Mars: new insights and unresolved questions – Corrigendum

Changela, Hitesh; Chatzitheodoridis, Elias; Antunes, André; Beaty, D. W.; Bouw, Kristian; Bridges, J. C.; Čápová, Klara Anna; Cockell, Charles S.; Conley, Catharine A.; Dadachova, Ekaterina; Dallas, Tiffany D.; Mey, Stefaan de; Dong, Chuanfei; Ellery, Alex; Ferus, Martin; Foing, B. H.; Fu, Xiaohui; Fujita, Kazuhisa; Lin, Yangting; Jheeta, Sohan; Hicks, L. J.; Hu, Sen; Keresztúri, A.; Krassakis, Alexandros; Liu, Yang; Oberst, J.; Michalski, J.; Ranjith, P. M.; Rinaldi, Teresa; Rothery, David A.; Stavrakakis, Hector A.; Selbmann, Laura; Sinha, Rishitosh K.; Wang, Alian; Williford, K. H.; Vaci, Z.; Vago, Jorge L.; Waltemathe, Michael; Hallsworth, John E.

doi:10.1017/s1473550421000380

Cited by 10 publications

(9 citation statements)

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“…The presence of water‐altered sedimentary rocks and past aqueous depositional environments on Mars have been substantiated by both orbital and surface instrumentation (Carr & Head, 2010; Changela et al., 2022; Malin & Edgett, 2000). High‐resolution orbital images combined with rover and lander images have shown distinct sedimentary layers ranging from scales of meters to millimeters in thickness (Annex & Lewis, 2020; Deit et al., 2013; Fueten et al., 2014; Grotzinger et al., 2014; Lewis & Aharonson, 2014; Lewis et al., 2008; Rampe et al., 2017; Salese et al., 2020; Schmidt et al., 2018, 2021; Thomson et al., 2011; Wray, 2013).…”

Section: Introductionmentioning

confidence: 99%

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The presence of water-altered sedimentary rocks and past aqueous depositional environments on Mars have been substantiated by both orbital and surface instrumentation (Carr & Head, 2010;Changela et al, 2022;Malin & Edgett, 2000). High-resolution orbital images combined with rover and lander images have shown distinct sedimentary layers ranging from scales of meters to millimeters in thickness (

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confidence: 99%

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Protracted Hydrogeological Activity in Arabia Terra, Mars: Evidence From the Structure and Mineralogy of the Layered Deposits of Becquerel Crater

et al. 2022

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Protracted Hydrogeological Activity in Arabia Terra, Mars: Evidence From the Structure and Mineralogy of the Layered Deposits of Becquerel Crater

et al. 2022

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“…The presence of sedimentary rocks and past aqueous depositional environments on Mars have been substantiated by both orbital and surface instrumentation (e.g., Lucchitta et al, 1994;Squyres et al, 2004;Fueten et al, 2005;Haskin et al, 2005;Pondrelli et al, 2008;Carr and Head, 2010;Le Deit et al, 2013;Le Deit et al, 2016;Salese et al, 2019;Salese et al, 2020;Mangold et al, 2021;Changela et al, 2022). One of the past Martian environments where water is thought to have played a fundamental role is known as a playa.…”

Section: Introductionmentioning

confidence: 99%

Structural influences on groundwater circulation in the Makgadikgadi salt pans of Botswana? Implications for martian playa environments

Schmidt

Luzzi²,

Franchi³

et al. 2023

Front. Astron. Space Sci.

