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Self-Assembled Stru...
Self-Assembled Structures Formed in CO2-Enriched Atmospheres: A Case-Study for Martian Biomimetic Forms
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- Escamilla-Roa, Elizabeth (författare)
- Luleå tekniska universitet,Rymdteknik,Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Granada, Spain.; International Research Centre in Critical Raw Materials-ICCRAM, Universidad de Burgos, Burgos, Spain
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- Zorzano, María-Paz (författare)
- Department of Planetology and Habitability, Centro de Astrobiología (CAB), CSIC-INTA, Torrejón de Ardoz, Madrid, Spain
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- Martin-Torres, Javier (författare)
- Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Granada, Spain; School of Geosciences, University of Aberdeen, Aberdeen, United Kingdom
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- Sainz-Díaz, Claro Ignacio (författare)
- Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Granada, Spain
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- Cartwright, Julyan H.E. (författare)
- Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Granada, Spain; Instituto Carlos I de Física Teórica y Computacional, Universidad de Granada, Granada, Spain
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(creator_code:org_t)
- Mary Ann Liebert, 2022
- 2022
- Engelska.
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Ingår i: Astrobiology. - : Mary Ann Liebert. - 1531-1074 .- 1557-8070. ; 22:7, s. 863-879
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- Mars
- Carbonate minerals
- Self-assembly
- Natroxalate
- Chemical gardens
- CO2 atmosphere
- Atmospheric science
- Atmosfärsvetenskap
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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