Blaser, Patrick; Waelbroeck, Claire; Thornalley, David J R; Lippold, Jörg; Pöppelmeier, Frerk; Kaboth-Bahr, Stefanie; Repschläger, Janne; Jaccard, Samuel L: Compiled proxy data records from different source water regions in the Atlantic and Pacific ocean [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.973506 (dataset in review)
Abstract:
We compiled data from five different proxies for the reconstruction of deep water mass composition in the deep Atlantic during the Last Glacial Maximum (23 - 19 ka BP), Heinrich Stadial 1 (17.5 - 14.6 ka BP), and Late Holocene (5 - 0 ka BP). The proxies are carbon and oxygen stable isotopes in benthic foraminifera tests, carbonate ion concentration inferred from benthic foraminifera B/Ca ratio, the radiogenic isotope composition of authigenic Nd in sediments, and the apparent radiocarbon ventilation age. Additionally, we generated one new record of stable carbon and oxygen isotope signatures from Site IODP U1302 in the Labrador Sea, and new stable carbon and oxygen isotope data for the three different time slices from several additional Atlantic sites. We use these data to estimate the distribution and mixing of different source waters in the deep Atlantic.
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Related to:
Blaser, Patrick; Waelbroeck, Claire; Thornalley, David J R; Lippold, Jörg; Pöppelmeier, Frerk; Kaboth-Bahr, Stefanie; Repschläger, Janne; Jaccard, Samuel L (submitted): Prevalent glacial North Atlantic Deep Water despite freshwater input. Nature Geoscience
Funding:
Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. 277128673: Quantitative Rekonstruktion der Ozeanzirkulation
European Commission (EC), grant/award no. 101023443: Comprehensive Climate Modeling of the Mid-Pleistocene Transition
European Commission (EC), grant/award no. 101065424: Quantitative reconstruction of past seawater oxygen concentrations
European Commission (EC), grant/award no. 339108: Elucidating the Causes and Effects of Atlantic Circulation Changes through Model-Data Integration
Swiss National Science Foundation (SNF), grant/award no. 192361: Constraining the sensitivity of land/cryosphere-Southern Ocean interactions to climate change across the last glacial cycle
Coverage:
Median Latitude: 50.084880 * Median Longitude: -45.638450 * South-bound Latitude: 50.002776 * West-bound Longitude: -45.638733 * North-bound Latitude: 50.166983 * East-bound Longitude: -45.638167
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
1 datasets
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Datasets listed in this bundled publication
- Blaser, P; Waelbroeck, C; Thornalley, DJR et al. (in review): New benthic foraminifera stable isotopes from IODP Site 303-U1302. https://doi.pangaea.de/10.1594/PANGAEA.973503