SHERLOC Raman Mineral Class Detections of the Mars 2020 Crater Floor Campaign

Corpolongo, Andrea; Jakubek, Ryan S.; Abbey, W. J.; Asher, Sanford A.; Baker, Desirée; Berger, E. L.; Bhartia, R.; Brown, A. J.; Burton, Aaron; Bykov, Sergei V.; Cardarelli, E.; Cloutis, E. A.; Conrad, Pamela G.; Czaja, Andrew D.; DeFlores, L.; Flannery, David; Fornaro, Teresa; Fries, M.; Haney, Nikole C.; Hickman‐Lewis, K.; Kah, L. C.; Lee, Carina; McCubbin, F. M.; Minitti, M. E.; Morris, R. V.; Hollis, Joseph Razzell; Roppel, Ryan D.; Scheller, Eva L.; Sharma, Sunanda; Shkolyar, Svetlana; Siljeström, Sandra; Steadman, Kim; Steele, A.; Uckert, K.; Wogsland, Brittan; Yanchilina, Anastasia

doi:10.1029/2022je007455

Cited by 24 publications

(51 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Multiple possible detections of aromatic organic materials have also been made by SHERLOC deep‐UV Raman spectroscopy. Overall, Raman and fluorescence spectra revealed very low abundances of organics, where detected, comparable to those detected in Gale Crater, and often in association with salts and grain boundaries, suggesting the emplacement of organics during diagenetic episodes (see Corpolongo et al., 2023; Murphy et al., 2022; Sharma, Beegle, et al., 2022; Sharma, Roppel, et al., 2022). These results provide insight into the distribution of minor/trace amounts of organics, but more robust interpretations based on mapping the distribution and characterizing the composition of organic matter present in either igneous or alteration phases of the samples from Jezero Crater floor will require techniques with nano‐ to micrometer scale spatial resolution and the ability to detect and determine the chemistry and structure of organic molecules.…”

Section: Returned Sample Science Potentialmentioning

confidence: 91%

“…The average S and other elemental abundances for Bellegarde, Rochette, and Guillaumes are approximately equivalent (Table 4) with the exception of the Guillaumes abrasion site, which indicates a much higher (>2x) concentration of Na and Cl. Sulfate and perchlorate salts occupied the largest volume in the Guillaumes abrasion site (i.e., the unsuccessful rock core sample), where perchlorate, including sodium perchlorate, was also detected by SuperCam‐Raman (see Meslin et al., 2022, this volume) and SHERLOC‐Raman (see Murphy et al., 2022 and Corpolongo et al., 2023). The oxidized anions in these salts indicate a later origin relative to the deposition of the primary igneous minerals that contain reduced iron such as pyroxene and olivine and the spatially and volumetrically limited precipitation of iron(II)‐containing carbonate in Séítah.…”

Section: In Situ Analyses Of Sampled Outcropsmentioning

confidence: 99%

See 1 more Smart Citation

Samples Collected From the Floor of Jezero Crater With the Mars 2020 Perseverance Rover

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Returned Sample Science Potentialmentioning

confidence: 91%

Section: In Situ Analyses Of Sampled Outcropsmentioning

confidence: 99%

Samples Collected From the Floor of Jezero Crater With the Mars 2020 Perseverance Rover

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…The Alfalfa abrasion patch revealed white feldspar laths and pyroxene grains with possible olivine and quartz (Figure 20d). Evidence for aqueous alteration was less abundant than in previous abrasion patches but included detection of Fe oxides, carbonate, and possibly phyllosilicates, chlorite, phosphate, and perchlorate, as well as low concentrations of organic matter (Corpolongo et al., 2023; Sharma et al., 2022). Overall, Alfalfa was compositionally consistent with a basaltic andesite composition (Udry et al., 2023; Wiens et al., 2022) and, while strongly oxidized (Horgan et al., 2022), is otherwise the least aqueously altered abrasion from the campaign.…”

Section: Crater Floor Campaign Narrativementioning

confidence: 99%

“…Like in the Guillaumes and Bellegarde abrasion patches, the brown‐toned materials in the Dourbes abrasion patch were associated with Fe‐rich phases. Other alteration phases identified were sulfate, carbonate, and amorphous silicate, in addition to organics that did not have any apparent correlation with texture (Corpolongo et al., 2023; Sharma et al., 2022). The texture, mineralogy, and bulk chemistry of Dourbes was consistent with Brac and the Bastide member representing a cumulate igneous rock formed as olivine crystals settle in a slowly cooling lava body, with subsequent crystallization of pyroxene and plagioclase in the interstitial regions (e.g., Farley et al., 2022; Liu et al., 2022).…”

