Multinet and water column properties of station SO225-21 ...

• Main Authors: Rippert, Nadine, Nürnberg, Dirk, Raddatz, Jacek, Maier, Edith, Hathorne, Ed C, Bijma, Jelle, Tiedemann, Ralf
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2016
• Subjects: Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Edith; Pacific; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.1594/pangaea.864455; https://doi.pangaea.de/10.1594/PANGAEA.864455

Insight into past changes of upper ocean stratification, circulation, and nutrient signatures rely on our knowledge of the apparent calcification depth (ACD) and ecology of planktonic foraminifera, which serve as archives for paleoceanographic relevant geochemical signals. The ACD of different species varies strongly between ocean basins, but also regionally. We constrained foraminiferal ACDs in the western Pacific warm pool (Manihiki Plateau) by comparing stable oxygen and carbon isotopes (d18Ocalcite, d13Ccalcite) as well as Mg/Ca ratios from living planktonic foraminifera to in-situ physical and chemical water mass properties (temperature, salinity, d18Oseawater, d13CDIC). Our analyses point to Globigerinoides ruber as the shallowest dweller, followed by Globigerinoides sacculifer, Neogloboquadrina dutertrei, Pulleniatina obliquiloculata and Globotaloides hexagonus inhabiting increasingly greater depths. These findings are consistent with other ocean basins; however, absolute ACDs differ from other ... : Supplement to: Rippert, Nadine; Nürnberg, Dirk; Raddatz, Jacek; Maier, Edith; Hathorne, Ed C; Bijma, Jelle; Tiedemann, Ralf (2016): Constraining foraminiferal calcification depths in the western Pacific warm pool. Marine Micropaleontology, 128, 14-27 ...