Data Supplement to: Cosmogenic 10Be in river sediment: where grain size matters and why

van Dongen, Renee; Scherler, Dirk; Wittmann, Hella; von Blanckenburg, Friedhelm;

2019 || GFZ Data Services

Concentrations of in-situ-produced cosmogenic 10Be in river sediment are widely used to estimate catchment-average denudation rates. Typically, the 10Be concentrations are measured in the sand fraction of river sediment. However, the grain size of bedload sediment in most bedrock rivers covers a much wider range. Where 10Be concentrations depend on grain size, denudation rate estimates based on the sand fraction alone are potentially biased. To date, knowledge about catchment attributes that may induce grain-size-dependent 10Be concentrations is incomplete or has only been investigated in modelling studies. Here we present an empirical study on the occurrence of grain-size-dependent 10Be concentrations and the potential controls of hillslope angle, precipitation, lithology, and abrasion.
We first conducted a study focusing on the sole effect of precipitation in four granitic catchments located on a climate gradient in the Chilean Coastal Cordillera. We found that observed grain size dependencies of 10Be concentrations in the most-arid and most-humid catchments could be explained by the effect of precipitation on both the scouring depth of erosion processes and the depth of the mixed soil layer. Analysis of a global dataset of published 10Be concentrations in different grain sizes (n=73 catchments) – comprising catchments with contrasting hillslope angles, climate, lithology, and catchment size – revealed a similar pattern. Lower 10Be concentrations in coarse grains (defined as “negative grain size dependency”) emerge frequently in catchments which likely have thin soil and where deep-seated erosion processes (e.g. landslides) excavate grains over a larger depth interval. These catchments include steep (> 25°) and humid catchments (> 2000mm yr-1). Furthermore, we found that an additional cause of negative grain size dependencies may emerge in large catchments with weak lithologies and long sediment travel distances (> 2300–7000 m, depending on lithology) where abrasion may lead to a grain size distribution that is not representative for the entire catchment. The results of this study can be used to evaluate whether catchment-average denudation rates are likely to be biased in particular catchments.
Samples from the Chilean Coastal Cordillera were processed in the Helmholtz Laboratory for the Geochemistry of the Earth Surface (HELGES). 10Be/9Be ratios were measured at the University of Cologne and normalized to the KN01-6-2 and KN01-5-3 standards. Denudation rates were calculated using a time-independent scaling scheme according to Lal (1991) and Stone (2002) (St scaling scheme) and the SLHL production rate of 4.01 at g-1 yr-1 as reported by Phillips et al. (2016)
The global compilation exists of studies that measured 10Be concentrations in different grain sizes from the same sample location. We only included river basins of <5000 km2 which measured 10Be concentrations in at least one sand-sized fraction <2 mm and at least one coarser fraction >2 mm. Catchment parameters have been recalculated using a 90-m SRTM DEM.
The data are presented in Excel and csv tables. Table S1 describes the characteristics of the samples catchments, Table S2 includes the grain size dependent 10Be-concentrations measured during this study and Table 3 the global compilation of grain size dependent 10Be-concentrations. All samples of this study (the Chilean Coastal Cordillera) are assigned with International Geo Sample Numbers (IGSN). The IGSN links are included in Table S2 and in the Related References Section on the DOI Landing Page. The data are described in detail in the data description file and in van Dongen et al. (2018) to which they are supplementary material to.

