SubsidieMeestersThe quest for oceanic sediments within the Ancient Martian sedimentary record
Oceanid aims to investigate Mars' ancient hydrological system and potential ocean through advanced data analysis and exploration, establishing a timeline and context for sedimentary records.
Projectdetails
Introduction
The Martian missions have gradually revealed that Mars abounds with evidence of a full ancient hydrological system favorable to life emergence. If so, there are every reason to believe that Mars has hosted a hemispheric ocean covering the northern lowlands. This hypothesis is as old as Mars exploration but has been repeatedly challenged over the past two decades. The case of a primitive Martian ocean remains one of the planet’s most controversial and unsolved issues.
Recent Discoveries
Recent discoveries are re-opening this question, mainly highlighting that the main oceanic activity may be older than we thought. Related deposits are partly exhumed, and two rovers—Mars2020/NASA (arrived in 2021) and ExoMars/ESA-Roskosmos (to be launched in 2022)—have landing sites in the oldest terrains never explored on Mars. These sites display sediments possibly linked with an ocean system.
Requirements for Resolution
To wind up the debate, the identification of ancient deposits of the same age and composition with a global distribution in agreement with a possible ocean level is required. However, such clues are small-scale exposures solved only by high-resolution orbital data sets (>10 TB of data) or by in situ exploration, preventing a forward link to the global context.
Oceanid Proposal
Oceanid proposes to face this challenge by investigating at different scales: global, mesoscale, and microscale using complementary datasets (orbital, in situ, and experimental data). Oceanid will also rely on innovative methodologies of orbital data mining, including:
- Geological object recognition by artificial intelligence
- Erosion/deposition evolution models
- Clustering from multi-type data
Objectives
Oceanid's objectives are to:
- Describe the early Martian sedimentary record accumulated below possible global ocean levels.
- Establish a fine-scale chronology of primitive events.
- Contextualize Mars2020 and ExoMars missions within the global ancient hydrological system.
- Correlate the oceanic context, the transient water cycle, and the mineralogy observed both from orbit and in situ.
Financiële details & Tijdlijn
Financiële details
| Subsidiebedrag | € 1.970.000 |
| Totale projectbegroting | € 1.970.000 |
Tijdlijn
| Startdatum | 1-9-2023 |
| Einddatum | 31-8-2028 |
| Subsidiejaar | 2023 |
Partners & Locaties
Projectpartners
- UNIVERSITE LYON 1 CLAUDE BERNARDpenvoerder
- CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Land(en)
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