Jurnal Internasional Implikasi pemanfaatan tiosulfat mikrobial pada sedimen tanah liat merah di Cekungan India Tengah – Analogi Mars – Singh – – Geokimia, Geofisika, Geosystems
The use of microbial tyrosulfates and S-disproportion can be important mechanisms of sulfate formation on Earth and Mars. Sulfates on Mars date back to the end of the Noachian to the Hesperian period. In contrast, large sulfur / sulfate formations on Earth evolved under different chronological sequences. The S-cycle is provoked intermittently, allowing the emergence of many S-oxidizers on the evolutionary time scale. Sediments of altered marine red-sea sediments from Central Indian Basin (CIB) were examined as a potential analog for oxidation (S) sulfur on Mars. Basin deposits support active S-metabolic microbials which show S-disproportionalation combined with microbial carbon fixation through an intermediate process such as the use of thiosulfate. Sulfur-oxidizing / denitrifier thiotrophic is isolated in large quantities at neutral pH, from this dark-freeze-dominated clay and cold Fe-oxide. Experimental simulations under psychrophilic and thermo-tolerant conditions reveal anaerobic coexistence, thermal components under the dominant sea-floor conditions that are moist and neutral. Some causative factors such as hydrothermal seabed circulation, in situ volcanism, and reactivation of fracture zones can encourage S cycle activity to circulate in the CIB, even on a low scale. It is postulated that this condition is analogous to the situation of the Great Oxidation Event on Earth, when S-oxidizers evolve and develop. Experimental on the flux of microbial thiosulfate is little despite intense scientific interest in microbial S-disproportionation. To the best of our knowledge, this is a new report on the development of a regression model for microbial thiosulfate flux. This clay system and its component microbes can function as analogs to good old Noachian Mars and dispose of light on the planet's hydration and desiccator mechanisms.