Originally assigned keywords

Corresponding MSL vocabulary keywords

MSL enriched keywords

MSL enriched sub domains
  • geochemistry
  • microscopy and tomography
  • rock and melt physics
  • analogue modelling of geologic processes
Source http://dx.doi.org/10.5880/gfz.3.3.2019.002
Source publisher GFZ Data Services
DOI 10.5880/gfz.3.3.2019.002
Authors
  • van Dongen, Renee
  • 0000-0002-7246-511X
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;

  • Scherler, Dirk
  • 0000-0003-3911-2803
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;

  • Wittmann, Hella
  • 0000-0002-1252-7059
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;

  • von Blanckenburg, Friedhelm
  • 0000-0002-2964-717X
  • GFZ German Research Centre for Geosciences, Potsdam, Germany; Freie Universität Berlin, Berlin, Germany;
Contributors
  • van Dongen, Renee
  • ContactPerson
  • 0000-0002-7246-511X
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;

  • van Dongen, Renee
  • DataCollector
  • 0000-0002-7246-511X
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;

  • van Dongen, Renee
  • Producer
  • 0000-0002-7246-511X
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;

  • Scherler, Dirk
  • ContactPerson
  • 0000-0003-3911-2803
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;

  • Scherler, Dirk
  • DataCurator
  • 0000-0003-3911-2803
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;

  • Scherler, Dirk
  • ProjectLeader
  • 0000-0003-3911-2803
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;

  • Wittmann, Hella
  • ProjectMember
  • 0000-0002-1252-7059
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;

  • von Blanckenburg, Friedhelm
  • ProjectManager
  • 0000-0002-2964-717X
  • GFZ German Research Centre for Geosciences, Potsdam, Germany; Freie Universität Berlin, Berlin, Germany;
References
  • Aguilar, G., Carretier, S., Regard, V., Vassallo, R., Riquelme, R., & Martinod, J. (2014). Grain size-dependent 10Be concentrations in alluvial stream sediment of the Huasco Valley, a semi-arid Andes region. Quaternary Geochronology, 19, 163–172. https://doi.org/10.1016/j.quageo.2013.01.011
  • 10.1016/j.quageo.2013.01.011
  • HasPart

  • Belmont, P., Pazzaglia, F. J., & Gosse, J. C. (2007). Cosmogenic 10Be as a tracer for hillslope and channel sediment dynamics in the Clearwater River, western Washington State. Earth and Planetary Science Letters, 264(1–2), 123–135. https://doi.org/10.1016/j.epsl.2007.09.013
  • 10.1016/j.epsl.2007.09.013
  • HasPart

  • Brown, E. T., Stallard, R. F., Larsen, M. C., Raisbeck, G. M., & Yiou, F. (1995). Denudation rates determined from the accumulation of in situ-produced 10Be in the luquillo experimental forest, Puerto Rico. Earth and Planetary Science Letters, 129(1–4), 193–202. https://doi.org/10.1016/0012-821x(94)00249-x
  • 10.1016/0012-821X(94)00249-X
  • HasPart

  • Carretier, S., Regard, V., Vassallo, R., Aguilar, G., Martinod, J., Riquelme, R., Christophoul, F., Charrier, R., Gayer, E., Farías, M., Audin, L., & Lagane, C. (2015). Differences in 10Be concentrations between river sand, gravel and pebbles along the western side of the central Andes. Quaternary Geochronology, 27, 33–51. https://doi.org/10.1016/j.quageo.2014.12.002
  • 10.1016/j.quageo.2014.12.002
  • HasPart

  • Clapp, E. M., Bierman, P. R., & Caffee, M. (2002). Using 10Be and 26Al to determine sediment generation rates and identify sediment source areas in an arid region drainage basin. Geomorphology, 45(1–2), 89–104. https://doi.org/10.1016/s0169-555x(01)00191-x
  • 10.1016/S0169-555X(01)00191-X
  • HasPart

  • Derrieux, F., Siame, L. L., Bourlès, D. L., Chen, R.-F., Braucher, R., Léanni, L., Lee, J.-C., Chu, H.-T., & Byrne, T. B. (2014). How fast is the denudation of the Taiwan mountain belt? Perspectives from in situ cosmogenic 10Be. Journal of Asian Earth Sciences, 88, 230–245. https://doi.org/10.1016/j.jseaes.2014.03.012
  • 10.1016/j.jseaes.2014.03.012
  • HasPart

