Magnesium/Calcium ratios of Globigerinoides ruber (white) s.s. of core NAP63-1 ...

• Main Authors: Nagai, Renata Hanae, Alvarenga, Aislyn, deMenocal, Peter B
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Mg/Ca ratios; Planktonic foraminifera; South Atlantic; DEPTH, sediment/rock; AGE; Globigerinoides ruber white, Magnesium/Calcium ratio; Piston corer; Inductively coupled plasma - mass spectrometry ICP-MS; AC07/02; Alpha-Crucis
• Online Access: https://dx.doi.org/10.1594/pangaea.943196; https://doi.pangaea.de/10.1594/PANGAEA.943196

Here we present planktonic foraminifera Globigerinoides ruber (white) s.s. Mg/Ca ratios (mmol/mol) obtained in marine sediment core NAP63-1 (24.8384°S, 44.3187°W, 842 m water depth, 224 cm sediment recovery) retrieved with the aid of a piston corer from the SW Atlantic upper slope. For Mg/Ca analyses, between 30-50 shells of G. ruber (white) s.s. tests were picked from the 250–300 µm size fraction and analyzed with a Thermo Scientific iCap Q quadrupole ICP-MS. Mg/Ca ratios were applied to obtain SW Atlantic sea-surface temperature estimates over the last 50 kyr. Our results highlight the relationship between the SW Atlantic sea-surface conditions and Atlantic Meridional Overturning Circulation strength. ...