Progress in isotope paleohydrology using lake sediment cellulose |
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| Authors: | Brent B Wolfe Matthew D Falcone Ken P Clogg-Wright Cherie L Mongeon Yi Yi Bronwyn E Brock Natalie A St Amour William A Mark Thomas W D Edwards |
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| Institution: | (1) Department of Geography and Environmental Studies, Wilfrid Laurier University, 75 University Avenue West, Waterloo, Ontario, Canada, N2L 3C5;(2) Department of Earth Sciences, University of Waterloo, Waterloo, Ontario, Canada, N2L 3G1 |
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| Abstract: | Recent advances in sample preparation techniques and mass spectrometry have fostered more routine oxygen isotope analysis
of aquatic cellulose in lake sediment cores, a proxy for lake water oxygen isotope history. These methodological developments
have significantly increased the feasibility of incorporating this approach into high-resolution, multi-site, and multi-proxy
studies, which are frequently necessary to answer complex hydrological, hydroecological and hydroclimatic questions requiring
a paleoenvironmental perspective. Direct translation of lake sediment aquatic cellulose oxygen isotope composition into lake
water oxygen isotope composition offers appreciable opportunity for quantitative paleohydrological reconstructions, as evidenced
by studies conducted over the past 15 years that span Holocene and pre-historical timescales. |
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| Keywords: | Cellulose Oxygen isotope composition Lake sediments Paleohydrology Heavy liquid density-separation CF-IRMS |
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