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Microfacies description linked to the magnetic and non-magnetic proxy as a promising environmental tool: Case study from alluvial deposits of the Nile river
- Lisa, L., Lisy, P., Chadima, M., Čejchan, P., Bajer, A., Cilek, V., Sukova, L., Schnabl, P.
- Quaternary international 2012 v.266 pp. 25-33
- alluvium, case studies, cataract, geomorphology, humans, magnetic properties, rivers, Nile River, Sudan
- Alluvial deposits within the Sabaloka Gorge and the Sixth Cataract, the Nile River, Sudan, represent a set of deposits with a high lithological variability. This is due to the geomorphology and short-time and intensive flood events resulting in aggradation and erosion of the alluvial zone. Human maintenance of the alluvial zone also plays a role. Therefore, these sediments seem to be ideal for a methodological case study to show how the lithological facies differ depending on the sedimentary dynamics of the river. Non-magnetic proxies together with TOC values depend on magnetic properties characterized by magnetic susceptibility and its frequency dependence.