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Título:
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Molecular-scale surface processes during the growth of calcite in the presence ofmanganese
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Autores:
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Astilleros García-Monge, José Manuel ;
Pina Martínez, Carlos Manuel ;
Fernández-Díaz, Lourdes ;
Putnis, Andrew
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier Science Ltd, 2002
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Geología: Cristalografía
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Tipo = Artículo
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Resumen:
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Abstract—This paper deals with the growth behaviour of the Mn-Ca-CO3-H2O solid solution-aqueous solution system on calcite {1014} surfaces. This system represents a model example, which allows us to study the effect of a number of controlling factors on the crystallisation: (1) the supersaturation function, (x), and nucleation rate function, J(x), for the Mn-Ca-CO3-H2O system, (2) the relationship of such functions to the molecular scale growth mechanisms operating on growing surfaces, and (3) the surface structure of the calcite {1014} faces. In situ atomic force microscopy (AFM) growth experiments revealed a wide variety of surface phenomena, such as the transition between growth mechanisms, anisotropic changes in the step rates, and the influence of the Mn-bearing newly formed surface on subsequent growth (step stoppage followed by the formation of two-dimensional nuclei and the reproduction of the original calcite {1014} surface microtopography). These phenomena result from the interplay between the controlling parameters and are explained in those terms.
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En línea:
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https://eprints.ucm.es/id/eprint/14428/1/Molecular-scale_surface_processes_during_the_growth_of_calcite_in_the_presence_of_Mn_Astilleros_et_al_2002_01.pdf
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