Expedition 391 Scientific Prospectus: Walvis Ridge Hotspot: drilling Walvis Ridge, Southeast Atlantic Ocean, to test models of ridge-hotspot interaction, isotopic zonation, and the hotspot reference frame

• Main Authors: Sager, William, Hoernle, Kaj A., Petronotis, Katerina
• Format: Report
• Language: English
• Published: International Ocean Discovery Program 2020
• Subjects: Gough; Mid-Atlantic Ridge; Tristan; South Atlantic Ocean
• Online Access: https://oceanrep.geomar.de/id/eprint/51760/; https://oceanrep.geomar.de/id/eprint/51760/1/391SP.PDF; https://doi.org/10.14379/%E2%80%8Biodp.sp.391.2020; https://doi.org/10.14379/iodp.sp.391.2020

Walvis Ridge (WR) is a long-lived hotspot track that began with a continental flood basalt event at ~132 Ma during the initial opening of the South Atlantic Ocean. WR stretches ~3300 km to the active volcanic islands of Tristan da Cunha and Gough, and it was originally paired with Rio Grande Rise (R...