  • HasPart

  • Heimsath, A. M., Fink, D., & Hancock, G. R. (2009). The ‘humped’ soil production function: eroding Arnhem Land, Australia. Earth Surface Processes and Landforms, 34(12), 1674–1684. Portico. https://doi.org/10.1002/esp.1859
  • 10.1002/esp.1859
  • HasPart

  • Matmon, A. (2003). Erosion of an Ancient Mountain Range, The Great Smoky Mountains, North Carolina and Tennessee. American Journal of Science, 303(9), 817–855. https://doi.org/10.2475/ajs.303.9.817
  • 10.2475/ajs.303.9.817
  • HasPart

  • Palumbo, L., Hetzel, R., Tao, M., & Li, X. (2010). Topographic and lithologic control on catchment-wide denudation rates derived from cosmogenic 10Be in two mountain ranges at the margin of NE Tibet. Geomorphology, 117(1–2), 130–142. https://doi.org/10.1016/j.geomorph.2009.11.019
  • 10.1016/j.geomorph.2009.11.019
  • HasPart

  • Puchol, N., Lavé, J., Lupker, M., Blard, P.-H., Gallo, F., & France-Lanord, C. (2014). Grain-size dependent concentration of cosmogenic 10Be and erosion dynamics in a landslide-dominated Himalayan watershed. Geomorphology, 224, 55–68. https://doi.org/10.1016/j.geomorph.2014.06.019
  • 10.1016/j.geomorph.2014.06.019
  • HasPart

  • Reinhardt, L. J., Hoey, T. B., Barrows, T. T., Dempster, T. J., Bishop, P., & Fifield, L. K. (2006). Interpreting erosion rates from cosmogenic radionuclide concentrations measured in rapidly eroding terrain. Earth Surface Processes and Landforms, 32(3), 390–406. Portico. https://doi.org/10.1002/esp.1415
  • 10.1002/esp.1415
  • HasPart

  • Safran, E. B., Bierman, P. R., Aalto, R., Dunne, T., Whipple, K. X., & Caffee, M. (2005). Erosion rates driven by channel network incision in the Bolivian Andes. Earth Surface Processes and Landforms, 30(8), 1007–1024. Portico. https://doi.org/10.1002/esp.1259
  • 10.1002/esp.1259
  • HasPart

  • HasPart

  • van Dongen, R., Scherler, D., Wittmann, H., & von Blanckenburg, F. (2019). Cosmogenic 10Be in river sediment: where grain size matters and why. Earth Surface Dynamics, 7(2), 393–410. https://doi.org/10.5194/esurf-7-393-2019
  • 10.5194/esurf-7-393-2019
  • IsSupplementTo

  • IsDerivedFrom

  • IsDerivedFrom
Contact
  • von Blanckenburg, Friedhelm
  • GFZ German Research Centre for Geosciences, Potsdam, Germany; Freie Universität Berlin, Berlin, Germany;

  • von Blanckenburg, Friedhelm
  • GFZ German Research Centre for Geosciences, Potsdam, Germany; Freie Universität Berlin, Berlin, Germany;
Citation van Dongen, R., Scherler, D., Wittmann, H., & von Blanckenburg, F. (2019). Data Supplement to: Cosmogenic 10Be in river sediment: where grain size matters and why [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.3.3.2019.002
Geo location(s)
  • Parque Nacional Pan de Azúcar (PA)
  • Reserva Natural Santa Gracia (SG)
  • Parque Nacional La Campana (LC)
  • Parque Nacional Nahuelbuta (NB)
Spatial coordinates
  • eLong -70.5467
  • nLat -26.119
  • sLat -26.108
  • wLong -70.5503

  • eLong -71.1649
  • nLat -29.7708
  • sLat -29.7554
  • wLong -71.1796

  • eLong -71.0087
  • nLat -32.9715
  • sLat -32.9455
  • wLong -71.1796

  • eLong -72.0007
  • nLat -37.7843
  • sLat -37.8278
  • wLong -73.0382