Articles | Volume 13, issue 20
Biogeosciences, 13, 5719–5738, 2016
https://doi.org/10.5194/bg-13-5719-2016
Biogeosciences, 13, 5719–5738, 2016
https://doi.org/10.5194/bg-13-5719-2016

Research article 17 Oct 2016

Research article | 17 Oct 2016

Examining the provenance of branched GDGTs in the Tagus River drainage basin and its outflow into the Atlantic Ocean over the Holocene to determine their usefulness for paleoclimate applications

Lisa Warden et al.

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Cited articles

Abrantes, F., Lebreiro, S., Rodrigues, T., Gil, I., Bartels-Jónsdóttir, H., Oliveira, P., Kissel, C., and Grimalt, J. O.: Shallow-marine sediment cores record climate variability and earthquake activity off Lisbon (Portugal) for the last 2000 years, Quaternary Sci. Rev., 24, 2477–2494, 2005.
Abrantes, F., Lopes, C., Rodrigues, T., Gil, I., Witt, L., Grimalt, J., and Harris, I.: Proxy calibration to instrumental data set: Implications for paleoceanographic reconstructions, Geochem. Geophy. Geosy., 10, Q09U07, https://doi.org/10.1029/2009GC002604, 2009.
Andreu, L., GutiéRrez, E., Macias, M., Ribas, M., Bosch, O., and Camarero, J. J.: Climate increases regional tree-growth variability in Iberian pine forests, Glob. Change Biol., 13, 1–12, 2007.
Bartels-Jónsdóttir, H. B., Knudsen, K. L., Abrantes, F., Lebreiro, S., and Eiríksson, J.: Climate variability during the last 2000 years in the Tagus Prodelta, western Iberian Margin: Benthic foraminifera and stable isotopes, Mar. Micropaleontol., 59, 83–103, 2006.
Bartels-Jonsdottir, H. B., Voelker, A. H. L., Knudsen, K. L., and Abrantes, F.: Twentieth-century warming and hydrographical changes in the Tagus Prodelta, eastern North Atlantic, Holocene, 19, 369–380, 2009.
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Short summary
Enhanced analytical techniques were applied to characterize fossilized microbial cell membrane lipids from samples in the Tagus River basin spanning the last 6000 years. Using the novel methods and calibration, the pH estimates were improved upon, and this study reveals new factors that should be considered when using this proxy as well as affirms the importance of examining the provenance of these lipids before applying them for paleoclimate reconstructions.
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