Origin of enriched components in the South Atlantic: Evidence from 40 Ma geochemical zonation of the Discovery Seamounts

• Published in: Earth and Planetary Science Letters
• Main Authors: Schwindrofska, Antje, Hoernle, Kaj, Hauff, Folkmar, van den Bogaard, Paul, Werner, Reinhard, Garbe-Schönberg, Dieter
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2016
• Subjects: Gough; Mid-Atlantic Ridge; Pacific; Tristan; South Atlantic Ocean
• Online Access: https://oceanrep.geomar.de/id/eprint/31892/; https://oceanrep.geomar.de/id/eprint/31892/1/Schwindrofska_et.al_%202016_EPSL.pdf; https://oceanrep.geomar.de/id/eprint/31892/2/Appendices%20A-C.pdf; https://oceanrep.geomar.de/id/eprint/31892/3/Appendix%20D.xlsx; https://oceanrep.geomar.de/id/eprint/31892/4/Appendix%20E.xlsx; https://doi.org/10.1016/j.epsl.2016.02.041

Spatial geochemical zonation is being increasingly recognized in Pacific and Atlantic hotspot tracks and is believed to reflect zonation within plumes upwelling from the margins of the Large Low Shear Velocity Provinces (LLSVPs) at the base of Earth’s mantle. We present new 40Ar/39Ar age data for th...