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Jackson, Rebecca; Seidenkrantz, Marit-Solveig; de Vernal, Anne; Kucera, Michal: Palynology of sediment core MSM09/2_455-13 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974031 (dataset in review)

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Abstract:
Palynological data (dinoflagellate cysts, pollen and spores, organic foraminifera linings and reworked palynomorphs) spanning the last deglaciation and early Holocene (16.5 – 10 ka BP) of MSM09/2_455-13 (GeoTü SL 170) from the central eastern Baffin Bay. Palynological slides were prepared using sediments from the < 63µm residue from wet -sieving that were subsequently oven-dried (50°C for ca. 24 hours). Slides were prepared following the protocol of de Vernal et al., 1996 (https://www.researchgate.net/publication/312369989_Techniques_de_preparation_et_d'analyse_en_micropaleontologie). Modifications to the protocol included overnight treatment of the second hydrofluoric acid step. Dinoflagellate cysts (or dinocysts) were identified to species or genus levels following the nomenclature of Radi et al., 2013 (https://doi.org/10.1016/j.marmicro.2012.11.001) and Rochon et al., 1999 (https://hdl.handle.net/10013/epic.14283). At least 150 Lycopodium spores were counted per sample to assess concentration (i.e., dinoflagellate cysts g-1). Fluxes of dinoflagellate cysts, pollen and spores, organic foraminifera linings and reworked palynomorphs were calculated by multiplying the concentration (individuals g-1) by the mass accumulation rate (MAR; g cm2 ka-1). The MAR was calculated by multiplying dry bulk density (see Andersen et al.,2017 https://doi.org/10.1007/978-94-024-0990-1_6) by the linear sedimentation rate from our age model (cm ka-1).
Keyword(s):
Baffin Bay; Benthic foraminifera assemblages; deglacial; Dinoflagellates; Early Holocene; Greenland ice sheet; Neogloboquadrina pachyderma; North-American Arctic ice sheets; Paleoceanography; planktonic/benthic foraminifera ratio; Stable carbon and oxygen isotopes
Further details:
Jackson, Rebecca; Carlson, Anders Eskil; Hillaire-Marcel, Claude; Wacker, Lukas; Vogt, Christoph; Kucera, Michal (2017): Age-depth relationship, XRF/physical properties, and XRD anlaysis of sediment cores MSM09/2_467-3 (GeoTü SL 174) and MSM09/2_455-13 (GeoTü SL 170) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.882505
Jackson, Rebecca; Carlson, Anders Eskil; Hillaire-Marcel, Claude; Wacker, Lukas; Vogt, Christoph; Kucera, Michal (2017): Asynchronous instability of the North American-Arctic and Greenland ice sheets during the last deglaciation. Quaternary Science Reviews, 164, 140-153, https://doi.org/10.1016/j.quascirev.2017.03.020
Project(s):
Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic (ArcTrain)
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
German Research Foundation (DFG), grant/award no. GRK1904: ArcTrain
Coverage:
Latitude: 68.969200 * Longitude: -59.393000
Date/Time Start: 2008-09-05T10:13:00 * Date/Time End: 2008-09-05T10:13:00
Minimum DEPTH, sediment/rock: 0.4 m * Maximum DEPTH, sediment/rock: 6.2 m
Event(s):
MSM09/2_455-13 (GeoTü SL 170) * Latitude: 68.969200 * Longitude: -59.393000 * Date/Time: 2008-09-05T10:13:00 * Elevation: -1091.0 m * Location: Davis Strait * Campaign: MSM09/2 * Basis: Maria S. Merian * Method/Device: Gravity corer (GC) * Comment: rope length max. 1114m
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmJackson, RebeccaGeocode
2AGEAgeka BPJackson, RebeccaGeocode – median
3Accumulation rate, massMARg/cm2/kaJackson, RebeccaCalculated
4Sediment, dry massSed dmgJackson, Rebecca
5Volume, sedimentVol sedmlJackson, Rebecca
6LycopodiumLyc#Jackson, RebeccaCounting, palynologyTotal lycopodium spores
7Dinoflagellate cystDinofl cyst#Jackson, RebeccaCounting, palynologyTotal
8Islandinium minutumI. minutum#Jackson, RebeccaCounting, palynology
9Islandinium cezareI. cezare#Jackson, RebeccaCounting, palynologyIslandinium?cezare
10Brigantedinium spp.Brigantedinium spp.#Jackson, RebeccaCounting, palynology
11Dinoflagellate cystDinofl cysts#/gJackson, Rebecca
12Dinoflagellate total, fluxtotal dinoflagellates flux#/cm2/aJackson, RebeccaCalculated
13Pollen and spores, per unit sediment massPollen+spores/sed#/gJackson, Rebecca
14Accumulation rate, pollenAcc rate pollen#/cm2/kaJackson, RebeccaCalculatedPollen and spores flux
15Foraminiferal organic liningsFOL#Jackson, RebeccaCounting, palynology
16Foraminiferal organic linings, fluxFOL flux#/cm2/aJackson, RebeccaCalculated
17Palynomorpha, reworkedPalyn rew#Jackson, RebeccaCounting, palynology
18Palynomorpha, reworked, fluxPalyn rew#/cm2/kaJackson, RebeccaCalculated
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
399 data points

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