Particle-size distribution analysis of soils using laser diffraction

S. Wanogho, G. Gettinby, B. Caddy

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Abstract

The use of laser diffraction for the particle size distribution analysis of the sub-63 μm fraction of soil samples is described. Each sub-63 μm fraction was obtained from the wet sieving of 1500 mg of whole soil. Using similarity probabilities, the data obtained, when combined with other information from wet sieving and/or organic matter content, will enable the correct identity of a given soil sample with that of an unknown to be made. Although the sub-63 μm fraction can account for 450 mg or more of the total soil content, analyses of this fraction can be conducted on sample sizes as small as 100 mg.
Original languageEnglish
Pages (from-to)117-128
Number of pages12
JournalForensic Science International
Volume33
Issue number2
DOIs
Publication statusPublished - Feb 1987

Keywords

  • soils
  • particle size analysis
  • laser diffraction
  • similarity probabilities

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