X-Ray Diffraction Techniques for Mineral Identification and Mineralogical Composition
2013; Linguagem: Inglês
10.2134/agronmonogr9.1.c49
ISSN2156-3276
Autores Tópico(s)Geochemistry and Geologic Mapping
ResumoIdentification, characterization, and an understanding of properties of the different minerals materially aid in evaluation of soils in relation to classification, agronomic practices, and engineering properties. Investigation of the structure, properties, and occurrence of soil clay minerals by X-ray diffraction methods has become a major effort in soil science. X-ray diffraction has contributed more to mineralogical characterization of clay fractions of soils than has any other single method of analysis. The phenomenon of diffraction involves the scattering of X-rays by atoms of a crystal and the reinforcement of scattered rays in definite directions away from the crystal. The choice of wavelength for diffraction analysis will be dictated by the minerals present in samples to be analyzed, the elemental composition of the samples, the resolution required, and the amount of absorption of the particular wavelength by air.
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