Fractionation of 226Ra and Ba in the Upper North Pacific Ocean

• Published in: Frontiers in Marine Science
• Main Authors: Pieter van Beek, Roger François, Makio Honda, Matthew A. Charette, Jean-Louis Reyss, Raja Ganeshram, Christophe Monnin, Susumu Honjo
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media S.A. 2022
• Subjects: radium; barium; seawater; ratio; fractionation; dating; Science; Q; General. Including nature conservation; geographical distribution; QH1-199.5; Antarctic; Hale; Pacific; Antarc*
• Online Access: https://doi.org/10.3389/fmars.2022.859117; https://doaj.org/article/f2b1c8f4c11e435facffef7356b00e48

Investigations conducted during the GEOSECS program concluded that radium-226 (T1/2 = 1602 y) and barium are tightly correlated in waters above 2500 m in the Atlantic, Pacific and Antarctic Oceans, with a fairly uniform 226Ra/Ba ratio of 2.3 ± 0.2 dpm µmol-1 (4.6 nmol 226Ra/mol Ba). Here, we report...