Overbank sand deposition in relation to transport volumes during large-magnitude floods in the Dutch sand-bed Rhine river system

Brinke, W.B.M. ten; Schoor, Margriet M.; Sorber, Anne M.; Berendsen, H.

doi:10.1002/(sici)1096-9837(199809)23:9<809::aid-esp890>3.0.co;2-1

Cited by 45 publications

(48 citation statements)

References 17 publications

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“…As mentioned, overbank mud drapes and sand deposition has occurred along the Waal river channel (Ten Brinke et al, 1998) during (extreme) flood events. Away from the river channel the overbank sands occur in the form of sand bars.…”

Section: Discussionmentioning

confidence: 99%

Ground-penetrating radar profiling on embanked floodplains

Bakker¹,

Maljers²,

Weerts³

2007

Netherlands Journal of Geosciences

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The extreme floods of 1993/94 and 1995 have demonstrated that river management is of crucial interest for the Dutch population, of which most live below flood stage level. Middelkoop (1997) has shown how embanked floodplains along the major rivers in the central Netherlands have experienced gradual decrease in accommodation space due to frequent deposition of mud drapes and sand during floods. Middelkoops results were based on the examination of historical maps and geochemical characterization of heavy metals in overbank deposits. In the light of a likely increase in extreme floods in the near future, river management is increasingly dependent on accurate assessment of recent sedimentation rates in the embanked floodplains and the resultant decrease of accommodation space. Assessment of sedimentation rates in embanked floodplains is also of interest for sand and clay exploitation in these areas.In order to develop new research techniques for measuring sedimentation rates on embanked floodplains, an example near Winssen, along the river Waal, was studied. This site was selected because it is (largely) undisturbed and has the availability of historical age control.Following Middelkoops' findings, sedimentation on floodplains is now studied using a combination of geophysical profiling, coring, geochemical analysis and OSL dating. This multidisciplinary approach allows a more comprehensive description and interpretation of overbank sedimentation. The purpose of this paper is to discuss the results of the geophysical profiling. Geological and historical setting of the Rhine-Meuse floodplain near WinssenThe embanked floodplain of Winssen is situated along the river Waal, the major branch of the Rhine (Fig. 1). Between 1050 and 1350 AD the Waal was embanked by man (Pons, 1957) and the original floodplains (Fig. 1) were isolated from the active river. Between the time of the embankment and about 1600 AD, the confined river channel eroded parts of the pre-embankment deposits within the channel between the embankments (Middelkoop, 1997). An additional effect of the embankment A number of radar facies units were recognized. Boreholes were used to relate radar facies units to sedimentary facies and to determine radar velocity. The GPR groundwave is affected by differences in moisture and texture of the top layer and probably interferes with the first subsurface reflector. The architectural elements recognized in the GPR transects confirm earlier reported insights on human-influenced river behaviour. This is testified in the development of sand bars during flood regimes that are probably more widespread than previously established.

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Section: Discussionmentioning

confidence: 99%

Ground-penetrating radar profiling on embanked floodplains

Bakker¹,

Maljers²,

Weerts³

2007

Netherlands Journal of Geosciences

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“…Interpretation The sheet-like form and sharp base of these units combined with the presence of a variety of current-formed structures is suggestive of non-channelized flow (Bridge, 1984;Ten Brinke et al, 1998). The grain size and bedforms indicate that fluvial bedload was being transported in turbulent flow and was deposited as a blanket over floodplain deposits.…”

Section: Facies Association 4: Tabular or Lenticular Sharp-based Sandmentioning

confidence: 99%

Alluvial facies and paleosols in the Cretaceous Nanushuk formation, Kanayut River, North Slope, Alaska, Preliminary results from the 2001 field season

McCarthy¹

2003

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Paleosols are increasingly viewed as an important, if not critical component in nonmarine sequence stratigraphic analyses where they mark interfluve sequence boundaries and provide at least qualitative information on relative rates of accommodation change within intervening alluvial strata. However, the application of detailed paleopedological analyses to nonmarine sequence stratigraphic studies is still relatively rare.This study focuses on alluvial and coastal plain deposits of the Cretaceous Nanushuk Formation exposed in outcrop along the Kanayut River south of the NPRA. During the 2001 field season, this site was logged and sampled for subsequent micromorphological, geochemical and mineralogical analyses. Preliminary observations indicate that pedogenic modification of alluvial deposits is common, however, rapid deposition of sediment and generally wet conditions resulted in a preponderance of weakly-developed and poorly-drained paleosols similar to modern Entisols, Inceptisols, Gleysols and Histosols. Sandstone and mudstone paleosols may contain a few large root traces, sometimes expressed as vertical to subhorizontal coalified structures or as surface cradle knolls, but they maintain evidence of primary stratification and cumulic development. Coalified and carbonaceous root traces, organic fragments, blocky structures and abundant siderite nodules provide further evidence of waterlogged conditions. By combining field observations, paleosols micromorphology, geochemistry and mineralogy with regional stratigraphic information, it is possible to pin-point the exact position of sequence boundaries in nonmarine rocks. Further work is planned in an attempt to better understand the regional distribution of paleosols in the Nanushuk Formation in order to better characterize significant nonmarine depositional hiatuses (sequence boundaries) and Cretaceous high latitude paleoenvironmental conditions.

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“…A folyószabályozások következtében megnövekedett esés és hordalékhozam miatt (Ten Brinke et al 1998), valamint a partbiztosítások és sarkantyúk építését követően (Károlyi 1960, Wallinga et al 2010) a meder közelében felgyorsult az akkumuláció, hiszen ezekben az esetekben az oldalazó erózió megakadályozása miatt a nagyobb akkumulációval jellemzett partok anyaga nem mobilizálódhat. Emellett a hullámtéren lévő hídpillérek hatással vannak az áramlási viszonyokra, lokálisan eróziót és akkumulációt okozhatnak (Brown 1983).…”

Section: Sándor Andreaunclassified

Section: B) áRmentesítés éS Folyószabályozás Hatása Az áRterek Feltölunclassified

“…A sarkantyúkat és kőszórásokat hosszan a folyó mentén létesítik a vízsebesség növelése érdekében (Ten Brinke et al 1998). Így a folyó a szabályozott folyószakaszon gyorsabb, hordalékszállító kapacitása nagyobb, így az akkumuláció mértéke is csökkenhet, hiszen nem csökken a vízsebesség a kritikus érték alá (Ten Brinke et al 1998, Kroes és Hupp 2010. Azt is megfigyelték, hogy a folyóvíz a beavatkozás-mentes, természetes folyószakaszhoz érve az ártéri formákat szabadon építi és rombolja, így ezeken a szakaszokon nagyobb lesz a vízfolyás üledékhozama, és ezáltal az ártéren lerakódott üledék vastagsága is (Károlyi 1960, Kroes és Hupp 2010.…”

Section: B) áRmentesítés éS Folyószabályozás Hatása Az áRterek Feltölunclassified

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A hullámtér-feltöltődés folyamatának vizsgálata a Tisza középső és alsó szakaszán

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Overbank sand deposition in relation to transport volumes during large-magnitude floods in the Dutch sand-bed Rhine river system

Cited by 45 publications

References 17 publications

Ground-penetrating radar profiling on embanked floodplains

Ground-penetrating radar profiling on embanked floodplains

Alluvial facies and paleosols in the Cretaceous Nanushuk formation, Kanayut River, North Slope, Alaska, Preliminary results from the 2001 field season

A hullámtér-feltöltődés folyamatának vizsgálata a Tisza középső és alsó szakaszán

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