Petrology of the Eocene alkaline volcanism from the western Rio Grande Rise, South Atlantic Ocean

• Main Author: Guerra, Júlia Taciro Mandacarú
• Other Authors: Janasi, Valdecir de Assis
• Format: Master Thesis
• Language: English
• Published: Biblioteca Digital de Teses e Dissertações da USP 2023
• Subjects: Vulcanismo alcalino; Química Mineral; Petrologia ígnea; Oceano Atlântico Sul; Geoquímica; Elevação do Rio Grande; Igneous Petrology; Mineral Chemistry; Geochemistry; Rio Grande Rise; South Atlantic Ocean; Alkaline volcanism; Gough; Sob’
• Online Access: https://www.teses.usp.br/teses/disponiveis/44/44143/tde-13022023-121718/; https://doi.org/10.11606/D.44.2023.tde-13022023-121718

The Rio Grande Rise (RGR) is an important bathymetric feature in the South Atlantic Ocean. It is widely accepted that it was formed together with the Walvis Ridge at a plume-influenced spreading centre. Despite its potential to clarify the complex tectonomagmatic evolution of both plateaus in the co...