Fluvial And Lacustrine Processes On Mars, And Their Relevance To Exploring Mars' Habitability

火星上的河流和湖泊过程及其与探索火星宜居性的相关性

• 批准号: 2739708
• 金额: --
• 依托单位: The Open University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2739708
• 关键词: Fluvial; Lacustrine; Processes; Mars; Their

The ExoMars Rosalind Franklin Rover mission [1] will launch in mid-2022, and land in the Oxia Planum [2] region of Mars in June 2023. The goal of Rosalind Franklin is to identify evidence of ancient life in the near shallow subsurface. To complete this goal, Rosalind Franklin will use its PanCam instrument, in concert with orbital remote sensing studies, to explore the geological context of the landing site to select a suitable drilling location.Regional remote sensing studies [3] show that several phases of fluvial activity have influence the landing site. This includes 'recent' (~3.5 Ga) flood deposits, valley networks associated with the sediment fan and more ancient fluvial systems possibly expressed in inverted relief (e.g., [4]). The timing and magnitude of this fluvial activity in Oxia Planum could have driven groundwater fluctuations that may have had a significant impact on preservation of biosignatures in sedimentary materials - key targets for Rosalind Franklin.The aim of this project is to explore the influence of regional fluvial process on the ExoMars landing site and to analyse in situ data returned by the 'PanCam' instrument on the ExoMars rover mission to support orbital analysis.

ExoMars罗莎琳德·富兰克林漫游者任务[1]将于2022年年中发射，并于2023年6月降落在火星的氧平原[1]地区。罗莎琳德·富兰克林的目标是在近浅层的地下找出古代生命的证据。为了完成这一目标，罗莎琳德·富兰克林号将使用其PanCam仪器，结合轨道遥感研究，探索着陆点的地质环境，选择合适的钻探地点。区域遥感研究表明，河流活动的几个阶段对着陆点有影响。这包括“最近”（~3.5 Ga）的洪水沉积，与沉积扇相关的山谷网，以及可能以倒浮雕表示的更古老的河流系统（例如[4]）。Oxia平原的河流活动的时间和规模可能会导致地下水的波动，这可能对沉积物质中生物特征的保存产生重大影响——这是罗莎琳德·富兰克林的关键目标。该项目的目的是探索区域河流过程对ExoMars着陆点的影响，并分析ExoMars漫游者任务上的PanCam仪器返回的原位数据，以支持轨道分析。