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SOIL KAOLINS AND THEIR GENETIC RELATIONSHIPS IN SOUTHEAST QUEENSLAND, AUSTRALIA
Author(s) -
KOPPI A. J.,
SKJEMSTAD J. O.
Publication year - 1981
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1981.tb01738.x
Subject(s) - crystallinity , tiron , soil water , mineralogy , materials science , geology , chemistry , soil science , composite material , biochemistry , enzyme , superoxide
Summary Kaolin clays from soils in southeast Queensland give diffraction patterns which vary, particularly in the shape and position of the 00 l reflections. To identify reasons for this variability, the kaolins in samples from forty soils were analysed for type, crystallinity, crystal size, and interstratification. Instrumental techniques used include X‐ray diffraction, infrared spectroscopy, and electron microscopy. Tiron‐extractable material was also determined. Properties of the clays are related to factors of soil formation; poor crystallinity of the kaolin and different amounts of Tiron‐extractable material are related to parent material. Kaolin of very small particle size (<0. 1 μm), is the main cause of broad 00 l peaks and high basal spacing.