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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

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Record number 367117
Title Middle Holocene avulsion-belt deposits in the central Rhine-Meuse delta, the Netherlands
Author(s) Makaske, B.; Berendsen, H.J.A.; Ree, M.H.M.
Source Journal of Sedimentary Research Section A-Sedimentary Petrology and Process 77 (2007)4. - ISSN 1527-1404 - p. 110 - 123.
Department(s) Landscape Centre
Publication type Refereed Article in a scientific journal
Publication year 2007
Keyword(s) saskatchewan river - cumberland marshes - fluvial systems - canada - classification - evolution
Abstract The Schoonrewoerd fluvial system in the central Rhine¿Meuse delta was active as a Rhine distributary between 3900 and 3800 14C years BP. Based on planform patterns, cross-sectional facies architecture, reconstructed paleodischarge, and its short period of activity, the Schoonrewoerd fluvial system is interpreted to represent a failed avulsion. The Schoonrewoerd system consists of a complex of (ribbon) channel sand bodies encased in a lens of clayey deposits, and it can be traced for more than 35 km in a downstream direction. Prominent features of the system are longitudinal facies-architecture change, with channel sand-body width/thickness ratio decreasing downstream from ~ 40 to 5, and high lateral facies variability. Multiple anastomosing sand bodies occur in its upper and middle reaches. Paleodischarge reconstruction indicates that the Schoonrewoerd system was only a minor distributary within the Rhine¿Meuse deltaic system. Specific stream power in the lower reach is estimated to have been low (0.5 to 1.8 W/m2). The short period of activity of the Schoonrewoerd system suggests that very high floodplain sedimentation rates were associated with the avulsion process, with the formation of meters-thick fine-grained sedimentary successions in ~ 100 years. The facies architecture of the short-lived Schoonrewoerd system is interpreted to reflect the first stages of avulsion (broadly analogous to the modern Saskatchewan River avulsion in Canada; Smith et al. 1989, Sedimentology, v. 36, p. 1¿23), having escaped from later erosion by a more mature channel belt. Many other systems (often partly eroded) with similar facies architecture exist in the west-central Rhine¿Meuse delta, suggesting that "avulsion-belt deposits" are a major component of the Holocene delta deposits. The facies-architecture model of the Schoonrewoerd avulsion-belt deposits presented in this paper may provide clues for the interpretation of fine-grained sedimentary successions in ancient fluviodeltaic deposits.
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