Brown, E. T., R. F. Stallard, M. C. Larsen, G. M. Raisbeck, and F. Yiou. 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.
We present a simple method for estimation of long-term mean denudation rates using in situ-produced
cosmogenic 10Be in fluvial sediments. Procedures are discussed to account for the effects of soil bioturbation, mass
wasting and attenuation of cosmic rays by biomass and by local topography. Our analyses of 10Be in quartz from
bedrock outcrops, soils, mass-wasting sites and riverine sediment from the Icacos River basin in the Luquillo
Experimental Forest, Puerto Rico, are used to characterize denudation for major landform elements in that basin.
The 10Be concentration of a discharge-weighted average of size classes of river sediment corresponds to a long-term
average denudation of = 43 m Ma^-1, consistent with mass balance results.