Sr-Nd-Pb isotope ratios for marine sediment core TN057-6 in the southeast Atlantic Ocean and cores located under the Agulhas Current over the past 150,000 years ...

• Main Authors: Barkley, Anne, Winckler, Gisela, Kaplan, Michael, Recasens, Cristina, Koffman, Bess, Calabozo, Fernando, Middleton, Jennifer, Anderson, Robert, Cai, Yue, Bolge, Louise, Longman, Jack, Goldstein, Steven
• Format: Dataset
• Language: English
• Published: Interdisciplinary Earth Data Alliance (IEDA) 2024
• Subjects: Regional Continents, Oceans; Provenance, Southern Ocean, ice rafted debris, dust, climate; Antarctic; Southern Ocean; Antarc*; South Atlantic Ocean
• Online Access: https://dx.doi.org/10.60520/ieda/113252; https://ecl.earthchem.org/view.php?id=3252

Disentangling inputs of aeolian dust, ice-rafted debris (IRD), and terrigenous detritus delivered by ocean currents to marine sediment provides important insights into Earth System processes and climate. This study uses Sr-Nd-Pb isotope ratios of the lithogenic fraction in deep-sea core TN057-6/ODP1090 (42°54’S, 8°54’E, 3751 m) from the subantarctic Southern Ocean southwest of Africa to identify source areas and quantify their relative contributions over the past 150,000 years (Marine Isotope Stage 1 to 6). We additionally report Sr-Nd-Pb isotope ratios of the lithogenic fraction in four deep-sea marine sediment cores (RC11-86, RC17-69, VM14-77, VM19-214) located under the Agulhas Current. ... : Patagonian dust, Agulhas Current and Antarctic ice rafted debris contributions to the South Atlantic Ocean over the past 150,000 years. Under Review at Proceedings of the National Academy of Science ...