The power of paired proximity science observations: Co-located data from SHERLOC and PIXL on Mars
Number of Authors: 282022 (English)In: Icarus, ISSN 0019-1035, E-ISSN 1090-2643, Vol. 387, article id 115179Article in journal (Refereed) Published
Abstract [en]
We present a synthesis of PIXL elemental data and SHERLOC Raman spectra collected on two targets investigated by the Perseverance rover during the first year of its exploration of Jezero Crater, Mars. The Bellegarde target (in the Máaz formation) and Dourbes target (in the Séítah formation) exhibit distinctive mineralogies that are an ideal case study for in situ analysis by SHERLOC and PIXL. Each instrument alone produces valuable data about the chemistry and spatial distribution of mineral phases at the sub-millimeter scale. However, combining data from both instruments provides a more robust interpretation that overcomes the limitations of either instrument, for example: 1) Detection of correlated calcium and sulfur in Bellegarde by PIXL is corroborated by the co-located detection of calcium sulfate by SHERLOC. 2) Detection of sodium and chlorine in Dourbes is consistent with either chloride or oxychlorine salts, but SHERLOC does not detect perchlorate or chlorate. 3) A Raman peak at 1120 cm−1 in Dourbes could be sulfate or pyroxene, but elemental abundances from PIXL at that location are a better match to pyroxene. This study emphasizes the importance of analyzing co-located data from both instruments together, to obtain a more complete picture of sub-millimeter-scale mineralogy measured in situ in Jezero crater, Mars, by the Perseverance rover. © 2022 The Authors
Place, publisher, year, edition, pages
Academic Press Inc. , 2022. Vol. 387, article id 115179
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:ri:diva-60046DOI: 10.1016/j.icarus.2022.115179Scopus ID: 2-s2.0-85135413950OAI: oai:DiVA.org:ri-60046DiVA, id: diva2:1701092
Note
Funding details: National Aeronautics and Space Administration, NASA; Funding details: Simons Foundation, SF, 80GSFC21M0002; Funding details: California Institute of Technology, CIT; Funding details: Queensland University of Technology, QUT; Funding text 1: The work described in this paper was partially carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. PIXLISE software was designed by teams from the Queensland University of Technology (QUT) and the NASA/Caltech/Jet Propulsion Laboratory through the Data to Discovery incubation program for science analysis tools as part of JPL's Data Science Program. Loupe was developed at the Jet Propulsion Laboratory by K. Uckert. J.R.H. was supported by a NASA Postdoctoral Program fellowship administered by the Universities Space Research Association on behalf of NASA. J.R.H. S.S. and others were also supported by the 107415 Mars 2020 Phase-E grant. K.R.M was supported by a NASA R&TD grant as well as the PIXL instrument team and the Simons Foundation. S.S. acknowledges support from NASA under award number 80GSFC21M0002. Data availability: The data used for the study is to be released on the Planetary Data System (PDS).; Funding text 2: The work described in this paper was partially carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. PIXLISE software was designed by teams from the Queensland University of Technology (QUT) and the NASA/Caltech/Jet Propulsion Laboratory through the Data to Discovery incubation program for science analysis tools as part of JPL's Data Science Program. Loupe was developed at the Jet Propulsion Laboratory by K. Uckert. J.R.H. was supported by a NASA Postdoctoral Program fellowship administered by the Universities Space Research Association on behalf of NASA. J.R.H., S.S., and others were also supported by the 107415 Mars 2020 Phase-E grant . K.R.M was supported by a NASA R&TD grant as well as the PIXL instrument team and the Simons Foundation . S.S. acknowledges support from NASA under award number 80GSFC21M0002 . Data availability: The data used for the study is to be released on the Planetary Data System (PDS).
2022-10-042022-10-042023-06-07Bibliographically approved