Biogeosciences
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Articles | Volume 23, issue 12
Articles | Volume 23, issue 12
https://doi.org/10.5194/bg-23-4213-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-4213-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 12
Research article
 | 
26 Jun 2026
Research article |  | 26 Jun 2026

The mirabilite microbiocosm in a Carpathian contact cave

Oana Teodora Moldovan, Crin-Triandafil Theodorescu, Erika Andrea Levei, and Oana Cadar

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Short summary
This study examines the microbial and geochemical environment surrounding mirabilite deposits in Izvorul Tăușoarelor Cave (Romanian Carpathians). Using a metabarcoding approach, the microbial profiling is unique: sulfur-reducing bacteria were absent in mirabilite samples. The presence of ammonia-oxidising archaea exclusively in the mirabilite area indicates a possible influence from a bat colony, which contributes minimal ammonia that supports the microbial equilibrium for mirabilite growth.
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