Helmens, Karin; Engels, Stefan; Katrantsiotis, Christos; Kuosmanen, Niina; Luoto, Tomi P; Salonen, J Sakari; Väliranta, Minna (2025): Loss-on-ignition of the MIS-5a sediment sequence from Sokli (Finland) in 2010 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983897
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Published: 2025-07-18 • DOI registered: 2025-08-16
Abstract:
This dataset provides loss-on-ignition (LOI) data for the MIS-5a sediment sequence retrieved from Sokli (Finland) in 2010. LOI values are expressed as percentages and presented against depth (m). The LOI dataset was used to provide information on MIS-5a landscape dynamics at Sokli (Helmens et al., 2021). A total of 24 samples were analysed for LOI. Samples of 1.5 to 10.1 g wet weight (average=4.1 g) were heated to 105°C until a constant (dry) weight was achieved. Thereafter, samples were placed in a furnace at 550 °C for 4 hrs and at 950 °C for 2 hours. Loss-on-ignition was calculated by comparing the dry weight of the samples before and after combustion following Heiri et al. (2001) and results are expressed as a percentage. The analyses were performed in the laboratories of the University of Helsinki, Finland.
Keyword(s):
Related to:
Helmens, Karin F; Katrantsiotis, Christos; Kuosmanen, Niina; Luoto, Tomi P; Salonen, J Sakari; Väliranta, Minna (2021): Prolonged interglacial warmth during the Last Glacial in northern Europe. Boreas, 50(2), 331-350, https://doi.org/10.1111/bor.12495
References:
Heiri, Oliver; Lotter, André F; Lemcke, G (2001): Loss on ignition as a method for estimating organic and carbonate content in sediments: reproducibility and comparability of results. Journal of Paleolimnology, 25(1), 101-110, https://doi.org/10.1023/A:1008119611481
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: 9.18 m * Maximum DEPTH, sediment/rock: 12.06 m
Event(s):
Comment:
Further funding was provided by SKB (Swedish Nuclear Fuel and Waste Management Company) and the Bolin Centre for Climate Research.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Kuosmanen, Niina | Geocode | |
| 2 | Loss on ignition | LOI | % | Kuosmanen, Niina | Determined by loss on ignition at 550 °C, after Heiri et al. (2001) | |
| 3 | Loss on ignition | LOI | % | Kuosmanen, Niina | Determined by loss on ignition at 950°C, after Heiri et al. (2001) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
48 data points