TY - JOUR
T1 - The power of paired proximity science observations
T2 - Co-located data from SHERLOC and PIXL on Mars
AU - Razzell Hollis, Joseph
AU - Moore, Kelsey R.
AU - Sharma, Sunanda
AU - Beegle, Luther
AU - Grotzinger, John P.
AU - Allwood, Abigail
AU - Abbey, William
AU - Bhartia, Rohit
AU - Brown, Adrian J.
AU - Clark, Benton
AU - Cloutis, Edward
AU - Corpolongo, Andrea
AU - Henneke, Jesper
AU - Hickman-Lewis, Keyron
AU - Hurowitz, Joel A.
AU - Jones, Michael W.M.
AU - Liu, Yang
AU - Martinez-Frías, Jesús
AU - Murphy, Ashley
AU - Pedersen, David A.K.
AU - Shkolyar, Svetlana
AU - Siljeström, Sandra
AU - Steele, Andrew
AU - Tice, Mike
AU - Treiman, Alan
AU - Uckert, Kyle
AU - VanBommel, Scott
AU - Yanchilina, Anastasia
N1 - Publisher Copyright:
© 2022 The Authors
PY - 2022/11/15
Y1 - 2022/11/15
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/85135413950
U2 - 10.1016/j.icarus.2022.115179
DO - 10.1016/j.icarus.2022.115179
M3 - Article
AN - SCOPUS:85135413950
SN - 0019-1035
VL - 387
JO - Icarus
JF - Icarus
M1 - 115179
ER -