美国NASA  A. Steele团队报道了早期火星上与蛇纹石化和碳化有关的有机合成。相关研究成果于2022年1月14日发表在《科学》。

水-岩相互作用与行星宜居性有关，影响矿物多样性和有机分子的产生。

研究人员研究了火星陨石Allan Hills 84001（ALH 84001）中的碳酸盐和硅酸盐，使用共定位纳米尺度分析来表征早期火星上水-岩反应的性质。研究人员发现复杂的难熔有机材料与矿物组合有关，这些矿物组合是由矿物碳化和蛇纹石化反应形成的。

有机分子与纳米磁铁矿共定位；两者都是在火星水-岩相互作用过程中原位形成的。诺亚纪晚期（39亿至41亿年前），火星早期存在两种可能截然不同的非生物有机合成机制。

附：英文原文

Title: Organic synthesis associated with serpentinization and carbonation on early Mars

Author: A. Steele, L. G. Benning, R. Wirth, A. Schreiber, T. Araki, F. M. McCubbin, M. D. Fries, L. R. Nittler, J. Wang, L. J. Hallis, P. G. Conrad, C. Conley, S. Vitale, A. C. O’Brien, V. Riggi, K. Rogers

Issue&Volume: 2022-01-14

Abstract: Water-rock interactions are relevant to planetary habitability, influencing mineralogical diversity and the production of organic molecules. We examine carbonates and silicates in the martian meteorite Allan Hills 84001 (ALH 84001), using colocated nanoscale analyses, to characterize the nature of water-rock reactions on early Mars. We find complex refractory organic material associated with mineral assemblages that formed by mineral carbonation and serpentinization reactions. The organic molecules are colocated with nanophase magnetite; both formed in situ during water-rock interactions on Mars. Two potentially distinct mechanisms of abiotic organic synthesis operated on early Mars during the late Noachian period (3.9 to 4.1 billion years ago).

DOI: abg7905

Source: https://www.science.org/doi/10.1126/science.abg7905#con16