Ongoing paleoenvironmental research in the Fotsch Valley – first oxygen isotope records derived from hemicellulose sugars of two subalpine mires
O 3.1 in Earth System Science and Reconstruction
28.09.2023, 09:30-09:45, H 36
Within the “Ullafelsen” project, our working group focused on geoarchaeological research in the Fotsch Valley (Stubai Alps, Austria) (Zech et al., 2021). Besides soil profiles at the Ullafelsen itself, two peat archives, the "Potsdamer Hütte Mire" (1970 m a.s.l.) and the "Schwarzmoos" (2010 m a.s.l.), offer great potential for paleoenvironment- and climate reconstruction, as their peat formation started during the Early Holocene. Focusing mainly on geoarchaeology and human settlement history of the Fotsch Valley, Lerch et al. (2023) presented the first results of elemental, biomarker, palynological and stable isotope analyses for the "Potsdamer Hütte Mire". Ongoing paleoenvironmental research focusses on reconstructing the paleoclimate using the stable oxygen isotopic composition of hemicellulose-derived sugar biomarkers (δ18Osugars).
Lerch et al., 2023. Holocene landscape evolution, palaeoclimate and human impact in the Fotsch Valley, Stubai Alps, Austria: interrogating biomarkers, stable isotopes, macrofossils and palynological indicators from a subalpine mire archive. The Holocene, 0(0). https://doi.org/10.1177/09596836231176485.
Zech et al., 2021. Revisiting the subalpine Mesolithic site Ullafelsen in the Fotsch Valley, Stubai Alps, Austria – new insights into pedogenesis and landscape evolution from leaf-wax-derived n-alkanes, black carbon and radiocarbon dating. E&G Quaternary Sci. J., 70(2), 171-186. https://doi.org/10.5194/egqsj-70-171-2021.
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