Hohmann, Sabrina (2024): Record of dinocyst assemblage compositions from sediment core GeoB19927-3 during the Holocene [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.964212
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Abstract:
The dataset contains abundances of dinoflagellate cysts (dinocysts) from sediment samples from sediment core GeoB19927-3 (73°35,26' N, 58°05,66' W) located in Southern Melville Bay (Baffin Bay). The dataset covers the depth interval between 760-0 cm top depths, corresponding to 7.7 kyrs BP – present. The core was taken at 932 meters of water depth by gravity coring during cruise MSM44 in 2015 (Dorschel et al., 2016). The core consists of 1147 cm of sediment. For dinocyst analysis, it was sub-sampled every centimetre within the top 25 cm, every 5 cm within the 25 cm to 280 cm interval and every 10 cm within the 280 cm to 760 cm interval, including 124 samples. Sample processing followed the procedure for palynological preparation described in Vernal et al. (2010). The taxonomy of dinocysts used here was based on Rochon et al. (1999) and de Vernal et al. (2020). At least 300 dinocyst specimens were counted per sample when possible. For samples with low dinocyst abundance as many specimens as possible were enumerated. In the sample with lowest dinocyst abundance, 89 specimens were counted. The chronology has been provided by Saini et al. (2020).
Supplement to:
Hohmann, Sabrina; Kucera, Michal; de Vernal, Anne (2023): Disentangling environmental drivers of subarctic dinocyst assemblage compositional change during the Holocene. Climate of the Past, 19(10), 2027-2051, https://doi.org/10.5194/cp-19-2027-2023
References:
de Vernal, Anne; Henry, Maryse; Bilodeau, Guy (2010): Micropaleontological preparation techniques and analyses. Les Cahiers du GEOTOP
de Vernal, Anne; Radi, Taoufik; Zaragosi, Sebastien; Van Nieuwenhove, Nicolas; Rochon, André; Allan, Estelle; De Schepper, Stijn; Eynaud, Frédérique; Head, Martin J; Limoges, Audrey; Londeix, Laurent; Marret, Fabienne; Matthiessen, Jens; Penaud, Aurélie; Pospelova, Vera; Price, Andrea; Richerol, Thomas (2020): Distribution of common modern dinocyst taxa in surface sediments of the Northern Hemisphere in relation to environmental parameters: the updated n=1968 database. Marine Micropaleontology, 159, 101796, https://doi.org/10.1016/j.marmicro.2019.101796
Dorschel, Boris; Afanasyeva, Victoria; Bender, Maren; Dreutter, Simon; Eisermann, Hannes; Gebhardt, Catalina; Hansen, Katrine Elnegaard; Hebbeln, Dierk; Jackson, Rebecca; Jeltsch-Thömmes, Aurich; Jensen, Laura; Kolling, Henriette Marie; Le Duc, Cynthia; Lenz, Kai-Frederik; Lübben, Birgit; Madaj, Lina; Martínez Méndez, Gema; Meyer-Schack, Birgit; Schade, Tobias; Siccha, Michael; Slabon, Patricia; Wangner, David Johannes (2016): BAFFEAST Past Greenland Ice Sheet dynamics, Palaeoceanography and Plankton Ecology in the Northeast Baffin Bay - Cruise No. MSM44 - June 30 - July 30, 2015 - Nuuk (Greenland) - Nuuk (Greenland). MARIA S. MERIAN-Berichte, DFG-Senatskommission für Ozeanographie, MSM44, 51 pp, https://doi.org/10.2312/cr_msm44
Rochon, André; de Vernal, Anne; Turon, Jean-Louis; Matthiessen, Jens; Head, Martin J (1999): Distribution of recent dinoflagellate cysts in surface sediments from the North Atlantic Ocean and adjacent seas in relation to sea-surface parameters. American Association of Stratigraphic Palynologists Foundation, AASP Contribution Series, 35, 152 pp
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 221211316: GRK/IRTG 1904: ArcTrain - Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic
Coverage:
Latitude: 73.587670 * Longitude: -58.094330
Date/Time Start: 2015-07-08T18:20:00 * Date/Time End: 2015-07-08T18:20:00
Minimum Elevation: -932.0 m * Maximum Elevation: -932.0 m
Event(s):
MSM44_353-3 (GeoB19927-3) * Latitude: 73.587670 * Longitude: -58.094330 * Date/Time: 2015-07-08T18:20:00 * Elevation: -932.0 m * Recovery: 1147 cm * Location: Baffin Bay * Campaign: MSM44 * Basis: Maria S. Merian * Method/Device: Gravity corer (GC)
Comment:
Project, funding: This study is a contribution of the International Research Training Group "Processes and Impacts of Climate Change in the North Atlantic Ocean and the Canadian Arctic" (ArcTrain), which was supported jointly by the German Research Foundation (DFG) (IRTG 1904) and by the Natural Sciences and Engineering Research Council of Canada (NSERC). We also acknowledge the support from the Fonds de recherche du Québec – Nature et Technologie (FRQNT).
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2480 data points
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