Geochemistry (Mg/Ca and stable oxygen isotopes) of Globigerinoides ruber (pink variety) of sediment core M125-35-3

• Main Authors: Meier, Karl J F, Bahr, André, Chiessi, Cristiano Mazur, Albuquerque, Ana Luiza Spadano, Raddatz, Jacek, Friedrich, Oliver
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Age model; Calculated from Mg/Ca ratios (Dekens et al. 2002); Calculated from Mg/Ca ratios (this study); Calculated from Mg/Ca ratios and d18O and corrected for ice volume; DEPTH; sediment/rock; Foraminifera; planktic δ18O; GC; Globigerinoides ruber pink; Magnesium/Calcium ratio; Gravity corer; M125; M125_428-3; M125-35-3; Meteor (1986); Mg/Ca; SAMBA; Sea surface temperature; annual mean; South Atlantic Ocean; stable oxygen isotopes; tropical western South Atlantic; δ18O; ice volume free; seawater
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.930612; https://doi.org/10.1594/PANGAEA.930612

This dataset includes stable oxygen isotope (δ¹⁸O ‰ V-SMOW) data and reconstructed Sea Surface Temperatures (SST) based on foraminiferal Mg/Ca measured on Globigerenoides ruber (pink variety) covering the last deglacial period (20 to 10 ka). Raw Mg/Ca data were converted to SSTs using the species-specific calibration provided by Dekens et al. (2002; doi:10.1029/2001GC000200). Combined stable oxygen isotope data and Mg/Ca based SSTs were used to calculate ice-volume free seawater (δ¹⁸Oivf-sw). Foraminiferal species G. ruber (p) were sampled from sediment Gravity Core M125-35-3 retrieved during research cruise M125 (RV METEOR) in 2016. Core M125-35-3 is located off south western Brazil in the tropical western South Atlantic in the pathway of the tropical warm southward-flowing Brazil Current.