Articles | Volume 6, issue 1
https://doi.org/10.5194/esurf-6-121-2018
https://doi.org/10.5194/esurf-6-121-2018
Research article
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05 Mar 2018
Research article | Highlight paper |  | 05 Mar 2018

U–Th and 10Be constraints on sediment recycling in proglacial settings, Lago Buenos Aires, Patagonia

Antoine Cogez, Frédéric Herman, Éric Pelt, Thierry Reuschlé, Gilles Morvan, Christopher M. Darvill, Kevin P. Norton, Marcus Christl, Lena Märki, and François Chabaux

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Cited articles

Ackerer, J., Chabaux, F., Van der Woerd, J., Viville, D., Pelt, E., Kali, E., Lerouge, C., Ackerer, P., di Chiara Roupert, R., and Négrel, P.: Regolith evolution on the millennial timescale from combined U–Th–Ra isotopes and in situ cosmogenic 10Be analysis in a weathering profile (Strengbach catchment, France), Earth Planet. Sc. Lett., 453, 33–43, 2016. a
Andersen, M. B., Vance, D., Keech, A., Rickli, J., and Hudson, G.: Estimating U fluxes in a high-latitude, boreal post-glacial setting using U-series isotopes in soils and rivers, Chem. Geol., 354, 22–32, 2013. a
Anderson, R., Dühnforth, M., Colgan, W., and Anderson, L.: Far-flung moraines: Exploring the feedback of glacial erosion on the evolution of glacier length, Geomorphology, 179, 269–285, 2012. a
Anderson, S.: Glaciers show direct linkage between erosion rate and chemical weathering fluxes, Geomorphology, 67, 147–157, 2005. a, b
Anderson, S., Drever, J., and Humphrey, N.: Chemical weathering in glacial environments, Geology, 25, 399–402, 1997. a
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Short summary
Sediments produced by glaciers are transported by rivers and wind toward the ocean. During their journey, these sediments are weathered, and we know that this has an impact on climate. One key factor is time, but the duration of this journey is largely unknown. We were able to measure the average time that sediment spends only in the glacial area. This time is 100–200 kyr, which is long and allows a lot of processes to act on sediments during their journey.