First analysis of the #JezeroRimSpherules by the aptly-called " #PerseveranceRover Crater Rim spherule beds analysis team" in a recent #EGU26 abstract. It favours the impact spherules scenario but doesn't rule out volcanic origin.
Mangold et al: "Four-billion years old spherule beds revealed by Perseverance on the outer rim of Jezero crater"
https://doi.org/10.5194/egusphere-egu26-6455
All the "gory" details on the Jezero margin unit 😉
Jones et al: "Stratigraphy of Carbonate-Bearing Rocks at the Margin of Jezero Crater: Evidence for Shoreline Processes?"
https://doi.org/10.1029/2025JE009111
There's also a reference to a new paper on the margin unit, with an excellent sketch of its proposed formation and alteration.
Williford et al : "Carbonated ultramafic igneous rocks in Jezero crater"
https://www.science.org/doi/10.1126/science.adu8264
From https://www.hou.usra.edu/meetings/mepagapril2025/presentations/Thursday/0935_Stack-Morgan.pdf (h/t @PhilStooke on the UMSF discord)
Preliminary statigraphy of #WitchHazelHill, now with in-situ #PerseveranceRover observations (compare to orbital ones https://mastodon.social/@sharponlooker/114002684721968753)
Barnes et al: "Pre-impact stratigraphy exposed in the western Jezero crater rim"
https://doi.org/10.5194/epsc-dps2025-1618
A month-old open access #JezeroRimScience paper.
Cuevas-Quiñones et al: "Evidence for a composite volcano on the rim of Jezero crater on Mars"
https://doi.org/10.1038/s43247-025-02329-7
Peer-reviewed, open access version of the above (post nr 11)
Beck et al : "From hydrated silica to quartz: Potential hydrothermal precipitates found in Jezero crater"
https://doi.org/10.1016/j.epsl.2025.119256
Poster on very preliminary RIMFAX analysis of the Crater Rim campaing.
Cardarelli et al: "RIMFAX Ground Penetrating Radar Observations of Subsurface Structures in the Crater Rim of Jezero"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2888.pdf
🧵 19/n
Poster for a new iteration of analysis of light-toned float rocks, and a suggested formation scenario. #spinel #kaolinite
Royer et al : "Mineral Diversity of Light-Toned Float Rocks in Jezero Crater as Seen by SuperCam"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1872.pdf
🧵 18/n
#JezeroDeltaScience #JezeroRimScience #JezeroBrightRocks
[EDIT]: final paper at https://www.nature.com/articles/s43247-024-01837-2
Poster on #FreyaCastle / "zebra rock". Not sure if we can see which one is #KautzCreek without the #PDSAnalystNotebook perhaps.
Klidaras et al: "The Enigma of "Zebra Rock": A Banded Rock Discovered on the Jezero Crater Rim"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2014.pdf
"Gaze through ancient lines / Secrets buried deep in time / Zebra stripes of Mars."
🧵 17/n
V Martín