| Title: |
Alteration history of aluminum-rich rocks at Jezero crater, Mars |
| Authors: |
Broz, Adrian, P; Horgan, Briony, H N; Bedford, Candice; Royer, Clément; Manelski, Henry; Connell, Stephanie; Wiens, Roger, C; Cardarelli, Emily, C; Madariaga, Juan Manuel; Mandon, Lucia; Klidaras, Athanasios; Bramble, Michael; Kathir, Bavani; Forni, Olivier; Carter, John; Dehouck, Erwin; Quantin-Nataf, Cathy; Johnson, Jeffrey, R; Nuñez, Jorge, I; Hausrath, Elisabeth; Wolf, Uriah; Cloutis, Edward, A; Beck, Pierre; Bell, James, F; Simon, Justin, I; Cousin, Agnes |
| Contributors: |
Department of Earth, Atmospheric, and Planetary Sciences West Lafayette (EAPS); Purdue University West Lafayette; Department of Earth Sciences Eugene OR; University of Oregon Eugene; SYSTEME SOLAIRE - LATMOS; Laboratoire Atmosphères, Observations Spatiales (LATMOS); Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); Earth, Planetary and Space Sciences, University of California, Los Angeles, CA, USA; Universidad del País Vasco Espainia / Euskal Herriko Unibertsitatea España = University of the Basque Country Spain = Université du pays basque Espagne (UPV / EHU); Caltech Division of Geological and Planetary Sciences; California Institute of Technology (CALTECH); Jet Propulsion Laboratory (JPL); NASA-California Institute of Technology (CALTECH); Dartmouth College Hanover; Université Paul Sabatier - Sciences, ingénierie et technologie (UPSSITECH); Université de Toulouse (EPE UT); Communauté d'universités et établissements de Toulouse (Comue de Toulouse)-Communauté d'universités et établissements de Toulouse (Comue de Toulouse); Institut d'astrophysique spatiale (IAS); Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES); Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE); École normale supérieure de Lyon (ENS de Lyon); Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL); Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS); Johns Hopkins University Applied Physics Laboratory Laurel, MD (APL); University of Nevada Las Vegas (WGU Nevada); Los Alamos National Laboratory (LANL); University of Winnipeg; Institut de Planétologie et d'Astrophysique de Grenoble (IPAG); Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (Fédération OSUG)-Université Grenoble Alpes (UGA); School of Earth and Space Exploration Tempe (SESE); Arizona State University Tempe (ASU); Astromaterials Research and Exploration Science (ARES); NASA Johnson Space Center (JSC); NASA-NASA; Institut de recherche en astrophysique et planétologie (IRAP); Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulouse (EPE UT) |
| Source: |
ISSN: 2662-4435 ; Communications Earth & Environment ; https://hal.science/hal-05404170 ; Communications Earth & Environment, 2025, 6, pp.935. ⟨10.1038/s43247-025-02856-3⟩. |
| Publisher Information: |
CCSD; Springer Nature |
| Publication Year: |
2025 |
| Collection: |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
| Subject Terms: |
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]; [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy |
| Description: |
International audience ; Aluminum-rich clay minerals are detected across the ancient surface of Mars and record intervals of intense alteration by liquid water. On Earth, these clay minerals can form from hydrothermal alteration or rainfall-driven chemical weathering over thousands to millions of years, but how they formed on Mars remains a mystery. The Perseverance rover discovered light-toned, cobble-sized, aluminumrich (30-45 wt% Al 2 O 3 ) "float" rocks (rock fragments), with some exhibiting spectral signatures of kaolinite, an aluminum-rich clay mineral. These rocks now enable an investigation into the ancient kaolinite-bearing terrains of Mars. To interpret their formation, we use data from the SuperCam and Mastcam-Z instruments onboard the rover to compare the chemistry and reflectance spectra of the float rocks with deeply weathered paleosols and hydrothermal kaolin deposits from Earth's geological record. Aluminum and titanium enrichments coupled with depletion of iron and magnesium are unlike hydrothermal deposits and instead comparable to bleached horizons of paleosols that formed under high rainfall during past greenhouse climates on Earth. These rocks therefore likely represent some of the wettest intervals of Mars' history. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1038/s43247-025-02856-3 |
| Availability: |
https://hal.science/hal-05404170; https://hal.science/hal-05404170v1/document; https://hal.science/hal-05404170v1/file/s43247-025-02856-3.pdf; https://doi.org/10.1038/s43247-025-02856-3 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.9BCF290E |
| Database: |
BASE |