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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): Pollen counts for the Eemian sediment sequence retrieved from Sokli (Finland) in 2010 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.979959 (DOI registration in progress)

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Published: 2025-04-09

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Abstract:
This dataset provides the pollen counts for the Eemian sediment sequence retrieved from Sokli (Finland) in 2010. Counts per taxon are presented against master sequence depth (m) and age (ka BP). Non-pollen palynomorphs (NPPs) and conifer stomata were also counted from the pollen slides and these data are presented alongside the pollen counts. Note that the upper 7 samples were retrieved from a different coring location but were matched to the overall sequence as described in Salonen et al. (2018). The number of Eucalyptus spores encountered during analysis are also presented. The pollen dataset provides information on terrestrial and aquatic vegetation dynamics (Salonen et al., 2018). A total of 217 samples was analysed, with samples prepared using HCl, KOH, sieving (212 μm mesh), Na-pyrophosphate, acetolysis, and bromoform heavy-liquid treatments and counted using a light microscope (400× magnification). The samples were prepared in the laboratories of University of Amsterdam, The Netherlands, and counted in the laboratories of University of Helsinki, Finland.
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
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 (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; 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
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
References:
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
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: 15.760 m * Maximum DEPTH, sediment/rock: 253.775 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).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmPlikk, AnnaGeocode
2AGEAgeka BPPlikk, AnnaGeocode
3Betula indeterminataBet.indet#Plikk, AnnaCounting, palynology
4Betula nanaBet.n#Plikk, AnnaCounting, palynology
5Betula pubescens/Betula pendulaB. pubescens/B. pendula#Plikk, AnnaCounting, palynology
6AlnusAln#Plikk, AnnaCounting, palynology
7CarpinusCar#Plikk, AnnaCounting, palynology
8CorylusCor#Plikk, AnnaCounting, palynology
9FrangulaFrg#Plikk, AnnaCounting, palynology
10FraxinusFrx#Plikk, AnnaCounting, palynology
11JuniperusJun#Plikk, AnnaCounting, palynology
12Larix-typeLar-T#Plikk, AnnaCounting, palynology
13PiceaPic#Plikk, AnnaCounting, palynology
14PinusPin#Plikk, AnnaCounting, palynology
15PopulusPop#Plikk, AnnaCounting, palynology
16QuercusQue#Plikk, AnnaCounting, palynology
17SalixSal#Plikk, AnnaCounting, palynology
18TiliaTil#Plikk, AnnaCounting, palynology
19UlmusUlm#Plikk, AnnaCounting, palynology
20Ambrosia-typeAmb-T#Plikk, AnnaCounting, palynology
21Anthemis-typeAnt-T#Plikk, AnnaCounting, palynology
22ArtemisiaArt#Plikk, AnnaCounting, palynology
23Aster-typeAst-T#Plikk, AnnaCounting, palynology
24Asteraceae indeterminataAsteraceae indet#Plikk, AnnaCounting, palynology
25BrassicaceaeBraae#Plikk, AnnaCounting, palynology
26CallunaCal#Plikk, AnnaCounting, palynology
27CaryophyllaceaeCphae#Plikk, AnnaCounting, palynology
28cf. Agrimonia eupatoriacf. A. eupatoria#Plikk, AnnaCounting, palynology
29cf. Humulus-Cannabiscf. Humulus-Cannabis#Plikk, AnnaCounting, palynology
