The role of recycled oceanic crust in the alkaline basalts: Evidence from Zn isotopic compositions of alkaline basalts from the Madeira hotspot (eastern North Atlantic)

• Published in: Chemical Geology
• Main Authors: Liao, Renqiang, Zhu, Hongli, Geldmacher, Jörg, Li, Congying, Liu, He, Sun, Weidong
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2023
• Subjects: Dy; North Atlantic
• Online Access: https://oceanrep.geomar.de/id/eprint/59397/; https://oceanrep.geomar.de/id/eprint/59397/1/Liao%20etal.pdf; https://doi.org/10.1016/j.chemgeo.2023.121606

Plate tectonic processes introduce oceanic crust (as eclogite) into the sources of oceanic island basalts (OIB). The fate of this recycled material in the deep mantle is still poorly understood. Here we present a systematic study of Zn isotopes on well-characterized alkaline basalts (<5 Ma) from...