Distinct types of crevasse splays formed in the area of Middle Miocene mires, central Poland: Insights from geological mapping and facies analysis

Widera, Marek; Chomiak, Lilianna; Wachocki, Robert

doi:10.1016/j.sedgeo.2022.106300

Cited by 6 publications

(12 citation statements)

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“…the crevasse splays, the depositional forms represented by the SCp and Sp facies can be termed subdeltas (Mjøs et al, 1993), lacustrine (micro)deltas (Tye and Coleman, 1989;Morozova and Smith, 2000;Rajchl and Uličny, 2005;Rajchl et al, 2008;Davies-Vollum et al, 2012;Wang et al, 2020), crevasse deltas (Gradziński et al, 2005;Kędzior et al, 2007;Jerrett et al, 2016), crevasses with deltas (Lewin et al, 2017), or crevasse-splay microdeltas (Teisseyre, 1985;Zwoliński, 1985Zwoliński, , 1992Zieliński, 2014;Chomiak et al, 2019;Wachocki et al, 2020;Widera et al, 2022Widera et al, , 2023and other references therein).…”

Section: Figmentioning

confidence: 99%

“…iD side of the peat-forming floodplain palaeo-lakes (Widera et al, 2022(Widera et al, , 2023. Unfortunately, the lignite-devoid channel-belt sand bodies are little exposed, as they are carefully circumvented by mining activity as being non-economic.…”

Section: Introductionmentioning

confidence: 99%

“…Some of them, such as the local crevasse splays, were unexpected. In the last few years (2018)(2019)(2020)(2021), several crevasse splays became available for direct observation in the opencasts (Jóźwin IIB, Tomisławice) of the Konin Lignite Mine (Chomiak et al, 2019;Wachocki et al, 2020;Widera, 2020;Dziamara et al, 2022Dziamara et al, , 2023Widera et al, 2022Widera et al, , 2023. It seemed that the limiting of lignite mining in the Konin region would prohibit exposure of any additional crevasse splays of scientific interest.…”

Section: Introductionmentioning

confidence: 99%

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Four in one: a new crevasse-splay complex in the middle Miocene of central Poland

Widera,

Dziamara,

Klęsk

et al. 2024

ASGP

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Crevasse splays are typical overbank (extra-channel) deposits, present in all alluvial systems, particularly common on the floodplains of meandering and anastomosing rivers (Makaske, 2001;Miall, 2006;Boggs, 2012;Zieliński, 2014). They form adjacent to the margins of river channels, when the natural levees are locally breached by floodwater. The accumulation of sediments, mainly sand, takes place during the initial stage of a flood. Coarser sediment fractions (medium and fine sands) are deposited closer to the river channel, in the proximal zone of spill-out, while finer fractions (if present) tend to be deposited farther away, in the distal zone of the floodplain (e.g.,

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Section: Figmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Four in one: a new crevasse-splay complex in the middle Miocene of central Poland

Widera,

Dziamara,

Klęsk

et al. 2024

ASGP

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“…Furthermore, gravelly material has rarely been identified in both modern and ancient crevasse splay deposits (e.g., Bristow et al, 1999;Arnaud-Fassetta, 2013;Matsumoto et al, 2016;Burns et al, 2017;Widera et al, 2023)…”

Section: Source Of Sediment Piles (Crevasse Splay Deposits)mentioning

confidence: 99%

“…Deposits formed by levee breaching events are termed crevasse splays, and typically form fan-or lobe-shaped sediment mounds (Smith et al, 1989;Burns et al, 2017;Rahman et al, 2022a). Many studies have been conducted on the structure, size, and morphology of the crevasse This is a non-peer reviewed EarthArXiv preprint 3 splays in order to understand the causes and effects of modern floods and similar ancient deposits preserved in geologic strata (e.g., O'brien and Wells, 1986;Mjøs et al, 1993;Bristow et al, 1999;Pérez-Arlucea and Smith, 1999;Jones and Hajek, 2007;Arnaud-Fassetta, 2013;Burns et al, 2017;Colombera and Mountney, 2021;Rahman et al, 2022a, b;Widera et al, 2023). Although many studies of modern crevasse splays have been conducted in areas where large meandering rivers have developed, most have investigated morphological changes on a scale of several years to several decades (e.g., Bristow et al, 1999;Pérez-Arlucea and Smith, 1999;Farrell, 2001;Buehler et al, 2011;Cahoon et al, 2011;Li and Bristow, 2015;Toonen et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Features of crevasse splay deposits and sedimentary processes associated with levee breaching by the October 2019 flood of the Chikuma River, Central Japan

Yamada¹,

Naruse²,

Kuroda³

et al. 2023

Preprint

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Field investigations and analyses of modern crevasse splay deposits can both elucidate the processes of levee breaching and help to identify past crevasse splay deposits from geologic strata, thereby estimating the magnitudes of ancient river floods. In this study, we studied levee breach processes and crevasse splay deposits in order to determine the distribution characteristics of the inundation area associated with the 2019 flooding of the Chikuma River, Central Japan. The crevasse splay formed by this event can be divided into three regions: proximal, medial, and distal splays. Behind the breached levee, sandy and gravelly sediment piles (proximal splay) formed at both sides of the crevasse channel, whereas sand and mud layers (medial and distal splays) were observed over a wide area within the inundation area, extending beyond the sediment piles. The upstream gravelly sediment pile (proximal splay) was characterized by clearly bounded lower sand and upper gravel layers, reflecting the process of levee breaching: the outer sandy soil of the artificial levee began to be scoured by external erosion, followed by the erosion of the inner gravelly soil. The sedimentary characteristics of the proximal splay deposits appear to have been strongly controlled by the local environment but are useful for inverse analysis of the progressive process of past and future levee breaches. Sandy crevasse splay deposits (medial splay) thinned rapidly away from the breached levee, whereas muddy crevasse splay deposits (distal splay) were thicker at lower elevations, indicating that they formed during the levee breach and stagnant stages, respectively. The distribution of the medial splay (35.7% of the inundation area) was restricted relative to that of the distal splay (~81.7% of the inundation area). This study indicates that it is important to determine the extent of muddy crevasse splay deposits from geologic strata in order to determine the inundation areas of past levee breaches.

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Features of crevasse splay deposits and sedimentary processes associated with levee breaching due to the October 2019 flood of the Chikuma River, Central Japan

Yamada¹,

Naruse²,

Kuroda³

et al. 2023

Nat Hazards

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Distinct types of crevasse splays formed in the area of Middle Miocene mires, central Poland: Insights from geological mapping and facies analysis

Cited by 6 publications

References 82 publications

Four in one: a new crevasse-splay complex in the middle Miocene of central Poland

Four in one: a new crevasse-splay complex in the middle Miocene of central Poland

Features of crevasse splay deposits and sedimentary processes associated with levee breaching by the October 2019 flood of the Chikuma River, Central Japan

Features of crevasse splay deposits and sedimentary processes associated with levee breaching due to the October 2019 flood of the Chikuma River, Central Japan

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