Denudation rates determined from the accumulation of in situ-produced 10Be in the luquillo experimental forest, Puerto Rico

Earth and Planetary Science Letters
By: , and 

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Abstract

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. 

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Denudation rates determined from the accumulation of in situ-produced 10Be in the luquillo experimental forest, Puerto Rico
Series title Earth and Planetary Science Letters
DOI 10.1016/0012-821X(94)00249-X
Volume 129
Issue 1
Year Published 1995
Language English
Publisher BioOne
Contributing office(s) Caribbean Water Science Center
Description 10 p.
First page 193
Last page 202
Online Only (Y/N) N
Additional Online Files (Y/N) N