CVG-2107 (Chapter 2) 11

CVG-2107 (Chapter 2) 11 - 4.3 Different types of clay...

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Prof. M. Fall - Uniersity of Ottawa Prof. M. Fall - Uniersity of Ottawa 11 4.3 Different types of clay minerals 2:1:1 Clay Mineral (e.g., Chlorite) The basal spacing is fixed at 14 Å. Gibbsite or brucite Source Markley., CA Chlorite 4.3 Different types of clay minerals • Different types of clay minerals have similar structures (tetrahedral and octahedral sheets) so that interstratification of layers of different clay minerals can be observed. • In general, the mixed layer clays are composed of interstratification of expanded water-bearing layers and non- water-bearing layers. Montmorillonite-illite is most common, and chlorite-vermiculite and chlorite-montmorillonite are often found. 1:1 2:1 2:1:1 Mixed
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Unformatted text preview: 4.3 Different types of clay minerals Identification of clay minerals How could I identify these different clay minerals? Scanning Electronic Microscope X Ray analysis Soil plasticity (chapiter 4) Soil activity (chapiter 4) 4.3 Different types of clay minerals h Common technique to look at clay minerals plate-like structure h qualitative Source Siva Identification of clay minerals Scanning Electronic Microscope 4.3 Different types of clay minerals X-Ray diffraction (XRD) h to identify the molecular structure and minerals present h To quantify the mineral presents X-ray diffractometer Identification of clay minerals 4.3 Different types of clay minerals...
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This note was uploaded on 03/21/2011 for the course GNG 4124 taught by Professor Soils during the Spring '11 term at Uni. of Nottingham Ningbo.

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