Microapleontological and geochemical analyses from the Indian sector of the Southern Ocean between MIS 12 and MIS 10


Micropaleontological (coccolith, planktonic foraminifera) and geochemical (CaCO3, CaXRF, δ18O N. pachyderma, δ13C N. pachyderma) analyses from sediment core MD04-2718 retrieved from the Subantarctic zone (SAZ) of the Indian Southern Ocean covering the time interval from Marine Isotope Stage (MIS) 12 to MIS 10 (440,000– 360,000 years). Coccolith abundances and masses were performed using SYRACO software at Geoscience Paris-Saclay Laboratory (GEOPS). CaCO3 percentages were also measured at GEOPS. Foraminifera abundances and masses and stable oxygen and carbon isotopes were performed at Laboratoire des Sciences du Climat et de l'Environnement (LSCE). SST were calculated using two methods : the Modern Analogue Technique (Haddam et al., 2016) and the percentage of N. pachyderma s. (Govin et al., 2009). CaXRF measurements were performed at ETH, Zurich. These approaches allowed to decipher the variations in Carbonate Counter Pump and upwelling strength in the Indian Sector of the Southern Ocean between MIS 12 and MIS 10, including the Termination V and interglacial MIS 11.

DOI https://doi.org/10.1594/PANGAEA.944858
Related Identifier IsSupplementTo https://doi.org/10.1016/j.quascirev.2022.107556
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.944858
Creator Brandon, Margaux ORCID logo; Duchamp-Alphonse, Stéphanie; Michel, Elisabeth ORCID logo; Landais, Amaëlle ORCID logo; Isguder, Gulay; Richard, Patricia ORCID logo; Pige, Nicolas; Bassinot, Franck; Jaccard, Samuel L ORCID logo; Bartolini, Annachiara
Publisher PANGAEA
Publication Year 2022
Funding Reference Agence Nationale de la Recherche https://doi.org/10.13039/501100001665 Crossref Funder ID IDEX Paris-Saclay, ANR-11-IDEX-0003-02 IDI 2017; Centre National de la Recherche Scientifique https://doi.org/10.13039/501100004794 Crossref Funder ID INSU-LEFE-IMAGO BIOCAD; European Research Council https://doi.org/10.13039/501100000781 Crossref Funder ID 817493 https://cordis.europa.eu/project/id/817493 ICORDA - Ice CORe DAting tools revisited to infer the dynamic of glacial – interglacial transitions over the last 1.5 million years; Swiss National Science Foundation https://doi.org/10.13039/501100001711 Crossref Funder ID 144811 https://data.snf.ch/grants/grant/144811 SeaO2 - Past changes in Southern Ocean overturning circulation - implications for the partitioning of carbon and oxygen between the ocean and the atmosphere; Swiss National Science Foundation https://doi.org/10.13039/501100001711 Crossref Funder ID 163003 https://data.snf.ch/grants/grant/163003 AmocCC - Constraining the relationship between climate, ACC flow intensity and Antarctic Meridional Overturning Circulation across the last glacial cycle
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 6 datasets
Discipline Earth System Research
Spatial Coverage (65.962 LON, -48.892 LAT)