Identification of inorganic biosignatures in simulated gale crater aqueous environment studied through thermochemical modelling

Cogliati, Simone and Macey, Michael (2023). Identification of inorganic biosignatures in simulated gale crater aqueous environment studied through thermochemical modelling. In: 54th Lunar and Planetary Science Conference,, 13-17 Mar 2023, Houston (Texas, US)..

URL: https://www.hou.usra.edu/meetings/lpsc2023/pdf/136...

Abstract

Finding evidence of past or present life on Mars is one of the key objectives of the most recent and future space exploration missions [1]. In basaltic aqueous environments, similar to early martian fluvio-lacustrine systems, microbes can modify the fluid chemistry and promote the formation of biosignatures when sourcing bio-essential elements from the rocks [1, 2, 3, 4]. Geomorphological, mineralogical and chemical biosignatures may be particularly suited for assessing whether life existed on early Mars since they may be resistant to the extreme conditions at the present-day surface of Mars and, thus, may be more likely preserved and detectable in martian rocks [1].

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