Grain size-dependent 10Be concentrations in alluvial stream sediment of the Huasco Valley, a semi-arid Andes region
Terrestrial cosmogenic nuclide concentrations in sediment are used to quantify mean
denudation rates in catchments. This article explores the differences between the 10 Be
concentration in fine (sand) and in coarse (1–3 or 5–10 cm pebbles) river sediment. Sand
and pebbles were sampled at four locations in the Huasco Valley, in the arid Chilean Andes.
Sand has 10 Be concentrations between 4.8 and 8.3· 10 5 at g− 1, while pebbles have
smaller concentrations between 2.2 and 3.3· 10 5 at g− 1. It appears that the different …
denudation rates in catchments. This article explores the differences between the 10 Be
concentration in fine (sand) and in coarse (1–3 or 5–10 cm pebbles) river sediment. Sand
and pebbles were sampled at four locations in the Huasco Valley, in the arid Chilean Andes.
Sand has 10 Be concentrations between 4.8 and 8.3· 10 5 at g− 1, while pebbles have
smaller concentrations between 2.2 and 3.3· 10 5 at g− 1. It appears that the different …
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