Kolling, Henriette Marie; Schneider, Ralph R; Gottschalk, Julia; Frick, Daniel A: Foraminiferal δ¹⁸O, Mg/Ca, and paleotemperatures for MSM101_44-3 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.990260 (dataset in review)
Abstract:
Gravity core MSM101_44-3 was recovered from the St. Anns Basin on the northeastern Scotian Shelf (45°46.651′N, 58°31.967′W) at 274 m water depth during cruise MSM101 (June 2021) with RV Maria S. Merian. The core was sectioned into 1 m segments, split into working and archive halves, and subsampled at 5 cm intervals for sediment analyses. Planktonic foraminifera Neogloboquadrina pachyderma (>150 µm fraction) were analyzed for Mg/Ca ratios and stable oxygen isotopes (δ¹⁸Oc). Mg/Ca measurements were performed using ICP-OES following oxidative and silicate-removal cleaning protocols, with quality control via reference material (ECRM 752-1). SSTMg/Ca was calculated using established calibrations, corrected for minor diagenetic effects. δ¹⁸Oc was measured on 25 specimens per sample using a Finnigan MAT 253 mass spectrometer, converted to δ¹⁸O of seawater (δ¹⁸Osw), corrected for global ice volume, and used to estimate past salinity (SSS). The reconstructed temperatures and δ¹⁸Osw primarily reflect spring–summer subsurface conditions (~20–80 m water depth) on the Scotian Shelf, supporting paleoceanographic studies of Holocene and late-glacial sedimentary environments.
Keyword(s):
Supplement to:
Kolling, Henriette Marie; Kienast, Markus; Matzerath, Peter; Gottschalk, Julia; Kienast, Stephanie S; Frick, Daniel A; Gross, Felix; Schneider, Ralph R (submitted): Atlantic water intrusions onto the Scotian Shelf during the past 8.6 ka BP, too be submitted at Climate of the Past. Climate of the Past
References:
Barker, S; Greaves, Mervyn; Elderfield, Henry (2003): A study of cleaning procedures used for foraminiferal Mg/Ca paleothermometry. Geochemistry, Geophysics, Geosystems, 4(9), https://doi.org/10.1029/2003GC000559
Bemis, E B; Spero, Howard J; Bijma, Jelle; Lea, David W (1998): Reevaluation of the oxygen isotopic composition of planktonic foraminifera: Experimental results and new paleotemperature equations. Paleoceanography, 13(2), 150-160, https://doi.org/10.1029/98PA00070
Boyle, Edward A (1983): Manganese carbonate overgrowths on foraminifera tests. Geochimica et Cosmochimica Acta, 47(10), 1815-1819, https://doi.org/10.1016/0016-7037(83)90029-7
Colbourne, Eugene; Holden, Joseph; Craig, J; Senciall, D; Bailey, W; Stead, P; Fitzpatrick, C (2015): Physical Oceanographic Conditions on the Newfoundland and Labrador Shelf during 2014. CSAS Research Doc. 2015/053, Fisheries and Oceans Canada, Ottawa, Canada
Elderfield, Henry; Ferretti, Patrizia; Greaves, Mervyn; Crowhurst, Simon J; McCave, I Nicholas; Hodell, David A; Piotrowski, Alexander M (2012): Evolution of ocean temperature and ice volume through the Mid-Pleistocene Climate Transition. Science, 337(6095), 704-709, https://doi.org/10.1126/science.1221294
Elderfield, Henry; Ganssen, Gerald M (2000): Past temperature and d18O of surface ocean waters inferred from foraminiferal Mg/Ca ratios. Nature, 405(6785), 442-445, https://doi.org/10.1038/35013033
Greco, Mattia; Meilland, Julie; Zamelczyk, Katarzyna; Rasmussen, Tine L; Kucera, Michal (2020): The effect of an experimental decrease in salinity on the viability of the Subarctic planktonic foraminifera Neogloboquadrina incompta. Polar Research, 39(0), https://doi.org/10.33265/polar.v39.3842
