The composition of gas emissions at Petite Terre (Mayotte, Comoros): inference on magmatic fingerprints

Marco Liuzzo; Andrea Di Muro; Andrea Luca Rizzo; Fausto Grassa; Massimo Coltorti; Magali Ader

Comptes Rendus. Géoscience, Volume 354 (2022) p. 275-298

Résumé : ... The archipelago results from intra-plate volcanism, the most recent eruptions having occurred on the youngest island of Grande Comore and on the oldest one of Mayotte. Since 2018, the eastern submarine flank of Mayotte has been the site of one of the largest recent eruptive events on Earth in terms of erupted lava volume. On land, the most recent volcanic activity occurred in Holocene on the eastern side of Mayotte, corresponding to the small Petite Terre Island, where two main and persistent gas seep areas are present (Airport Beach, namely BAS, and Dziani Dzaha intracrateric lake). ...