Paleoclimate reconstruction of the last 36 kyr based on branched glycerol dialkyl glycerol tetraethers in the Padul palaeolake record (Sierra Nevada, southern Iberian Peninsula)
Publication date
2022-04-01
Authors
Rodrigo-Gámiz, M.
García-Alix, A.
Jiménez-Moreno, G.
Ramos-Román, M.J.
Camuera, J.
Toney, J.L.
Sachse, D.
Anderson, R. Scott
Sinninghe Damsté, J.S.
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Article
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Abstract
Quantitative continental climate reconstructions covering the last glacial cycle from the Iberian Peninsula are scarce. In order to fill this gap, we obtained for the first time a high-resolution mean annual air temperature (MAAT) record based on the distribution of specific bacterial membrane lipids (i.e., branched glycerol dialkyl glycerol tetraethers; brGDGTs) from the last 36.0–4.7 kyr palaeolake record recovered by the Padul-15-05 sedimentary core (Padul, Sierra Nevada, southern Iberia). The fractional abundance of the three major groups of GDGTs present in the Padul sediments, GDGT-0, crenarchaeol and the summed brGDGTs, is comparable with that of other shallow and small (
Keywords
GDGTs distribution, Mean annual air temperature reconstruction, pH reconstruction, Continental sediment record, Southern Spain, Heinrich stadials, Dansgaard–Oeschger events
Citation
Rodrigo-Gámiz, M, García-Alix, A, Jiménez-Moreno, G, Ramos-Román, M J, Camuera, J, Toney, J L, Sachse, D, Anderson, R S & Sinninghe Damsté, J S 2022, 'Paleoclimate reconstruction of the last 36 kyr based on branched glycerol dialkyl glycerol tetraethers in the Padul palaeolake record (Sierra Nevada, southern Iberian Peninsula)', Quaternary Science Reviews, vol. 281, 107434, pp. 1-13. https://doi.org/10.1016/j.quascirev.2022.107434