Herman, A W; Platt, Trevor (1986): Primary production profiles in the ocean-estimation from a chlorophyll light model. Oceanologica Acta, 9(1), 31-40
Jonkers, Lukas; Brummer, Geert-Jan A; Peeters, Frank J C; van Aken, Hendrik M; de Jong, M Femke (2010): Seasonal stratification, shell flux, and oxygen isotope dynamics of left-coiling N. pachyderma and T. quinqueloba in the western subpolar North Atlantic. Paleoceanography, 25, PA2204, https://doi.org/10.1029/2009PA001849
Jonkers, Lukas; Jimenez-Amat, Patricia; Mortyn, P Graham; Brummer, Geert-Jan A (2013): Seasonal Mg/Ca variability of N. pachyderma (s) and G. bulloides: Implications for seawater temperature reconstruction. Earth and Planetary Science Letters, 376, 137-144, https://doi.org/10.1016/j.epsl.2013.06.019
LeGrand, Allegra N; Schmidt, Gavin A (2006): Global gridded data set of the oxygen isotopic composition in seawater. Geophysical Research Letters, 33(12), L12604, https://doi.org/10.1029/2006GL026011
Renkl, Christoph; Oliver, Eric C J; Thompson, K R (2024): Downscaling the ocean response to the Madden–Julian Oscillation in the Northwest Atlantic and adjacent shelf seas. Climate Dynamics, 62(7), 6719-6744, https://doi.org/10.1007/s00382-024-07233-y
Schneider, Ralph R; Brembach, Kerstin; Gößling, Paula; Gross, Felix; Günther, Leonard; Heinrich, Sven; Huygen, Fynn; Kallinich, Nina; Kolling, Henriette Marie; Lange, Dorothea; Lindner, Marie; Matzerath, Peter; Martinez-Bautista, Orlando; Morgenweck, Lea; Sulaiman, Hanif; Supka, Ruth; Vesely, Nele; Wolf, Josephin (2021): Paleoclimate and Biogeochemistry Nova Scotia Margin, Cruise No. MSM101, June 12. 2021 - July 20. 2021, Emden (Germany) - Emden (Germany). MARIA S. MERIAN-Berichte, Begutachtungspanel Forschungsschiffe, MSM101, 37 pp, https://doi.org/10.48433/cr_msm101
Siddall, Mark; Rohling, Eelco J; Almogi-Labin, Ahuva; Hemleben, Christoph; Meischner, Dieter; Schmelzer, I; Smeed, D A (2003): Sea-level fluctuations during the last glacial cycle. Nature, 423(6942), 853-858, https://doi.org/10.1038/nature01690
Funding:
Coverage:
Latitude: 45.803430 * Longitude: -58.661690
Date/Time Start: 2021-07-05T17:16:13 * Date/Time End: 2021-07-05T17:16:13
Minimum DEPTH, sediment/rock: 0.105 m * Maximum DEPTH, sediment/rock: 8.905 m
Event(s):
MSM101_44-3 * Latitude: 45.803430 * Longitude: -58.661690 * Date/Time: 2021-07-05T17:16:13 * Elevation: -274.2 m * Location: North Atlantic Ocean * Campaign: MSM101 (NOVAMAR) * Basis: Maria S. Merian * Method/Device: Gravity corer (GC) * Comment: Core length: 15 meter
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Kolling, Henriette Marie | Geocode | |
| 2 | AGE | Age | ka BP | Kolling, Henriette Marie | Geocode – median age | |
| 3 | Neogloboquadrina pachyderma, δ18O | N. pachyderma δ18O | ‰ PDB | Kolling, Henriette Marie | Finnigan MAT253 coupled to a Kiel IV preparation line | vs. VPDB |
| 4 | Neogloboquadrina pachyderma, Magnesium/Calcium ratio | N. pachyderma Mg/Ca | mmol/mol | Kolling, Henriette Marie | Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES), Spectro Arcos | size fraction >150 µm |
| 5 | Sea surface temperature | SST | °C | Kolling, Henriette Marie | Calculated according to Bemis et al., 1998 | |
| 6 | δ18O, seawater, reconstructed | δ18Osw | ‰ SMOW | Kolling, Henriette Marie | Calculated | translated to the Vienna Standard Mean Ocean Water (V-SMOW) scale by adding 0.27 ‰ |
| 7 | Sea surface salinity | SSS | Kolling, Henriette Marie | Calculated according to LeGrande & Schmidt, 2006 |
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:
669 data points