Kl. Goodyear et al., A comparison of the geochemistry of Fe-Mn coatings on pebbles and Potamopyrgus (Hydrobia) jenkinsi shells, Allen River, SW England, UK, APPL GEOCH, 15(6), 2000, pp. 725-735
An investigation of the chemistry of surface precipitates on stream pebbles
and Potamopyrgus (Hydrobia)jenkinsi (Smith) shells has been undertaken on
samples collected from a contaminated river in SW England, UK. Samples were
analysed by LA-ICP-AES to evaluate the technique as a suitable method to u
se on small environmental samples, and to determine if the Pb/Fe and Zn/Mn
ratios of the coatings on the two substrates were comparable. The ratios in
the coatings are similar in these samples types, but are generally higher
on the pebble samples. Results have been compared to a previous investigati
on of pebble coating chemistry in the river, and are shown to have the same
spatial distribution but very different absolute values due to changes in
environmental conditions in the river over time. (C) 2000 Elsevier Science
Ltd. All rights reserved.