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ExoMars Raman Laser Spectrometer: A Tool for the Potential Recognition of Wet-Target Craters on Mars.
Astrobiology ( IF 4.2 ) Pub Date : 2020-01-27 , DOI: 10.1089/ast.2019.2095
Marco Veneranda 1 , Guillermo Lopez-Reyes 1 , José Antonio Manrique 1 , Jesus Medina 1 , Patricia Ruiz-Galende 2 , Imanol Torre-Fdez 2 , Kepa Castro 2 , Cateline Lantz 3 , François Poulet 3 , Henning Dypvik 4 , Stephanie C Werner 4 , Fernando Rull 1
Affiliation  

In the present work, near-infrared, laser-induced breakdown spectroscopy, Raman, and X-ray diffractometer techniques have been complementarily used to carry out a comprehensive characterization of a terrestrial analogue selected from the Chesapeake Bay impact structure (CBIS). The obtained data clearly highlight the key role of Raman spectroscopy in the detection of minor and trace compounds, through which inferences about geological processes occurred in the CBIS can be extrapolated. Beside the use of commercial systems, further Raman analyses were performed by the Raman laser spectrometer (RLS) ExoMars Simulator. This instrument represents the most reliable tool to effectively predict the scientific capabilities of the ExoMars/Raman system that will be deployed on Mars in 2021. By emulating the analytical procedures and operational restrictions established by the ExoMars mission rover design, it was proved that the RLS ExoMars Simulator can detect the amorphization of quartz, which constitutes an analytical clue of the impact origin of craters. Beside amorphized minerals, the detection of barite and siderite, compounds crystallizing under hydrothermal conditions, helps indirectly to confirm the presence of water in impact targets. Furthermore, the RLS ExoMars Simulator capability of performing smart molecular mappings was successfully evaluated.

中文翻译:

ExoMars拉曼激光光谱仪:一种潜在识别火星上湿靶火山口的工具。

在本工作中,近红外,激光诱导击穿光谱,拉曼光谱和X射线衍射仪技术已被互补地用于对选自切萨皮克湾撞击结构(CBIS)的地面类似物进行全面表征。所获得的数据清楚地说明了拉曼光谱在检测微量和痕量化合物中的关键作用,通过该推断可以推断出CBIS中发生的地质过程。除了使用商业系统外,拉曼激光光谱仪(RLS)ExoMars Simulator还进行了进一步的拉曼分析。该仪器是有效预测ExoMars / Raman系统科学能力的最可靠工具,该系统将于2021年在火星上部署。通过模拟ExoMars任务漫游车设计建立的分析程序和操作限制,证明RLS ExoMars Simulator可以检测石英的非晶化,这构成了陨石坑撞击源的分析线索。除了非晶态矿物外,对重晶石和菱铁矿以及在水热条件下结晶的化合物的检测有助于间接确认撞击目标中是否存在水。此外,成功评估了RLS ExoMars Simulator执行智能分子作图的能力。在水热条件下结晶的化合物可间接确认撞击目标中是否存在水。此外,成功评估了RLS ExoMars Simulator执行智能分子作图的能力。在水热条件下结晶的化合物可间接确认撞击目标中是否存在水。此外,成功评估了RLS ExoMars Simulator执行智能分子作图的能力。
更新日期:2020-01-27
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