[Rockhounds] Siderite found on Mars

[Kreigh Tomaszewski]

Curiosity rover finds large carbon deposits on Mars
https://phys.org/news/2025-04-curiosity-rover-large-carbon-deposits.html

On Fri, Apr 18, 2025 at 10:54 AM Paul <etchplain at att.net> wrote:

> NASA digs up new clue in search for life on Mars
> Mathew Ward Agius, Deusche welle, April 17, 2025
>
> https://www.dw.com/en/nasa-digs-up-new-clue-in-search-for-life-on-mars/a-72262062
>
> Curiosity Finds First In Situ Evidence of Carbon
> Cycle on Ancient Mars, Science Alert, April 18, 2025
>
> https://www.sciencealert.com/curiosity-finds-first-in-situ-evidence-of-carbon-cycle-on-ancient-mars
>
> A paper is:
>
> Tutolo, B.M., Huasrath, EM., and 37 others, 2025, Carbonates
> identiKed by the Curiosity rover indicate a carbon cycle operated
> on ancient Mars. Science, 388, 6744, pp. 292-297.
> https://www.science.org/doi/10.1126/science.ado9966
>
> Yours,
>
> Paul H.
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