XRF measurements of core Sh-II from Lake Shira

Results of non-destructive X-ray fluorescence (XRF) measurements carried out at 200 μm resolution directly on the cleaned split surfaces of sediment cores Sh-II-1 and Sh-II-2 from Lake Shira (54°30′32.42″N, 90°11′28.41″E). Measurements were performed using an XRF core scanner at the Helmholtz Centre for Geosciences in Potsdam (Germany), employing a Rh X-ray source operated at 30 kV and 60 mA. This dataset is a supplement to the following publication: Leipe, C., Handfried, D., Long, T., Heinrich, I., Hoelzmann, P., Mingram, J., Tjallingii, R., Vrijmoed, J.C., Wagner, M., Tarasov, P.E., 2025. Microfacies analysis and varve-based chronology reveal a variable 14C reservoir effect in Lake Shira, northern Inner Asia, over the past 2500 years. Quaternary Science Advances 19, 100299. https://doi.org/10.1016/j.qsa.2025.100299