Journal article
Leaf water deuterium enrichment shapes leaf wax n-alkane δD values of angiosperm plants II: Observational evidence and global implications
A Kahmen, B Hoffmann, E Schefuß, SK Arndt, LA Cernusak, JB West, D Sachse
Geochimica Et Cosmochimica Acta | Published : 2013
Abstract
Leaf wax n-alkanes are long-chain hydrocarbons that can persist in sedimentary records over geological timescales. Since their hydrogen isotopic composition (expressed as a δD value) can be correlated to the δD values of precipitation, leaf wax n-alkane δD values have been advocated as new and powerful proxies for paleohydrological research. The exact type of hydrological information that is recorded in the δD values of leaf wax n-alkanes remains, however, unclear. In a companion paper we provide experimental evidence showing that the δD values of leaf wax n-alkanes of angiosperm plants grown under controlled environmental conditions not only reflect δD values of precipitation - as has often..
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Awarded by Charles Darwin University
Funding Acknowledgements
The authors would like to thank John Hayes and Francesca McInerney for valuable comments on a previous version of this manuscript. We also thank Edith Huber and Alison O'Keefe for help in the field along the North Australian Transect, as well as Annika Ackermann and Roland Werner for analyzing the liquid water samples at ETH Zurich. AK was supported by an ERC Starting Grant (279518 COSIWAX). DS was supported by an Emmy-Noether Research grant by the German Science Foundation (DFG SA-1889/1-1). ES was supported by the German Science Foundation (DFG SCHE-903/8). LAC was supported by a Discovery Grant (DP0771427) and a Future Fellowship (FT100100329) from the Australian Research Council, and by a project grant from Charles Darwin University.