Early Zanclean coarse-grained deltas of southern France as terrestrial analogs to jezero western delta
Résumé
Since its landing in February 2021 and until the end of 2024, the Perseverance rover of the Mars 2020 mission has acquired observations on the western sedimentary fan of Jezero crater. First remotely, and then in-situ, these data have been useful to confirm the formation of the fan as a Gilbert-type delta, fed by water inputs from Neretva Vallis [1-4]. While the extensive data acquired with the rover allows to finely study the facies and geometries of the delta, some questions could be solved with help from a more external point of view. In that, we here propose terrestrial analogs to the Jezero delta to observe and compare mechanisms that led to the morphologies now preserved on Mars. We focus our attention on coarsegrained, barely lithified Gilbert-delta systems from the Early Zanclean period (~5 Ma, Early Pliocene) in southern France that could offer such analogies.
Origine | Fichiers éditeurs autorisés sur une archive ouverte |
---|