@article{248eecec137049bbafc1a52eb059ab51,
title = "Self-Assembled Structures Formed in CO2-Enriched Atmospheres: A Case-Study for Martian Biomimetic Forms",
abstract = "The aim of this study was to investigate the biomimetic precipitation processes that follow the chemical-garden reaction of brines of CaCl2 and sulfate salts with silicate in alkaline conditions under a Mars-type CO2-rich atmosphere. We characterize the precipitates with environmental scanning electron microscope micrography, micro-Raman spectroscopy, and X-ray diffractometry. Our analysis results indicate that self-assembled carbonate structures formed with calcium chloride can have vesicular and filamentary features. With magnesium sulfate as a reactant a tentative assignment with Raman spectroscopy indicates the presence of natroxalate in the precipitate. These morphologies and compounds appear through rapid sequestration of atmospheric CO2 by alkaline solutions of silica and salts.",
keywords = "Carbonate minerals, Chemical gardens, COatmosphere, Mars, Natroxalate, Self-assembly",
author = "Elizabeth Escamilla-Roa and Zorzano, {Mar{\'i}a Paz} and Javier Martin-Torres and Sainz-D{\'i}az, {Claro Ignacio} and Cartwright, {Julyan H.E.}",
note = "Funding Information: The authors acknowledge the contribution of the European COST Action CA17120 supported by the EU Framework Programme Horizon 2020 and the Spanish MINECO projects FIS2016-77692-C2 and PCIN-2017-098. M.P.Z. acknowledges the partial support of the Spanish State Research Agency (AEI) Project No. MDM-2017-0737 and of the Spanish Ministry of Science and Innovation project PID2019-104205GB-C21. Funding Information: The authors acknowledge the contribution of the European COST Action CA17120 supported by the EU Frame-work Programme Horizon 2020 and the Spanish MINECO projects FIS2016-77692-C2 and PCIN-2017-098. M.P.Z. acknowledges the partial support of the Spanish State Research Agency (AEI) Project No. MDM-2017-0737 and of the Spanish Ministry of Science and Innovation project PID2019-104205GB-C21. Publisher Copyright: {\textcopyright} Copyright 2022, Mary Ann Liebert, Inc., publishers 2022.",
year = "2022",
month = jul,
day = "1",
doi = "10.1089/ast.2021.0123",
language = "English",
volume = "22",
pages = "863--879",
journal = "Astrobiology",
issn = "1531-1074",
publisher = "Mary Ann Liebert Inc.",
number = "7",
}