Articles | Volume 6, issue 3
https://doi.org/10.5194/esurf-6-611-2018
https://doi.org/10.5194/esurf-6-611-2018
Research article
 | 
27 Jul 2018
Research article |  | 27 Jul 2018

Temporal variability in detrital 10Be concentrations in a large Himalayan catchment

Elizabeth H. Dingle, Hugh D. Sinclair, Mikaël Attal, Ángel Rodés, and Vimal Singh

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Cited articles

Allen, P. A., Armitage, J. J., Carter, A., Duller, R. A., Michael, N. A., Sinclair, H. D., Whitchurch, A. L., and Whittaker, A. C.: The Qs problem: sediment volumetric balance of proximal foreland basin systems, Sedimentology, 60, 102–130, 2013. a
Andermann, C., Crave, A., Gloaguen, R., Davy, P., and Bonnet, S.: Connecting source and transport: Suspended sediments in the Nepal Himalayas, Earth Planet. Sci. Lett., 351, 158–170, 2012. a
Anders, A. M., Roe, G. H., Hallet, B., Montgomery, D. R., Finnegan, N. J., and Putkonen, J.: Spatial patterns of precipitation and topography in the Himalaya, Geol. S. Am. S., 398, 39–53, 2006. a
Armstrong, R., Raup, B., Khalsa, S., Barry, R., Kargel, J., Helm, C., and Kieffer, H.: GLIMS glacier database, National Snow and Ice Data Center, Boulder, Colorado, USA, 2005. a
Attal, M. and Lavé, J.: Changes of bedload characteristics along the Marsyandi River (central Nepal): Implications for understanding hillslope sediment supply, sediment load evolution along fluvial networks, and denudation in active orogenic belts, Geol. Soc. Am., 398, 143–171, 2006. a
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We present 18 new cosmogenic radionuclide samples collected from modern river sand and dated Holocene terrace and floodplain deposits from the Ganga River at the Himalayan mountain front, which display a notable degree of temporal variability. This variability is explored using field observations and numerical and statistical analysis. We propose that the observed variability is driven by the nature of stochastic inputs of sediment and the evacuation timescales of individual sediment deposits.