PANGAEA_983420
Chironomid counts from borehole Sokli B series in Sokli (Finland) in 2002
Helmens, Karin; Bergman, Jonas; Engels, Stefan; Kaislahti, Päivi; Shala, Shyhrete; Väliranta, Minna
Chironomid counts from borehole Sokli B series in Sokli (Finland) in 2002
2025-07-01
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.983420
Investigator
Stefan
Engels
s.engels@bbk.ac.uk
Earth Science
DEPTH, sediment/rock
Abiskomyia
Ablabesmyia
Brillia
Chaetocladius piger-type
Chaetocladius-type
Chironomus anthracinus-type
Chironomus plumosus-type
Cladopelma lateralis-type
Cladotanytarsus mancus-type
Corynocera ambigua
Corynocera oliveri-type
Corynoneura arctica-type
Corynoneura edwardsi-type
Corynoneura coronata-type
Corynoneura lobata-type
Corynoneura ?carriana-type
Cricotopus intersectus-type
Cricotopus cylindraceus-type
Cricotopus pulchripes-type
Cricotopus-type C
Orthocladius-type
Orthocladius-type S
Orthocladius rivulorum-type
Cricotopus obnixus-type
Cryptochironomus
Diamesa
Dicrotendipes nervosus-type
Diplocladius
Einfeldia dissidens-type
Endochironomus albipennis-type
Eukiefferiella spp.
Georthocladius
Glyptotendipes pallens-type
Gymnometriocnemus/Bryophaenocladius
Harnischia
Heterotrissocladius marcidus-type
Heterotrissocladius subpilosus-type
Heterotrissocladius grimshawi-type
Hydrobaenus
Krenopelopia
Lauterborniella
Limnophyes
Mesocricotopus
Metriocnemus eurynotus-type
Metriocnemus terrester-type
Microchironomus
Micropsectra insignilobus-type
Micropsectra radialis-type
Microtendipes pedellus-type
Monodiamesa
Nanocladius
Neozavrelia
Oliveridia
Omisus
Parachaetocladius
Parachironomus varus-type
Paracladius
Paracricotopus
Paracladopelma
Parakiefferiella bathophila-type
Parakiefferiella triquetra-type
Paramerina
Parametriocnemus
Paratanytarsus spp.
Paratanytarsus austriacus-type
Paratanytarsus penicillatus-type
Paratendipes albimanus-type
Phaenopsectra flavipes-type
Polypedilum nubeculosum-type
Polypedilum nubifer-type
Procladius
Prodiamesa
Protanypus
Psectrocladius septentrionalis-type
Psectrocladius psilopterus-type
Psectrocladius sordidellus-type
Psectrocladius flavus-type
Psectrocladius calcaratus-type
Pseudorthocladius
Pseudosmittia
Rheocricotopus effusus-type
Smittia
Stempellina-type
Stempellinella - Zavrelia
Stictochironomus rosenschoeldi-type
Stictochironomus-type A
Stilocladius
Symposiocladius
Synorthocladius
Tanytarsus chinyensis-type
Tanytarsus pallidicornis-type
Tanytarsus nemorosus-type
Tanytarsus lugens-type
Tanytarsus mendax-type
Thienemanniella clavicornis-type
Thienemannimyia
Sergentia coracina-type
Tribelos
Tvetenia
Zalutschia-type A
Zalutschia-type B
Zavrelimyia
Chironomini 1st instar
Orthocladiinae spp.
Tanypodini spp.
Tanytarsini spp.
Unidentified
geoscientificInformation
Borehole Sokli B series
Brorup
Chironomids
diatoms
Finland
Hydraulic piston corer, GM 100
loss on ignition
Macro-remains
MIS-5cd
non-pollen palynomorphs
Pollen
Sokli
Sokli_2002/4
see description in data abstract
2002-04-15
2002-04-18
Complete
67.80027778
67.80027778
29.30027778
29.30027778
13.42 m (DEPTH, sediment/rock)
19.11 m (DEPTH, sediment/rock)
unrestricted
CC-BY-4.0: Creative Commons Attribution 4.0 International
English
PANGAEA
Data Publisher for Earth & Environmental Science
https://www.pangaea.de/
Data Center Contact
Michael
Diepenbroek
info@pangaea.de
Leobener Str.
