Carbon isotopic composition of thermocline-dwelling planktonic foraminifera and Mg/Ca-based sea surface temperature from cores in the western and eastern South Atlantic for the last glacial period ...

• Main Authors: Pinho, Tainã Marcos Lima, Chiessi, Cristiano Mazur, Campos, Marília C, Portilho-Ramos, Rodrigo Costa, Martínez-Méndez, G, Venancio, Igor Martins, Nascimento, Rodrigo Azevedo, Crivellari, Stefano, Albuquerque, Ana Luiza Spadano, Arz, Helge Wolfgang, Tiedemann, Ralf, Bahr, André, Mulitza, Stefan
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2024
• Subjects: Globorotalia inflata; Globorotalia truncatulinoides; Mg/Ca-based sea surface temperature; SACW; South Atlantic; Thermodynamic isotopic air-sea equilibration; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time iAtlantic; International Science Program for Integrative Research in Earth Systems AWI_INSPIRES; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.1594/pangaea.964368; https://doi.pangaea.de/10.1594/PANGAEA.964368

To comprehensively document the δ13C content of the South Atlantic Central Water (SACW), we used high-resolution thermocline-dwelling foraminiferal δ13C data obtained from three distinct marine sediment cores situated in the NW, SW, and SE regions of the South Atlantic. Our dataset enables a comprehensive examination of millennial-scale variations in SACW δ13C content across the entire basin. Notably, the thermocline δ13C records from the SE and NW sectors of the South Atlantic consistently exhibit concurrent negative excursions during most of the Heinrich Stadials (HS), a pattern that contrasts sharply with the absence of such negative excursions in the thermocline δ13C record from the SW sector of the South Atlantic ...