L.E Frostick
Impact of periodicity on sediment flux in alluvial systems; grain to basin scale
Frostick, L.E; Jones, S.J
Authors
Dr Stuart Jones stuart.jones@durham.ac.uk
Associate Professor
Contributors
Dr Stuart Jones stuart.jones@durham.ac.uk
Editor
L.E Frostick
Editor
Abstract
Periodicity is a common component of many sedimentological processes, but seldom is it considered across all scales of fluvial processes in order to understand the complete impact on sediment supply to basins. Temporal changes in sediment supply within drainage systems and sedimentary basins are a consequence of the inherent instability in transport processes. The causes of fluctuations are of 2 main types: (i) changes in factors endemic to the supply of sediment but which are at least partly independent of erosive forces and (ii) changes in the magnitude of forces available to transport sediment. Fluctuations at spatial scales from grain — through reach — to basin — scales and at temporal scales from minutes to millennia are discussed and evaluated. All fluctuations are reflected in sedimentary deposits in some way. For example, irregular patterns of bed break-up during erosion can generate bedforms that are recorded in deposits, the passage of waves of sediment can cause cycles of incision and aggradation in a reach; large flood events will flush sediment into coastal regions and will be recorded as an identifiable ‘package’ in the deposits. Many models of basin processes and products assume a consistent supply of sediment which is far from the case in nature. One of the challenges in the coming decade is to move away from using long-term averages of sediment supply and to link models directly into geomorphic processes.
Citation
Frostick, L., & Jones, S. (2002). Impact of periodicity on sediment flux in alluvial systems; grain to basin scale. In S. Jones, & L. Frostick (Eds.), . The Geological Society. https://doi.org/10.1144/gsl.sp.2002.191.01.06
Publication Date | Jan 1, 2002 |
---|---|
Deposit Date | Jan 13, 2009 |
Publisher | The Geological Society |
Pages | 81-95 |
Series Number | 191 |
DOI | https://doi.org/10.1144/gsl.sp.2002.191.01.06 |
Additional Information | Geological Society Special Publication ; 191. Sediment Flux to Basins: Causes, Controls and Consequences. Jones, S. J., Frostick, L. E. (eds). |
You might also like
Sedimentary Petrology
(2023)
Book
Interdependence between bacterial EPS and early grain coat development
(2023)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search