Perseverance rover reveals an ancient delta-lake system and flood deposits at Jezero crater, Mars

Mangold, N.; Gupta, Sanjeev; Gasnault, O.; Dromart, G.; Tarnas, J. D.; Sholes, S. F.; Horgan, B.; Quantin‐Nataf, Cathy; Brown, Adrian; Mouélic, S. Le; Yingst, R. A.; Bell, James F.; Beyssac, Olivier; Bosak, Tanja; Calef, F.; Ehlmann, B. L.; Farley, Kenneth A.; Grotzinger, J. P.; Hickman‐Lewis, K.; Holm‐Alwmark, Sanna; Kah, L. C.; Martínez‐Frías, Jesús; McLennan, S. M.; Maurice, S.; Núñez, Jorge; Ollila, A.; Pilleri, P.; Rice, J. W.; Rice, M. S.; Simon, J. I.; Shuster, David L.; Stack, K. M.; Sun, V. Z.; Treiman, Allan H.; Weiss, B. P.; Wiens, R. C.; Williams, Amy J.; Williams, Nathan; Williford, K. H.

doi:10.1126/science.abl4051

Cited by 118 publications

(220 citation statements)

References 72 publications

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“…At the time of writing this paper and other accompanying papers in the Jezero Crater Floor collection, the ongoing progress of the Perseverance rover has brought it to the Jezero Delta campaign of its mission. Within the delta, the delta curvilinear unit (DCu) and some parts of the delta have been documented to contain carbonates, from orbital studies (Goudge et al, 2015(Goudge et al, , 2018, and are now being characterized by surface observations (Mangold et al, 2021). We anticipate unexpected findings in the rocks and cobbles of the delta, which will provide us views of the outside watershed at irregular intervals.…”

Section: Future Prospects and Mars Sample Returnmentioning

confidence: 93%

Properties of the Nili Fossae Olivine-clay-carbonate lithology: orbital and in situ at Séítah

Brown¹,

Kah²,

Mandon³

et al. 2022

Preprint

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 We use a Venn diagram approach to show the Nili Fossae olivine lithology is better named olivine-clay-carbonate  We postulate a flood lava origin for the olivine-clay-carbonate lithology at Séítah based on finding olivine cumulate and low viscosity lava  We find the clay in the cumulate olivine at Séítah is either talc or serpentine and eliminate other clay families Plain Language SummaryWe used orbital and in situ data to observe a lava flow near the Mars 2020 landing site at Jezero Crater. By analyzing the reflectance spectra of the rocks containing the lava, we have identified that clay is present in the rocks. We use in situ imaging data to determine that the lava contains close packed crystals (cumulate), a process which can happen in the bottom of a lake of lava. We use measurements from the SuperCam LIBS instrument to determine that the cumulate is accompanied by clays and eliminate families of clays to conclude it is either talc or serpentine.

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Section: Future Prospects and Mars Sample Returnmentioning

confidence: 93%

Properties of the Nili Fossae Olivine-clay-carbonate lithology: orbital and in situ at Séítah

Brown¹,

Kah²,

Mandon³

et al. 2022

Preprint

Self Cite

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“…The delay in the launch of the EM Rosalind Franklin rover mission means that we can use experience from previous and ongoing multispectral imaging instruments to optimize not only the science returned from the PanCam instrument, but also operational strategies. Although the Mastcam‐Z instrument is now on Mars, at the time of writing, initial results have only just begun to be published (Mangold et al., 2021). Thus, relevant examples of the application of in situ multispectral investigations are best provided at present by the Mastcam instrument (e.g., Bell et al., 2019; Horton et al., 2021; Johnson et al., 2016; Wellington et al., 2017).…”

Section: Discussionmentioning

confidence: 99%

Optimizing ExoMars Rover Remote Sensing Multispectral Science: Cross‐Rover Comparison Using Laboratory and Orbital Data

Grindrod

Stabbins

Motaghian

et al. 2022

Earth and Space Science

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Multispectral imaging instruments have been core payload components of Mars lander and rover missions for several decades. In order to place into context the future performance of the ExoMars Rosalind Franklin rover, we have carried out a detailed analysis of the spectral performance of three visible and near‐infrared (VNIR) multispectral instruments. We have determined the root mean square error (RMSE) between the expected multispectral sampling of the instruments and high‐resolution spectral reflectance data, using both laboratory spectral libraries and Mars orbital hyperspectral data. ExoMars Panoramic Camera (PanCam) and Mars2020 Perseverance Mastcam‐Z instruments have similar values of RMSE, and are consistently lower than for Mars Science Laboratory Mastcam, across both laboratory and orbital remote sensing data sets. The performance across mineral groups is similar across all instruments, with the lowest RMSE values for hematite, basalt, and basaltic soil. Minerals with broader, or absent, absorption features in these visible wavelengths, such as olivine, saponite, and vermiculite have overall larger RMSE values. Instrument RMSE as a function of filter wavelength and bandwidth suggests that spectral parameters that use shorter wavelengths are likely to perform better. Our simulations of the spectral performance of the PanCam instrument will allow the future use of targeted filter selection during ExoMars 2022 Rosalind Franklin operations on Mars.

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“…The delay in the launch of the EM Rosalind Franklin rover mission means that we can use experience from previous and ongoing multispectral imaging instruments to optimize not only the science returned from the PanCam instrument, but also operational strategies. Although the Mastcam-Z instrument is now on Mars, at the time of writing, initial results have only just begun to be published (Mangold et al, 2021). Thus, relevant examples of the application of in situ multispectral investigations are best provided at present by the Mastcam instrument (e.g., Bell et al, 2019;Horton et al, 2021;Johnson et al, 2016;Wellington et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Optimizing ExoMars 2022 Rover Remote Sensing Multispectral Science: Cross-Rover Comparison using Laboratory and Orbital Data

Grindrod

Allender

Cousins

et al. 2022

Preprint

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The scientific objectives of the ExoMars Rosalind Franklin rover mission are to (a) search for signs of past and present life on Mars, and (b) to characterize the geochemical environment as a function of depth in the shallow subsurface (Vago et al., 2015(Vago et al., , 2017. The primary remote sensing instrument on previous Mars landers and rovers has been multispectral imagers operating in the visible and near-infrared (VNIR) wavelengths (e.g., Bell et al., 2019;Gunn & Cousins, 2016). In addition to allowing geomorphological interpretations of the surface, the acquisition of in situ spectral information can help determine the composition of the environment close to the lander or rover. Although diagnostic spectral features of planetary surfaces tend to occur at longer IR wavelengths (e.g., Clark, 2019;Mustard & Glotch, 2019;Rossman & Ehlmann, 2019), there are many examples of studies using VNIR multispectral imaging instruments to derive important compositional information about both crystalline and amorphous materials (e.g., Farrand et al., 2016), which not only allow deeper scientific investigations

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Perseverance rover reveals an ancient delta-lake system and flood deposits at Jezero crater, Mars

Cited by 118 publications

References 72 publications

Properties of the Nili Fossae Olivine-clay-carbonate lithology: orbital and in situ at Séítah

Properties of the Nili Fossae Olivine-clay-carbonate lithology: orbital and in situ at Séítah

Optimizing ExoMars Rover Remote Sensing Multispectral Science: Cross‐Rover Comparison Using Laboratory and Orbital Data

Optimizing ExoMars 2022 Rover Remote Sensing Multispectral Science: Cross-Rover Comparison using Laboratory and Orbital Data

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