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Orme, Lisa C; Miettinen, Arto; Divine, Dmitry V; Husum, Katrine; Pearce, Christof; Van Nieuwenhove, Nicolas; Born, Andreas; Mohan, Rahul; Seidenkrantz, Marit-Solveig (2021): Diatom percentage abundances and sea surface temperature reconstruction for core DA12-11/2-GC01 from the Iceland Basin [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.930972

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Abstract:
Here, we present datasets of diatom abundance and a diatom-based sea surface temperature reconstruction from the Iceland Basin. The 419.5 cm long marine sediment core DA12-11/2-GC01 was recovered in September 2012 by the Danish R/V Dana using a gravity corer. The core was taken from a location at the northern edge of the Gardar Drift and the eastern edge of the Björn Drift in the Iceland Basin (61.36.536 °N, 20.42.164 °W) at a water depth of 2120 m. Diatoms were analysed at 5 cm intervals over the upper 2 m of core, representing the period 6100-0 cal years BP, with chronological constraints provided by 6 radiocarbon dates. Diatoms were analysed using standard procedures, including the identification and counting of a minimum of 300 diatom per sample, which allowed calculation of the percentage abundances of different species. These abundances were converted into estimates of sea surface temperature using the weight averaging partial least squares transfer function approach.
Keyword(s):
diatoms; Holocene; Iceland; North Atlantic; Sea surface temperature
Related to:
Orme, Lisa C; Miettinen, Arto; Divine, Dmitry V; Husum, Katrine; Pearce, Christof; Van Nieuwenhove, Nicolas; Born, Andreas; Mohan, Rahul; Seidenkrantz, Marit-Solveig (2018): Subpolar North Atlantic sea surface temperature since 6 ka BP: Indications of anomalous ocean-atmosphere interactions at 4-2 ka BP. Quaternary Science Reviews, 194, 128-142, https://doi.org/10.1016/j.quascirev.2018.07.007
Coverage:
Latitude: 61.608930 * Longitude: -20.702730
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 2.105 m
Event(s):
DA12-11/2-GC01 * Latitude: 61.608930 * Longitude: -20.702730 * Elevation: -2120.0 m * Location: Iceland Basin * Method/Device: Gravity corer (GC) * Comment: Coring: September 2012 by the Danish R/V Dana
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmOrme, Lisa CGeocode
2AGEAgeka BPOrme, Lisa CGeocode – cal. Age
3Sea surface temperature, AugustSST (8)°COrme, Lisa CSST reconstruction, transfer function-based approachWAPLS
4Thalassiothrix longissimaT. longissima%Orme, Lisa CCounting, diatoms
5Thalassionema nitzschioidesT. nitzschioides%Orme, Lisa CCounting, diatoms
6Rhizosolenia hebetata forma hebetataR. hebetata f hebetata%Orme, Lisa CCounting, diatoms
7Rhizosolenia hebetata forma semispinaR. hebetata f semispina%Orme, Lisa CCounting, diatoms
8Rhizosolenia borealisR. borealis%Orme, Lisa CCounting, diatoms
9Rhizosolenia alataR. alata%Orme, Lisa CCounting, diatoms
10Rhizosolenia bergoniiR. bergonii%Orme, Lisa CCounting, diatoms
11Bacteriosira fragilisB. fragilis%Orme, Lisa CCounting, diatoms
12Roperia tesselataR. tesselata%Orme, Lisa CCounting, diatoms
13Porosira glacialisP. glacialis%Orme, Lisa CCounting, diatoms
14Actinocyclus curvatulusA. curvatulus%Orme, Lisa CCounting, diatoms
15Asteromphalus robustusA. robustus%Orme, Lisa CCounting, diatoms
16Hemidiscus cuneiformisH. cuneiformis%Orme, Lisa CCounting, diatoms
17Thalassiosira gravida sporeT. gravida spore%Orme, Lisa CCounting, diatoms
18Thalassiosira gravida vegetativeT. gravida vegetative%Orme, Lisa CCounting, diatoms
19Thalassiosira anguste-lineataT. anguste-lineata%Orme, Lisa CCounting, diatoms
20Thalassiosira eccentricaT. eccentrica%Orme, Lisa CCounting, diatoms
21Thalassiosira trifultaT. trifulta%Orme, Lisa CCounting, diatoms
22Thalassiosira lineataT. lineata%Orme, Lisa CCounting, diatoms
23Thalassiosira nordenskioldiiT. nordenskioldii%Orme, Lisa CCounting, diatoms
24Thalassiosira oestrupiiT. oestrupii%Orme, Lisa CCounting, diatoms
25Thalassiosira hyalinaT. hyalina%Orme, Lisa CCounting, diatoms
26Thalassiosira angulataT. angulata%Orme, Lisa CCounting, diatoms
27Thalassiosira pacificaT. pacifica%Orme, Lisa CCounting, diatoms
28Thalassiosira ferelineataT. ferelineata%Orme, Lisa CCounting, diatoms
29Coscinodiscus radiatusC. radiatus%Orme, Lisa CCounting, diatoms
30Coscinodiscus marginatusC. marginatus%Orme, Lisa CCounting, diatoms
31Coscinodiscus noduliferC. nodulifer%Orme, Lisa CCounting, diatoms
32Coscinodiscus oculus-iridisC. oculus-iridis%Orme, Lisa CCounting, diatoms
33Coscinodiscus asteromphalusC. asteromphalus%Orme, Lisa CCounting, diatoms
34Nitzschia marinaN. marina%Orme, Lisa CCounting, diatoms
35Nitzschia bicapitataN. bicapitata%Orme, Lisa CCounting, diatoms
36Fragilariopsis cylindrusF. cylindrus%Orme, Lisa CCounting, diatoms
37Nitzschia angularisN. angularis%Orme, Lisa CCounting, diatoms
38Fragilariopsis oceanicaF. oceanica%Orme, Lisa CCounting, diatoms
39Bacteriastrum hyalinumB. hyalinum%Orme, Lisa CCounting, diatomsBacteriastrum hyalina
40Synedra sp.Synedra sp.%Orme, Lisa CCounting, diatoms
41Nitzschia atlanticaN. atlantica%Orme, Lisa CCounting, diatomsNitzschia atlantica/Fragilariopsis atlantica
42Nitzschia uzunN. uzun%Orme, Lisa CCounting, diatoms
43Nitzschia kolaczeckiiN. kolaczeckii%Orme, Lisa CCounting, diatoms
44Pseudoeunotia doliolusP. doliolus%Orme, Lisa CCounting, diatoms
45Actinocyclus ehrenbergiiA. ehrenbergii%Orme, Lisa CCounting, diatoms
46Thalassiosira nodulolineataT. nodulolineata%Orme, Lisa CCounting, diatoms
47Coscinodiscus crenulatusC. crenulatus%Orme, Lisa CCounting, diatoms
48Coscinodiscus stellarisC. stellaris%Orme, Lisa CCounting, diatoms
49Thalassionema nitzschioides var. parvaT. nitzschioides var. parva%Orme, Lisa CCounting, diatoms
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2021 data points

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