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{"@context": "https://schema.org/", "@type": "Dataset", "@id": "doi:10.15784/601600", "additionalType": ["geolink:Dataset", "vivo:Dataset"], "name": "Taylor Glacier CO2 Isotope Data 74-59 kyr", "description": "High-precision carbon isotope data (d13C-CO2) show atmospheric CO2 during Marine Isotope Stage 4 (MIS 4, ~70.5-59 ka) was controlled by a succession of millennial-scale processes. Enriched d13C-CO2 during peak glaciation suggests increased ocean carbon storage. Variations in d13C-CO2 in early MIS4 suggest multiple processes were active during CO2 drawdown, potentially including decreased land carbon and decreased Southern Ocean air-sea gas exchange superposed on increased ocean carbon storage. CO2 remained low during MIS 4 while d13C-CO2 fluctuations suggest changes in Southern Ocean and North Atlantic air-sea gas exchange. A 7 ppm increase in CO2 at the onset of Dansgaard-Oeschger event 19 (72.1 ka) and a 22 ppm increase in CO2 during late MIS 4 (Heinrich Stadial 6, ~63.5-60 ka) involved additions of isotopically light carbon to the atmosphere. The terrestrial biosphere and Southern Ocean air-sea gas exchange are possible sources, with the latter event also involving decreased ocean carbon storage.", "citation": "Menking, J., Barker, S., Bauska, T., Brook, E. J., Buffen, A., Dyonisius, M., et al. 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This dataset has been downloaded 24 times since March 2017 (based on unique date-IP combinations)