Section: Crater Floor Campaign Narrativementioning

confidence: 99%

Overview and Results From the Mars 2020 Perseverance Rover's First Science Campaign on the Jezero Crater Floor

et al. 2023

Self Cite

View full text Add to dashboard Cite

The Mars 2020 Perseverance rover landed in Jezero crater on 18 February 2021. After a 100‐sol period of commissioning and the Ingenuity Helicopter technology demonstration, Perseverance began its first science campaign to explore the enigmatic Jezero crater floor, whose igneous or sedimentary origins have been much debated in the scientific community. This paper describes the campaign plan developed to explore the crater floor's Máaz and Séítah formations and summarizes the results of the campaign between sols 100–379. By the end of the campaign, Perseverance had traversed more than 5 km, created seven abrasion patches, and sealed nine samples and a witness tube. Analysis of remote and proximity science observations show that the Máaz and Séítah formations are igneous in origin and composed of five and two geologic members, respectively. The Séítah formation represents the olivine‐rich cumulate formed from differentiation of a slowly cooling melt or magma body, and the Máaz formation likely represents a separate series of lava flows emplaced after Séítah. The Máaz and Séítah rocks also preserve evidence of multiple episodes of aqueous alteration in secondary minerals like carbonate, Fe/Mg phyllosilicates, sulfates, and perchlorate, and surficial coatings. Post‐emplacement processes tilted the rocks near the Máaz‐Séítah contact and substantial erosion modified the crater floor rocks to their present‐day expressions. Results from this crater floor campaign, including those obtained upon return of the collected samples, will help to build the geologic history of events that occurred in Jezero crater and provide time constraints on the formation of the Jezero delta.

show abstract

“…at multiple locations of the crater floor (Beyssac et al, 2023;Corpolongo et al, 2023;E. Clavé et al, 2022;Tice et al, 2022;Wiens et al, 2022).…”

mentioning

confidence: 99%

Developing Tailored Data Combination Strategies to Optimize the SuperCam Classification of Carbonate Phases on Mars

Veneranda,

Manrique,

Lopez‐Reyes

et al. 2023

Earth and Space Science

Self Cite

View full text Add to dashboard Cite

The SuperCam instrument onboard the Mars 2020 Perseverance rover investigates Martian geological targets by a combination of multiple spectroscopic techniques. As Raman, Visible‐Infrared Spectroscopy, and Laser‐Induced Breakdown Spectroscopy (LIBS) spectra deliver complementary information about the interrogated sample, the multivariate analysis of combined spectroscopic data sets is here proposed as a tool to optimize the SuperCam capability to discriminate mineral phases on Mars. For this purpose, the laboratory study of carbonate phases within the Ca‐Mg‐Fe ternary system were selected as representative case of study. After the characterization of model samples, the discrimination capability of mono analytical Raman, VISIR, and LIBS data sets was evaluated by applying a chemometric approach based on the combination of principal component analysis (for sample clustering) and Linear Discriminant Analysis (for mineral classification). Afterward, the low‐level combination (LL) of Raman, VISIR, and LIBS data was achieved by concatenating their spectra into a single data matrix. The mineral classification achieved by LL data sets outperformed the mono analytical ones, thus proving the complementarity between molecular and elemental spectroscopic techniques. Mineral classification was further improved by using a mid‐level data combination strategy. After evaluating benefits and limitations afforded by the proposed combination strategies, future developments are finally outlined. As such, the final objective of this research line is to develop a classification model based on data combination to optimize the capability of SuperCam in discriminating relevant minerals on Mars, this being a key requirement for the selection of the optimal targets to be cached for the future Mars Sample Return Mission.

show abstract

SHERLOC Raman Mineral Class Detections of the Mars 2020 Crater Floor Campaign

Cited by 24 publications

References 56 publications

Samples Collected From the Floor of Jezero Crater With the Mars 2020 Perseverance Rover

Samples Collected From the Floor of Jezero Crater With the Mars 2020 Perseverance Rover

Overview and Results From the Mars 2020 Perseverance Rover's First Science Campaign on the Jezero Crater Floor

Developing Tailored Data Combination Strategies to Optimize the SuperCam Classification of Carbonate Phases on Mars

Contact Info

Product

Resources

About