Silica botryoids from chemically oscillating reactions and as Precambrian environmental proxies
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DOI: 10.1130/g50948.1
Abstract: In this petrographic and geochemical study, we differentiated diverse quartz botryoids, including circular-concentric, twinned, columnar, wavy, and stromatolite-like structures versus synchronous biotic patterns of similar geometry and size dimensions (filamentous traits and stromatolites) in Precambrian… read more here.
Keywords: reactions precambrian; botryoids chemically; silica botryoids; precambrian environmental ... See more keywords
Chemically oscillating reactions in the formation of botryoidal malachite
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DOI: 10.2138/am-2020-7029
Abstract: Abstract The origin of banding patterns in malachite [Cu2CO3(OH)2] is an enduring problem in geology. While the bright green, vivid colors of this mineral have been attributed to the presence of Cu, no specific process… read more here.
Keywords: reactions formation; botryoidal malachite; oscillating reactions; formation botryoidal ... See more keywords
Self-Similar Patterns from Abiotic Decarboxylation Metabolism through Chemically Oscillating Reactions: A Prebiotic Model for the Origin of Life
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DOI: 10.3390/life13020551
Abstract: The origin of life must have included an abiotic stage of carbon redox reactions that involved electron transport chains and the production of lifelike patterns. Chemically oscillating reactions (COR) are abiotic, spontaneous, out-of-equilibrium, and redox… read more here.
Keywords: self similar; similar patterns; origin life; life ... See more keywords
Chemically Oscillating Reactions during the Diagenetic Formation of Ediacaran Siliceous and Carbonate Botryoids
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DOI: 10.3390/min11101060
Abstract: Chemically oscillating reactions are abiotic reactions that produce characteristic, periodic patterns during the oxidation of carboxylic acids. They have been proposed to occur during the early diagenesis of sediments that contain organic matter and to… read more here.
Keywords: oscillating reactions; formation; chemically oscillating; organic matter ... See more keywords