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Lateral sediment sources and knickzones as controls on spatio-temporal variations of sediment transport in an Alpine river
- Source :
- Sedimentology, Bekaddour, T, Schlunegger, F, Attal, M, Norton, K P & Föllmi, K (ed.) 2013, ' Lateral sediment sources and knickzones as controls on spatio-temporal variations of sediment transport in an Alpine river ', Sedimentology, vol. 60, no. 1, pp. 342-357 . https://doi.org/10.1111/sed.12009
- Publication Year :
- 2013
- Publisher :
- Wiley, 2013.
-
Abstract
- Modern mixed alluvial-bedrock channels in mountainous areas provide natural laboratories for understanding the time scales at which coarse-grained material has been entrained and transported from their sources to the adjacent sedimentary sink, where these deposits are preserved as conglomerates. This article assesses the shear stress conditions needed for the entrainment of the coarse-bed particles in the Glogn River that drains the 400 km2 Val Lumnezia basin, eastern Swiss Alps. In addition, quantitative data are presented on sediment transport patterns in this stream. The longitudinal stream profile of this river is characterized by three ca 500 m long knickzones where channel gradients range from 0·02 to 0·2 m m−1, and where the valley bottom confined into a
- Subjects :
- Hydrology
Return period
geography
geography.geographical_feature_category
010504 meteorology & atmospheric sciences
Stratigraphy
Geology
STREAMS
Structural basin
010502 geochemistry & geophysics
01 natural sciences
Sink (geography)
Sedimentary rock
Entrainment (chronobiology)
Geomorphology
Sediment transport
0105 earth and related environmental sciences
Stream capacity
Subjects
Details
- ISSN :
- 00370746
- Volume :
- 60
- Database :
- OpenAIRE
- Journal :
- Sedimentology
- Accession number :
- edsair.doi.dedup.....b16bbf6e89038005d11357c9277f5c3d