30cf. Myricaria germanicacf. M. germanica#Plikk, AnnaCounting, palynology
31cf. Sambucus racemosacf.Sam.r#Plikk, AnnaCounting, palynology
32cf. Teucriumcf.Teu#Plikk, AnnaCounting, palynology
33ChenopodiaceaeCheae#Plikk, AnnaCounting, palynology
34Circaea lutetianaCir.l#Plikk, AnnaCounting, palynology
35CirsiumCir#Plikk, AnnaCounting, palynology
36Asteraceae liguliflorea-typeA. liguliflorea-T#Plikk, AnnaCounting, palynology
37CyperaceaeCypae#Plikk, AnnaCounting, palynology
38EpilobiumEpl#Plikk, AnnaCounting, palynology
39EricaceaeEriae#Plikk, AnnaCounting, palynology
40FilipendulaFlp#Plikk, AnnaCounting, palynology
41GaliumGal#Plikk, AnnaCounting, palynology
42PoaceaePoac#Plikk, AnnaCounting, palynology
43Hippophae rhamnoidesHip.r#Plikk, AnnaCounting, palynology
44PlantagoPla#Plikk, AnnaCounting, palynology
45Polygonum bistorta-typePol.b-T#Plikk, AnnaCounting, palynology
46Polygonum persicaria-typePol.p-T#Plikk, AnnaCounting, palynology
47PotentillaPti#Plikk, AnnaCounting, palynology
48Prunella-typePru-T#Plikk, AnnaCounting, palynology
49RanunculaceaeRanae#Plikk, AnnaCounting, palynology
50RosaceaeRosae#Plikk, AnnaCounting, palynology
51Rosaceae cf. prunusR. cf. prunus#Plikk, AnnaCounting, palynology
52Rubus chamaemorusRub.c#Plikk, AnnaCounting, palynology
53Rumex acetosa/Rumex acetosella-typeR. acetosa/R. acetosella-T#Plikk, AnnaCounting, palynology
54Rumex obtusifolius-typeRum.o-T#Plikk, AnnaCounting, palynology
55Sanguisorba minor-typeSan.m-T#Plikk, AnnaCounting, palynology
56Saxifraga oppositifolia-typeSax.o-T#Plikk, AnnaCounting, palynology
57Saxifraga stellaris-typeSax.s-T#Plikk, AnnaCounting, palynology
58Scrophularia/Euphrasia-typeScrophularia/Euphrastia-T#Plikk, AnnaCounting, palynology
59ThalictrumTha#Plikk, AnnaCounting, palynology
60Trifolium-typeTri-T#Plikk, AnnaCounting, palynology
61ApiaceaeApiae#Plikk, AnnaCounting, palynology
62UrticaUrt#Plikk, AnnaCounting, palynology
63Valeriana officinalis-typeVal.o-T#Plikk, AnnaCounting, palynology
64Viola arvensis-typeVio.a-T#Plikk, AnnaCounting, palynology
65AthyriumAth#Plikk, AnnaCounting, palynology
66BotrychiumBot#Plikk, AnnaCounting, palynology
67cf. Cryptogramma crispacf.Cry.c#Plikk, AnnaCounting, palynology
68DiphasiastrumDipt#Plikk, AnnaCounting, palynology
69Dryopteris-typeDrp-T#Plikk, AnnaCounting, palynology
70Huperzia selagoHup.s#Plikk, AnnaCounting, palynology
71Lycopodium annotinumLyc.a#Plikk, AnnaCounting, palynology
72Lycopodium clavatumLyc.c#Plikk, AnnaCounting, palynology
73Lycopodium indeterminataLyc.indet#Plikk, AnnaCounting, palynology
74Osmunda regalisOsm.r#Plikk, AnnaCounting, palynology
75PteridiumPtd#Plikk, AnnaCounting, palynology
76Selaginella selaginoidesSel.s#Plikk, AnnaCounting, palynology
77EquisetumEqu#Plikk, AnnaCounting, palynology
78Hippuris vulgarisHip.v#Plikk, AnnaCounting, palynology
79IsoetesIso#Plikk, AnnaCounting, palynology
80Menyanthes trifoliata-typeMen.t-T#Plikk, AnnaCounting, palynology
81Myriophyllum alterniflorumMyo.a#Plikk, AnnaCounting, palynology
82Myriophyllum spicatum-typeMyo.s-T#Plikk, AnnaCounting, palynology
83NupharNup#Plikk, AnnaCounting, palynology
84cf. Pilularia globuliferacf. P. globulifera#Plikk, AnnaCounting, palynology
85Polygonum amphibiumPol.m#Plikk, AnnaCounting, palynology
86PotamogetonPot#Plikk, AnnaCounting, palynology
87SparganiumSpa#Plikk, AnnaCounting, palynology
88SphagnumSph#Plikk, AnnaCounting, palynology
89Tilletia sphagniTil.s#Plikk, AnnaCounting, palynology
