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Plikk, Anna; Engels, Stefan; Fernández-Fernández, Maria; Katrantsiotis, Christos; Kylander, Malin E; Löwemark, Ludvig; Salonen, Sakari; Väliranta, Minna; Helmens, Karin (2025): Itrax data for the Eemian sediment sequence retrieved from Sokli (Finland) in 2010 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.979955 (DOI registration in progress)

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Published: 2025-04-09

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Abstract:
This dataset provides Itrax data for the Eemian sediment sequence retrieved from Sokli (Finland) in 2010. Itrax values (counts per second) for selected elements are presented against both depth (m) and age (ka BP). Total number of kilocounts per step (kcps), MSE (mean square error), coherent and incoherent scattering data is presented as well. The Itrax dataset was used to provide information on Eemian landscape dynamics at Sokli (Plikk et al., 2016; Kylander et al., 2018). Elemental peak areas in the sediment succession were analysed with the X-ray fluorescence (XRF) core scanner at the Department of Geological Sciences, Stockholm University. The cores were scanned using a molybdenum-tube at 2 mm resolution (voltage 30 kV, current 45 mA) and 30 s measuring time. The peak areas for each step have been normalised by the total number of counts (kcps) for that step, in order to remove various instrumental effects. A previous version of this dataset can be found on the Bolin Climate Centre database (https://bolin.su.se/data/kylander-2018-sokli-1).
Keyword(s):
Chironomids; C/N; Diatom; Eemian; Finland; Itrax; loss on ignition; macrobotanical remains; MIS 5e; n-alkanes; non-pollen palynomorphs; Pollen; Sokli; stabe isotopes
Related to:
Helmens, Karin F; Salonen, J Sakari; Plikk, Anna; Engels, Stefan; Väliranta, Minna; Kylander, Malin E; Brendryen, J; Renssen, Hans (2015): Major cooling intersecting peak Eemian Interglacial warmth in northern Europe. Quaternary Science Reviews, 122, 293-299, https://doi.org/10.1016/j.quascirev.2015.05.018
Katrantsiotis, Christos; Norström, Elin; Smittenberg, Rienk H; Salonen, J Sakari; Plikk, Anna; Helmens, Karin (2021): Seasonal variability in temperature trends and atmospheric circulation systems during the Eemian (Last Interglacial) based on n-alkanes hydrogen isotopes from Northern Finland. Quaternary Science Reviews, 273, 107250, https://doi.org/10.1016/j.quascirev.2021.107250
Plikk, Anna (2018): The Eemian Interglacial at Sokli, northern Finland [dissertation]. Stockholm University
Plikk, Anna; Engels, Stefan; Luoto, Tomi P; Nazarova, Larisa B; Salonen, J Sakari; Helmens, Karin F (2019): Chironomid-based temperature reconstruction for the Eemian Interglacial (MIS 5e) at Sokli, northeast Finland. Journal of Paleolimnology, 61(3), 355-371, https://doi.org/10.1007/s10933-018-00064-y
Plikk, Anna; Risberg, Jan; Helmens, Karin F (2021): Diatom assemblages from an Eemian palaeolake in Northern Europe with morphological observations of rare Aulacoseira sp. resting spores. Diatom Research, 36(4), 313-321, https://doi.org/10.1080/0269249X.2021.2001381
Salonen, J Sakari; Helmens, Karin F; Brendryen, Jo; Kuosmanen, Niina; Väliranta, Minna; Goring, Simon J; Korpela, Mikko; Kylander, Malin E; Philip, Annemarie; Plikk, Anna; Renssen, Hans; Luoto, Miska (2018): Abrupt high-latitude climate events and decoupled seasonal trends during the Eemian. Nature Communications, 9(1), 2851, https://doi.org/10.1038/s41467-018-05314-1
References:
Kylander, Malin E; Plikk, Anna; Rydberg, Johan; Löwemark, Ludvig; Salonen, J Sakari; Fernández-Fernández, Maria; Helmens, Karin (2018): New insights from XRF core scanning data into boreal lake ontogeny during the Eemian (Marine Isotope Stage 5e) at Sokli, northeast Finland. Quaternary Research, 89(1), 352-364, https://doi.org/10.1017/qua.2017.84
Plikk, Anna; Helmens, Karin F; Fernández-Fernández, Maria; Kylander, Malin E; Löwemark, Ludvig; Risberg, Jan; Salonen, J Sakari; Väliranta, Minna; Weckström, Jan (2016): Development of an Eemian (MIS 5e) Interglacial palaeolake at Sokli (N Finland) inferred using multiple proxies. Palaeogeography, Palaeoclimatology, Palaeoecology, 463, 11-26, https://doi.org/10.1016/j.palaeo.2016.09.008
Funding:
Academy of Finland, grant/award no. 1278692
Academy of Finland, grant/award no. 1310649
Coverage:
Latitude: 67.800278 * Longitude: 29.300278
Date/Time Start: 2010-02-15T08:00:00 * Date/Time End: 2010-02-15T17:00:00
Minimum DEPTH, sediment/rock: 16.00125000 m * Maximum DEPTH, sediment/rock: 24.99983003 m
Event(s):
Sokli_2010/4 * Latitude: 67.800278 * Longitude: 29.300278 * Date/Time Start: 2010-02-15T08:00:00 * Date/Time End: 2010-02-15T17:00:00 * Elevation: 220.0 m * Method/Device: Rotary-percussion drill (RPDRILL)
Comment:
Further funding was provided by Swedish Nuclear Fuel and Waste Management Company (SKB) and Bolin Centre for Climate Research (Stockholm University).
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
33796 data points

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