Bremen
Bremen
28359
Germany
online
5122 data points
text/tab-separated-values
Helmens, Karin F; Väliranta, Minna; Engels, Stefan; Shala, Shyhrete (2012): Large shifts in vegetation and climate during the Early Weichselian (MIS 5d-c) inferred from multi-proxy evidence at Sokli (northern Finland). Quaternary Science Reviews, 41, 22-38, https://doi.org/10.1016/j.quascirev.2012.02.008
Väliranta, Minna; Birks, Hilary H; Helmens, Karin; Engels, Stefan; Piirainen, Mikko (2009): Early Weichselian interstadial (MIS 5c) summer temperatures were higher than today in northern Fennoscandia. Quaternary Science Reviews, 28(9-10), 777-782, https://doi.org/10.1016/j.quascirev.2009.01.004
Brooks, Steve J; Langdon, Peter G; Heiri, Oliver (2007): The Identification and Use of Palaearctic Chironomidae Larvae in Palaeoecology. Quaternary Research Association, Technical Guide, Quaternary Research Association, London
Quaternary Research Association Technical Guide, 10, 276 pp, https://edoc.unibas.ch/entities/publication/8701126d-f70d-4972-ad94-4b59d5cdf706
Engels, Stefan; Helmens, Karin F; Väliranta, Minna; Brooks, Stephen J; Birks, H John B (2010): Early Weichselian (MIS 5d and 5c) temperatures and environmental changes in northern Fennoscandia as recorded by chironomids and macroremains at Sokli, northeast Finland. Boreas, 39(4), 689-704, https://doi.org/10.1111/j.1502-3885.2010.00163.x
This dataset provides counts of chironomid head capsules for the MIS 5cd sediment sequence retrieved from Sokli (Finland) in 2002. Counts per taxon are presented against depth (m). The chironomid dataset provides information on Early Weichselian lake and fluvial (floodplain, stream channel) ecosystem dynamics and was used to quantitatively reconstruct climate conditions (Engels et al., 2010). A total of 76 samples from the MIS 5cd sediment sequence were selected for chironomid analysis, with a higher number of samples taken from the central part of the sequence, where chironomid concentrations were low. The samples were treated with warm KOH (10%) to de-flocculate the material and subsequently rinsed through a sieve with a 100-µm mesh. The samples in the interval between 16.08 and 16.73m did not disintegrate completely after treatment with KOH, and, after trying a variety of approaches, an additional overnight treatment with cold HF was added to the preparation procedure. Chironomid head capsules (HCs) were hand-picked from the residue using a Bogorov sorting tray and mounted on permanent microscope slides using Euparal mounting medium. HCs were identified using Brooks et al. (2007). Where the sum of head capsules was below 50, neighbouring samples have been amalgamated to ensure a representative count sum was reached. The lowermost sample of the sequence contains 47 HCs but was not merged with a neighbouring sample due to the differences in the assemblage composition. The final dataset presented here contains 47 samples. All analyses were performed in the laboratories of Stockholm University, Sweden. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.983420"! ** The funding was provided by Swedish Nuclear Fuel and Waste Management Company (SKB) and Bolin Centre for Climate Research (Stockholm University).
http://www.marinespecies.org/aphia.php?p=taxdetails&id=156905
Procladius
http://www.marinespecies.org/aphia.php?p=taxdetails&id=181574
Cryptochironomus
http://www.marinespecies.org/aphia.php?p=taxdetails&id=987216
Limnophyes
https://doi.org/10.1016/j.quascirev.2009.01.004
Early Weichselian interstadial (MIS 5c) summer temperatures were higher than today in northern Fennoscandia
https://doi.org/10.1016/j.quascirev.2012.02.008
Large shifts in vegetation and climate during the Early Weichselian (MIS 5d-c) inferred from multi-proxy evidence at Sokli (northern Finland)
https://doi.org/10.1111/j.1502-3885.2010.00163.x
Early Weichselian (MIS 5d and 5c) temperatures and environmental changes in northern Fennoscandia as recorded by chironomids and macroremains at Sokli, northeast Finland
https://edoc.unibas.ch/entities/publication/8701126d-f70d-4972-ad94-4b59d5cdf706
The Identification and Use of Palaearctic Chironomidae Larvae in Palaeoecology
DIF
9.4
2025-07-01
2026-07-15