90Utricularia vulgarisUtr.v#Plikk, AnnaCounting, palynology
91EucalyptusEuc#Plikk, AnnaCounting, palynologyadded marker
92CharcoalCharcoal#Plikk, AnnaCounting, palynology
93Pollen, brokenPollen broken#Plikk, AnnaCounting, palynology
94Pollen, degradedPollen degraded#Plikk, AnnaCounting, palynology
95Pollen, crumpled or foldedPollen crumpled or folded#Plikk, AnnaCounting, palynology
96Pollen, obscuredPollen obscured#Plikk, AnnaCounting, palynology
97Pollen, otherPollen oth#Plikk, AnnaCounting, palynology
98Picea: stomataPic.stom#Plikk, AnnaCounting, palynology
99Pinus, stomataPis.s#Plikk, AnnaCounting, palynology
100Larix: stomataLar.stom#Plikk, AnnaCounting, palynology
101Juniperus: stomataJun.stom#Plikk, AnnaCounting, palynology
102Stomata, otheroth.Stom#Plikk, AnnaCounting, palynology
103Anuraeopsis fissa, eggsA. fissa eggs#Plikk, AnnaCounting, palynology
104BotryococcusBot#Plikk, AnnaCounting, palynology
105Ceratophyllum, leaf spikeCeratophyllym leaf spike#Plikk, AnnaCounting, palynology
106Cercophora-typeCrc-T#Plikk, AnnaCounting, palynology
107Filinia longiseta-type, eggsF. longiseta-T eggs#Plikk, AnnaCounting, palynology
108GlomusGlomus#Plikk, AnnaCounting, palynology
109Keratella-type, eggsKeratella-T eggs#Plikk, AnnaCounting, palynology
110Pediastrum alternansPed.a#Plikk, AnnaCounting, palynology
111Pediastrum angulosumPed.n#Plikk, AnnaCounting, palynology
112Pediastrum Boryanum indeterminataP. Boryanum indet#Plikk, AnnaCounting, palynology
113Pediastrum boryanum var. perforatumP. boryanum var. perforatum#Plikk, AnnaCounting, palynology
114Pediastrum boryanum var. pseudoglabrumP. boryanum var. pseudoglabrum#Plikk, AnnaCounting, palynology
115Pediastrum duplexPdi.d#Plikk, AnnaCounting, palynology
116Pediastrum integrumPdi.i#Plikk, AnnaCounting, palynology
117Pediastrum kawraiskyiPed.k#Plikk, AnnaCounting, palynology
118Pediastrum privumPdi.p#Plikk, AnnaCounting, palynology
119Pediastrum indeterminataPed.indet#Plikk, AnnaCounting, palynology
120PodosporaPodospora#Plikk, AnnaCounting, palynologyHdV-Type_368
121Spirogyra indeterminataSpirogyra indet#Plikk, AnnaCounting, palynology
122Sporormiella-typeSpo-T#Plikk, AnnaCounting, palynology
123Tetraedron minimumTet.m#Plikk, AnnaCounting, palynology
124GelasinosporaGel#Plikk, AnnaCounting, palynologyHdV-Type_1
125Pollen and spores, otherPollen+spores oth#Plikk, AnnaCounting, palynologyHdV-Type_127
126Pollen and spores, otherPollen+spores oth#Plikk, AnnaCounting, palynologyHdV-Type_128
127Pollen and spores, otherPollen+spores oth#Plikk, AnnaCounting, palynologyHdV-Type_129
128Pollen and spores, otherPollen+spores oth#Plikk, AnnaCounting, palynologyHdV-Type_132
129Pollen and spores, otherPollen+spores oth#Plikk, AnnaCounting, palynologyHdV-Type_210
130Pollen and spores, otherPollen+spores oth#Plikk, AnnaCounting, palynologyHdV-Type_217
131Pollen and spores, otherPollen+spores oth#Plikk, AnnaCounting, palynologyHdV-Type_225
132Pollen and spores, otherPollen+spores oth#Plikk, AnnaCounting, palynologyHdV-Type_314
133Pollen and spores, otherPollen+spores oth#Plikk, AnnaCounting, palynologyHdV-Type_315
134Pollen and spores, otherPollen+spores oth#Plikk, AnnaCounting, palynologyHdV-Type_340
135Pollen and spores, otherPollen+spores oth#Plikk, AnnaCounting, palynologyHdV-Type_560
136Ustulina deustaUst.d#Plikk, AnnaCounting, palynology
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
29078 data points

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