Periodic Bedrock Ridges at the ExoMars 2022 Landing Site: Evidence for a Changing Wind Regime

Oxia Planum on Mars is the landing site for the ExoMars 2022 mission. The region likely hosted a standing body of water, but the effect of the wind was also important in shaping the landscape. In this study, we first describe a set of linear ridges that, in our interpretation, were sculpted by the w...

ver descrição completa

Detalhes bibliográficos
Autores: Silvestro, S., Pacifici, A., Salese, F., Vaz, D. A., Neesemann, A., Tirsch, D., Popa, C. I., Pajola, M., Franzese, G., Mongelluzzo, G., Ruggeri, A. C., Cozzolino, F., Porto, C., Esposito, F.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Recursos:Instituto Nacional de Técnica Aeroespacial (INTA)
Repositorio:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
OAI Identifier:oai:digital.inta.es:20.500.12666/536
Acesso em linha:https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020GL091651
http://hdl.handle.net/20.500.12666/536
Access Level:acceso abierto
Palavra-chave:ExoMars
Landing
Mars
Oxia
Ripples
Wind
Descrição
Resumo:Oxia Planum on Mars is the landing site for the ExoMars 2022 mission. The region likely hosted a standing body of water, but the effect of the wind was also important in shaping the landscape. In this study, we first describe a set of linear ridges that, in our interpretation, were sculpted by the wind in a more recent past. We also show that the wind that formed the ridges (Periodic Bedrock Ridges) was blowing from a different direction than the ones that formed younger ripples on top, suggesting a complex geological history of wind erosion and deposition that will be further investigated during the ExoMars mission.