Identifying short-range and long-range structural components of a compacted soil: An integrated geostatistical and spectral approach

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    Spectral analysis of geostatistical data has revealed the pore space of a compacted soil does not contain any specific structural component (laminations). Spectral analysis (using a discrete Fourier transform) of experimental variogram values revealed that a number of possible periodic components (laminations) did exist for individual vertical colour profiles (taken from images of the pore space captured using a scanning electron microscope). However, the periodicity varied laterally. The degree of lateral variation was found to depend on pore size. This suggests that the petrographic textures associated with compaction are not dominated by a small number of specific structural periodicities but a large number of localised structures. The analysis was carried out using a purpose built program called Specprofile.

    Original languageEnglish
    Number of pages14
    Pages (from-to)1277-1290
    JournalComputers and Geosciences
    Journal publication date01 Jan 2003
    Issue number10
    Publication statusPublished - 01 Jan 2003

      Research areas

    • Fourier transform, Lamination, Spatial frequency, Spectral profile, Variogram

    ID: 161926075