Articles | Volume 2, issue 2
Research article
16 Dec 2020
Research article |  | 16 Dec 2020

Calibrating a long-term meteoric 10Be delivery rate into eroding western US glacial deposits by comparing meteoric and in situ produced 10Be depth profiles

Travis Clow, Jane K. Willenbring, Mirjam Schaller, Joel D. Blum, Marcus Christl, Peter W. Kubik, and Friedhelm von Blanckenburg

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Cited articles

Bacon, A. R., Richter, D. D., Bierman, P. R., and Rood, D. H.: Coupling meteoric 10Be with pedogenic losses of 9Be to improve soil residence time estimates on an ancient North American interfluve, Geology, 40, 847–850,, 2012 
Barg, E., Lal, D., Pavich, M. J., Caffee, M. W., and Southon, J. R.: Beryllium geochemistry in soils; evaluation of 10Be/9Be ratios in authigenic minerals as a basis for age models, Chem. Geol., 140, 237–258,, 1997. 
Blum, J. D. and Erel, Y.: Rb/Sr isotope systematics of a granitic soil chronosequence: The importance of biotite weathering, Geochim. Cosmochim. Ac., 61, 3193–3204,, 1997. 
Borchers, B., Marrero, S., Balco, G., Caffee, M., Goehring, B., Lifton, N., Nishiizumi, K., Phillips, F., Schaefer, J., and Stone, J.: Geological calibration of spallation production rates in the CRONUS-Earth project, Quat. Geochronol., 31, 188–198,, 2016. 
Boschi, V. and Willenbring, J. K.: The role of pH, organic matter composition and mineralogy on the sorption behavior of beryllium, Environ. Chem., 13, 711–722,, 2016a. 
Short summary
Meteoric beryllium-10 concentrations in soil profiles have great capacity to quantify Earth surface processes, such as erosion rates and landform ages. However, determining these requires an accurate estimate of the delivery rate of this isotope to local sites. Here, we present a new method to constrain the long-term delivery rate to an eroding western US site, compare it against existing delivery rate estimates (revealing considerable disagreement between methods), and suggest best practices.