Jurassic (185 Ma), and eight black shales for the early Cretaceous (95 Ma). Both tidal proxies confirm the tidal model results in most locations. The model results for 400 Ma and 185 Ma matched 2/3 of the palaeotidal range proxies for each of these periods. The locations of black shale were compared with tidal front locations predicted by the model outputs based on the Simpson–Hunter parameter and the model results from 95 to 185 Ma agree with the black shale proxies in 10/13 of the locations. In the cases where there is a disagreement, the model resolution is probably too low to fully resolve the details of the coastal topography, or—in one case—the palaeobathymetry is incorrect. Consequently, it is argued that it is worth expanding this type of work, and that such data can be used to validate both models and reconstructions.

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Tidal dynamics drive ooid formation in the Capricorn Channel since the Last Glacial Maximum

et al. 2022

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Prediction of shoreline–shelf depositional process regime guided by palaeotidal modelling

Cited by 6 publications

References 245 publications

The sedimentological expression of transgression–regression cycles upon aeolian–marine margins

The sedimentological expression of transgression–regression cycles upon aeolian–marine margins

Testing geological proxies for deep‐time tidal model simulations

Tidal dynamics drive ooid formation in the Capricorn Channel since the Last Glacial Maximum

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