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Across the surface of Mars, evidence of past lacustrine and evaporitic environments has been found within basins and craters, where often layered sedimentary deposits and hydrated minerals are observed. However, the intensity, duration, and precise phases of aqueous processes during their deposition remain unresolved mostly for our inability to model subsurface structures. Although several geological processes and locations on Earth have been previously proposed as examples to describe these deposits on Mars, we lack a strong visualization of what water activity might have looked like during evaporitic stages within basins and craters. Here we propose to investigate the shallow subsurface of the Makgadikgadi salt pans of Botswana as a potential analog for understanding groundwater upwelling on Mars. The pans are found within the Makgadikgadi Basin, a depression located at the southwestern end of a northeast-southwest set of graben linked with the East African Rift. The Makgadikgadi Pans are evaporitic environment rich in hydrated minerals and groundwater activity. The purpose of this work is to identify buried faults and areas of relative water saturation within the lacustrine sediment of the Makgadikgadi Basin by means of electrical resistivity surveys. This work represents the first electrical resistivity survey of the basin floor which provides a precursory investigation of the relationship between groundwater, faults, basement depth, and the lacustrine sediments. We present four electrical survey lines from different locations in the pans which reveal distinct sedimentary units. Several faults are inferred from the vertical displacement of these units and accompanying low resistivity where displacement is observed. These results provide a framework for visualizing the sedimentary sequences of infilled basins and craters on Mars, which can broaden the ongoing discussion of hydrogeological processes that were active in the planet’s past. We propose Meridiani Planum, as well as Oyama and Becquerel crater of Arabia Terra as locations to establish this framework. Since such processes are still ongoing in the Makgadikgadi Basin, imaging the subsurface of the pans helps explain the formation of layered and salty deposits on the surface of Mars, how they may have interacted with flowing water, and whether they might have hosted life.

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“…The planet history can be divided into three main periods relating to changes in environmental conditions. Although there is no unanimous consensus, several findings suggest that early Mars had the environmental conditions required to have supported the presence of water under and on the planet's surface 1 , 2 . For example, Chevrier & Mathè 3 proposed a theory about the possible evolution of Mars.…”

Section: Introductionmentioning

confidence: 99%

Raman spectroscopic peculiarities of Icelandic poorly crystalline minerals and their implications for Mars exploration

Muñoz–Iglesias

Sánchez-García

Carrizo

et al. 2022

Sci Rep

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In this work, we have analyzed natural samples collected at three hydrothermal areas of Iceland by Raman spectroscopy. The studied high-latitude regions are considered environmentally and mineralogically appropriate Martian analogues since they are rich in weathered basalts that have been altered by hydrothermalism to mineral phases such as silica, clay minerals, sulfates, oxides, and sulfur. The main objective of this work was to assess the relation of the spectroscopic signatures of alteration to hydrothermal processes and biomediation, considering previous studies focused on the detection of lipid biomarkers in the same samples. The recorded Raman spectra, taken with optical parameters similar to the ExoMars 2022 Raman spectrometer, showed structural modifications in all secondary minerals in the form of peak shifts (in the case of sulfur and clay minerals), changes in the relative ratio intensity (in anatase) and/or shape broadening (in sulfates and hematite). These results reveal the suitability of Raman spectroscopy to examine areas rich in water-altered minerals, where a mixture of crystalline and amorphous phases can co-exist. The detection of silica is singularly interesting since, on the one hand, it can imply the past existence of hydrothermal hot springs rich in nutrient and redox gradients and, on the other hand, provides excellent matrix for biosignature preservation. The data can be helpful as an astrobiological database for the forthcoming missions to Mars, where potential upwelling groundwater systems could have altered the mineral phases in a similar way to that observed in this work.

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Mars: new insights and unresolved questions – Corrigendum

Cited by 10 publications

References 0 publications

Protracted Hydrogeological Activity in Arabia Terra, Mars: Evidence From the Structure and Mineralogy of the Layered Deposits of Becquerel Crater

Protracted Hydrogeological Activity in Arabia Terra, Mars: Evidence From the Structure and Mineralogy of the Layered Deposits of Becquerel Crater

Structural influences on groundwater circulation in the Makgadikgadi salt pans of Botswana? Implications for martian playa environments

Raman spectroscopic peculiarities of Icelandic poorly crystalline minerals and their implications for Mars exploration

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