Barium isotopes in ocean island basalts as tracers of mantle processes

• Published in: Geochimica et Cosmochimica Acta
• Main Authors: Bai, Ruixia, Jackson, Matthew G., Huang, Fang, Moynier, Frédéric, Devos, Gabriel, Halldórsson, Sæmundur A., Lisiecki, Lorraine, Yin, Haoming, Peng, Yihang, Nan, Xiaoyun
• Other Authors: Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2022
• Subjects: Mantle geochemistry; Ocean island basalts (OIB); Barium isotopes; Volcanic hotspots; Crustal recycling; [SDU]Sciences of the Universe [physics]; Austral; St. Helena; Vestfirðir; Hekla; Iceland; Ocean Island
• Online Access: https://hal-insu.archives-ouvertes.fr/insu-03839236; https://doi.org/10.1016/j.gca.2022.08.023

International audience The compositions of ocean island basalts (OIB) can record signatures of ancient subducted crust that has been recycled through the mantle. Based on their radiogenic isotope, major and trace element compositions, several geochemically-extreme mantle compositions are suggested t...