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dc.contributor.authorGetenet, Melese
dc.contributor.authorGarcía Ruiz, Juan Manuel 
dc.contributor.authorVerdugo-Escamilla, Cristóbal
dc.contributor.authorGuerra Tschuschke, Isabel
dc.identifier.citationGetenet, M.; García-Ruiz, J.M.; Verdugo-Escamilla, C.; Guerra-Tschuschke, I. Mineral Vesicles and Chemical Gardens from Carbonate-Rich Alkaline Brines of Lake Magadi, Kenya. Crystals 2020, 10, 467.
dc.description.abstractMineral vesicles and chemical gardens are self-organized biomimetic structures that form via abiotic mineral precipitation. These membranous structures are known to catalyze prebiotic reactions but the extreme conditions required for their synthesis has cast doubts on their formation in nature. Apart from model solutions, these structures have been shown to form in serpentinization-driven natural silica-rich water and by fluid-rock interaction of model alkaline solutions with granites. Here, for the first time, we demonstrate that self-assembled hollow mineral vesicles and gardens can be synthesized in natural carbonate-rich soda lake water. We have synthesized these structures by a) pouring saturated metal salt solutions, and b) by immersing metal salt pellets in brines collected from Lake Magadi (Kenya). The resulting structures are analyzed by using SEM coupled with EDX analysis, Raman spectroscopy, and powder X-ray diffraction. Our results suggest that mineral self-assembly could have been a common phenomenon in soda oceans of early Earth and Earth-like planets and moons. The composition of the obtained vesicles and gardens confirms the recent observation that carbonate minerals in soda lakes sequestrate Ca, thus leaving phosphate behind in solution available for biochemical reactions. Our results strengthens the proposal that alkaline brines could be ideal sites for “one-pot” synthesis of prebiotic organic compounds and the origin of life.es_ES
dc.description.sponsorshipEuropean Research Council (ERC) 340863es_ES
dc.description.sponsorshipSpanish Government CGL2016-78971-Pes_ES
dc.description.sponsorship"Ministerio de Ciencia, Innovacion y Universidades" of the Spanish government BES-2017-081105es_ES
dc.rightsAtribución 3.0 España*
dc.subjectLake Magadies_ES
dc.subjectSoda lakees_ES
dc.subjectMineral self-organizationes_ES
dc.subjectMineral vesicleses_ES
dc.subjectChemical gardenses_ES
dc.subjectEarly Earthes_ES
dc.subjectPrebiotic chemistryes_ES
dc.subjectOrigin of lifees_ES
dc.titleMineral Vesicles and Chemical Gardens from Carbonate-Rich Alkaline Brines of Lake Magadi, Kenyaes_ES

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Atribución 3.0 España
Except where otherwise noted, this item's license is described as Atribución 3.0 España