European Journal of Mineralogy
European Journal of Mineralogy
European Journal of Mineralogy
Articles | Volume 36, issue 5
Articles | Volume 36, issue 5
https://doi.org/10.5194/ejm-36-813-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-36-813-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 36, issue 5
Research article
 | 
18 Sep 2024
Research article |  | 18 Sep 2024

Carbon-containing pyrite spherules: mineral biosignatures in black smokers?

Chloé Truong, Sylvain Bernard, François Baudin, Aurore Gorlas, and François Guyot

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Short summary
Known as black smokers, sulfur-rich hydrothermal vents expel hot metal-rich water (~ 400°C). These extreme environments host micro-organisms capable of living at over 100°C. But to date, we do not know whether these microorganisms influence the formation of hydrothermal vents. The comparative study of minerals along the chimney wall is an essential step in determining whether microorganisms may have colonized and influenced mineral formation in certain parts of the chimney. 
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