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Lake sediment analyses

Cameron, NG; Rose, NL; Appleby, PG; Battarbee, RW; Patrick, ST; Flower, RJ; Juggins, S; (1993) Lake sediment analyses. (ECRC Research Report 4 ). UCL Environmental Change Research Centre: London, UK. Green open access

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Following the very successful use of palaeolimnological techniques in studies of acid lakes in North-west Europe in the 1980s the analysis of lake sediment cores from the main sites is one of the central aspects of the ALPE project. The aim of the lake sediment studies was to use carbonaceous particle analysis to assess the degree of atmospheric contamination at each site, and diatom analysis to assess the extent to which acidification had occurred. By selecting similar types of lakes in each region (remote, high altitude, above, treelines and with very low concentrations of base cations) it was hoped that any catchment influences on water quality would be eliminated, the chance of identifying acidified lakes would be maximised and, most importantly, useful comparisons could be made between regions with differing pollution climates. These criteria were necessary for all aspects of the ALPE programme, but for the palaeolimnological work it was also important to find sites with good sediment records, especially since the available financial resources limited analysis to only one lake site in each region. During field work a number of sites were visited and sampled in each region and the final choice of site, in most cases, was made only after preliminary data from all sites were available. In all regions except one, sites were chosen that filled all criteria. The exception was Milchsee (Lago di Latte) in the Italian Tyrol, a remote site, above the tree-line and with a good sediment record but with a relatively high base cation concentration. Data from all sites are presented in this report. We describe the field and laboratory methods used and present for each site core stratigraphy, dating, carbonaceous particle analysis, diatom analysis and pH reconstruction. In addition chironomid analyses of duplicate cores taken at 5 of the 6 sites (0vre Neadalsvatn, Stavsvatn, Paione Superiore, Milchsee and Etang d' Aube) are presented.

Type: Report
Title: Lake sediment analyses
Open access status: An open access version is available from UCL Discovery
Publisher version: https://www.geog.ucl.ac.uk/research/research-centr...
Language: English
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS > Dept of Geography
URI: https://discovery.ucl.ac.uk/id/eprint/10110457
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